https://wiki.neogeodev.org//api.php?action=feedcontributions&feedformat=atom&user=Illusionrip 2026-05-21T23:46:23Z User contributions MediaWiki 1.40.0 https://wiki.neogeodev.org//index.php?title=NEO-E0&diff=9013 2025-11-19T19:18:18Z

<p>Illusionrip: /* 68k vector table swapping */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_e0.jpg<br /> |pkg=QFP64R<br /> |manu=fujitsu<br /> |date=1991 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-3}} ...<br /> }}<br /> <br /> Just a 24-bit buffer and logic for [[68k vector table]] swapping.<br /> <br /> =68k vector table swapping=<br /> The 68k vector table seen by the 68k is selected by writing to {{Reg|REG_SWPROM}} (table from the game) or {{Reg|REG_SWPBIOS}} (table from the [[system ROM]]).<br /> <br /> A22Z and A23Z are used in place of A22 and A23 to make the address appear to address decoding chips as a system ROM access instead of a [[P ROM]] access.<br /> <br /> The {{Sig|VEC|VEC}} signal comes from the 74H259 system latch.<br /> <br /> *A Bios CRC Error could be a faulty NEO-E0<br /> <br /> {|class=&quot;wikitable&quot;<br /> !rowspan=2|Address||colspan=2|Maps to<br /> |-<br /> !VEC = 0||VEC = 1<br /> |-<br /> |$000000~$00007F||$C00000~$C0007F||$000000~$00007F<br /> |-<br /> |$000080~$BFFFFF||colspan=2|No change<br /> |-<br /> |$C00000~$C0007F||$000000~$00007F||$C00000~$C0007F<br /> |-<br /> |$C00080~$FFFFFF||colspan=2|No change<br /> |}<br /> <br /> Verilog from [[User:Kyuusaku]]:<br /> &lt;pre&gt;{A23Z,A22Z} = A[23:22] ^ 2{~|{A[21:7],^A[23:22],VEC}}&lt;/pre&gt;<br /> <br /> =Pinouts=<br /> <br /> ==Input to output map==<br /> <br /> * 64 -&gt; 5<br /> * 1 -&gt; 6<br /> * 2 -&gt; 7<br /> * 3 -&gt; 8<br /> * 4 -&gt; 9<br /> * 15 -&gt; 11<br /> * 16 -&gt; 12<br /> * 17 -&gt; 13<br /> * 18 -&gt; 14<br /> * 19 -&gt; 22<br /> * 20 -&gt; 23<br /> * 21 -&gt; 24<br /> * 31 -&gt; 27<br /> * 32 -&gt; 28<br /> * 33 -&gt; 29<br /> * 34 -&gt; 30<br /> * 36 -&gt; 39<br /> * 37 -&gt; 40<br /> * 38 -&gt; 41<br /> * 48 -&gt; 43<br /> * 49 -&gt; 44<br /> * 50 -&gt; 45<br /> * 51 -&gt; 46<br /> * 52 -&gt; 47<br /> * 53 -&gt; 55 if VEC is high<br /> * 54 -&gt; 56 if VEC is high<br /> <br /> ==Console==<br /> <br /> On the AES, the AND gate is used to make /SROMOE from (/SROMOEL AND /SROMOEU).<br /> <br /> ==MV2B &amp; MV2-01 @ H7 pinout==<br /> <br /> * 55 = sPCK1B<br /> * 56 = sPCK2B<br /> [[P_bus]] buffer<br /> <br /> ==MV2B @ G2 pinout==<br /> <br /> {|<br /> |<br /> [[File:Neo-e0_G2_pinout.png|512px]]<br /> <br /> OpenOffice Draw file: [[File:Neo-e0_mv2b_G2.odg]]<br /> |<br /> *A1~A23: [[68k]] address bus<br /> *MCA0~MCA23: [[memory card]] address bus<br /> *BNK0~BNK2: memory card banking from [[NEO-D0]]<br /> *VEC: [[System ROM]] vector table swapping enable<br /> |}<br /> <br /> ==MV2B @ F7 pinout==<br /> <br /> {|<br /> |<br /> [[File:Neo-e0_F7_pinout.png|512px]]<br /> <br /> OpenOffice Draw file: [[File:Neo-e0_mv2b_F7.odg]]<br /> |<br /> Acts just as a buffer.<br /> <br /> *s*: signals to both slots<br /> |}<br /> <br /> ==MV2F @ E1 pinout (to be confirmed) and AES==<br /> <br /> {|<br /> |<br /> [[File:Neo-e0_pinout.png|512px]]<br /> <br /> OpenOffice Draw file: [[File:neo-e0.odg]]<br /> |<br /> *A1~A23: 68k address bus<br /> *Y0~Y23: memory card address bus<br /> *BNK0~BNK2: comes from [[NEO-D0]], [[memory card]] bank<br /> *VEC: System ROM vector table swapping<br /> *ANI0, ANI1, AND0: AND gate used to generate ROMOE from (ROMOEU and ROMOEL)<br /> |}<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=9012 2025-11-01T07:36:33Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=9005 2025-09-28T07:56:47Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> Optical Laser Adjustment (Max value 20kΩ +/- 10%)<br /> <br /> Measured resistance: 3,5 kΩ<br /> <br /> unsold these 2 points to make them out of circuit<br /> <br /> [[File:CD Lens.jpeg]]<br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 12 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,25 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 46 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,8 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 49 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> In the following image, here are the two points where resistance measurements should be taken.<br /> unsold these 2 points (for each variable resistor)to make them out of circuit<br /> <br /> [[File:F3801AF.jpeg]]<br /> <br /> <br /> <br /> Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=9004 2025-09-28T07:47:03Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> Optical Lens Adjustment (Max value 20kΩ +/- 10%)<br /> <br /> Measured resistance: 3,5 kΩ<br /> <br /> unsold these 2 points to make them out of circuit<br /> <br /> [[File:CD Lens.jpeg]]<br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 12 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,25 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 46 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,8 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 49 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> In the following image, here are the two points where resistance measurements should be taken.<br /> unsold these 2 points (for each variable resistor)to make them out of circuit<br /> <br /> [[File:F3801AF.jpeg]]<br /> <br /> <br /> <br /> Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=9003 2025-09-28T07:39:57Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> Optical Lens Adjustment (Max value 20kΩ +/- 10%)<br /> <br /> Measured resistance: 3,5 kΩ<br /> <br /> unsold these 2 points to make them out of circuit<br /> <br /> [[File:CD Lens.jpeg]]<br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 12 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,25 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 46 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,8 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 49 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> In the following image, here are the two points where resistance measurements should be taken.<br /> [[File:F3801AF.jpeg]]<br /> <br /> <br /> <br /> Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=9002 2025-09-28T07:39:36Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> Optical Lens Adjustment (Max value 20kΩ +/- 10%)<br /> <br /> Measured resistance: 3,5 kΩ<br /> <br /> unsold these 2 points to make them out of circuit<br /> [[File:CD Lens.jpeg]]<br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 12 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,25 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 46 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,8 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 49 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> In the following image, here are the two points where resistance measurements should be taken.<br /> [[File:F3801AF.jpeg]]<br /> <br /> <br /> <br /> Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=9001 2025-09-28T07:34:59Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> Optical Lens Adjustment (Max value 20kΩ +/- 10%)<br /> <br /> Measured resistance: 3,5 kΩ<br /> <br /> [[File:CD Lens.jpeg]]<br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 12 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,25 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 46 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,8 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 49 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> In the following image, here are the two points where resistance measurements should be taken.<br /> [[File:F3801AF.jpeg]]<br /> <br /> <br /> <br /> Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=File:CD_Lens.jpeg&diff=9000 2025-09-28T07:33:51Z

<p>Illusionrip: </p> <hr /> <div></div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8999 2025-09-28T06:09:41Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 12 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,25 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 46 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,8 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 49 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> In the following image, here are the two points where resistance measurements should be taken.<br /> [[File:F3801AF.jpeg]]<br /> <br /> <br /> <br /> Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=File:F3801AF.jpeg&diff=8998 2025-09-28T06:06:53Z

<p>Illusionrip: F3801AF CD Controler</p> <hr /> <div>== Summary ==<br /> F3801AF CD Controler</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8997 2025-09-28T06:00:34Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 12 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,25 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 46 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,8 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 49 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> <br /> Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8996 2025-09-27T08:01:42Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 11,90 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,34 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 53 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 54 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> <br /> Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8995 2025-09-27T07:50:38Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 11,90 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,34 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 69 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 54 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> <br /> Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8994 2025-09-27T07:50:20Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 11,90 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,34 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 69 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 54 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8993 2025-09-27T07:50:02Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 11,90 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,34 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 69 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 54 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> *Big thanks to Domkid for letting me borrow his Neo CD!<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8992 2025-09-27T07:45:21Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 11,90 kΩ<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1,34 kΩ<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 69 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> Measured resistance: 1 kΩ<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 54 kΩ<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8991 2025-09-27T07:38:20Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset (Max value 100kΩ +/- 10%)<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ +/- 10%)<br /> <br /> Measured resistance: 69 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ +/- 10%)<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ +/- 10%)<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8990 2025-09-27T07:37:13Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset (Max value 100kΩ)<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ)<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ)<br /> <br /> Measured resistance: 69 kΩ<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ)<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ)<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8988 2025-09-26T14:26:44Z

<p>Illusionrip: /* CONNECTIONS (French) */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> For 3.3--&gt; 3.6 Neo Geo Board Version<br /> <br /> {| class=&quot;wikitable&quot;<br /> ! SCHEM !! PIN !! M68 000 !! NEO-E0 !! NEO- B1 !! REAR SLOT !! FRONT SLOT !! Work RAM1 !! Work RAM2 !! NEO- GO !! 74H C04 !! CRE 401 /5 !! CRE 401 /4 !! CRE 401 /3 !! CRE 401 /2 !! CRE 401 /1 !! LSPC- A2 !! NEO- DO !! Z80 !! HM 6116 !! YM 2610 !! 74HC 259 !! NEO- PO !! CARD IC !! 74HC 32<br /> |-<br /> | DIPRD0 || 1 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DIPRD1 || 2 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VCC || 3 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 4 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEU || 5 || || || || 21A || || || || 60 || || || || || || || || || || || || || || || <br /> |-<br /> | WRU || 6 || || || || || || 22 || || || || || || || || || || || || || || || || || <br /> |-<br /> | WWU || 7 || || || || || || 27 || || || || || || || || || || || || || || || || || <br /> |-<br /> | LSPOE || 8 || || || || || || || || || || || || || || || 172 || || || || || || || || <br /> |-<br /> | LSPWE || 9 || || || || || || || || || || || || || || || 173 || || || || || || || || <br /> |-<br /> | PORTOEU || 10 || || || || 28A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEU || 11 || || || || 30A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEU || 12 || || 60 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEU || 13 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEU || 14 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 15 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PAL || 16 || || || || || || || || 39 || || || || || || || || || || || || || || || <br /> |-<br /> | VPA || 17 || 21 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PADRS || 18 || || || || 48A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DTACK || 19 || 10 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A17 || 20 || 45 || 36 || 112 || 19B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A18 || 21 || 46 || 37 || 113 || 20B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A19 || 22 || 47 || 38 || 114 || 21B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A20 || 23 || 48 || 48 || 115 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A21 || 24 || 50 || 49 || 116 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A22I || 25 || || 55 || 117 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A23I || 26 || || 54 || 118 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDC || 27 || || || || || || || || || || || || || || || || || || || || || || 7 &amp; 42 || <br /> |-<br /> | VCC || 28 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDW || 29 || || || || || || || || || || || || || || || || 33 || || || || || || || <br /> |-<br /> | CRDO || 30 || || || || || || || || || || || || || || || || || || || || || || 9 || <br /> |-<br /> | CRDW || 31 || || || || || || || || || || || || || || || || || || || || || || || 5<br /> |-<br /> | RW || 32 || 9 || || 91 || 19A || || || || 40/52 || || || || || || || || || || || || || || || <br /> |-<br /> | UDS || 33 || 7 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | LDS || 34 || 8 || || 89 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | AS || 35 || 6 || || 88 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | 68KCLC || 36 || 15 || || || || || || || || || || || || || || || 22 || || || || || || || <br /> |-<br /> | ROMWAIT || 37 || || || || 28B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT0 || 38 || || || || 30B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT1 || 39 || || || || 31B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 40 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PDTACK || 41 || || || || 29B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN00 || 42 || || || || || || || || || || 3 || || || || || || || || || || || || || <br /> |-<br /> | INO1 || 43 || || || || || || || || || || 5 || || || || || || || || || || || || || <br /> |-<br /> | IN02 || 44 || || || || || || || || || || 7 || || || || || || || || || || || || || <br /> |-<br /> | IN03 || 45 || || || || || || || || || || 9 || || || || || || || || || || || || || <br /> |-<br /> | IN04 || 46 || || || || || || || || || || || 3 || || || || || || || || || || || || <br /> |-<br /> | IN05 || 47 || || || || || || || || || || || 5 || || || || || || || || || || || || <br /> |-<br /> | IN06 || 48 || || || || || || || || || || || 7 || || || || || || || || || || || || <br /> |-<br /> | D8 || 49 || 61 || || || 11A || || 11 || || 31 || || || || || || || 13 || || || || || || 10 || || <br /> |-<br /> | D9 || 50 || 60 || || || 12A || || 12 || || 32 || || || || || || || 14 || || || || || || 9 || || <br /> |-<br /> | D10 || 51 || 59 || || || 13A || || 13 || || 33 || || || || || || || 15 || || || || || || 8 || || <br /> |-<br /> | D11 || 52 || 58 || || || 14A || || 15 || || 34 || || || || || || || 16 || || || || || || 7 || || <br /> |-<br /> | VCC || 53 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 54 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | D12 || 55 || 57 || || || 15A || || 16 || || 47 || || || || || || || 18 || || || || || || 6 || || <br /> |-<br /> | D13 || 56 || 56 || || || 16A || || 17 || || 48 || || || || || || || 19 || || || || || || 5 || || <br /> |-<br /> | D14 || 57 || 55 || || || 17A || || 18 || || 49 || || || || || || || 20 || || || || || || 4 || || <br /> |-<br /> | D15 || 58 || 54 || || || 18A || || 19 || || 50 || || || || || || || 21 || || || || || || 3 || || <br /> |-<br /> | IN07 || 59 || || || || || || || || || || || 9 || || || || || || || || || || || || <br /> |-<br /> | IN10 || 60 || || || || || || || || || || || || 7 || || || || || || || || || || || <br /> |-<br /> | IN11 || 61 || || || || || || || || || || || || 9 || || || || || || || || || || || <br /> |-<br /> | IN12 || 62 || || || || || || || || || || || || || 3 || || || || || || || || || || <br /> |-<br /> | IN13 || 63 || || || || || || || || || || || || || 5 || || || || || || || || || || <br /> |-<br /> | IN14 || 64 || || || || || || || || || || || || || 7 || || || || || || || || || || <br /> |-<br /> | GND || 65 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN15 || 66 || || || || || || || || || || || || || 9 || || || || || || || || || || <br /> |-<br /> | IN16 || 67 || || || || || || || || || || || || || || 3 || || || || || || || || || <br /> |-<br /> | IN17 || 68 || || || || || || || || || || || || || || 5 || || || || || || || || || <br /> |-<br /> | IN20 || 69 || || || || || || || || || || || || 3 || || || || || || || || || || || <br /> |-<br /> | IN21 || 70 || || || || || || || || || || || || 5 || || || || || || || || || || || <br /> |-<br /> | IN22 || 71 || || || || || || || || || || || || || || 7 || || || || || || || || || <br /> |-<br /> | IN23 || 72 || || || || || || || || || || || || || || 9 || || || || || || || || || <br /> |-<br /> | IN24 || 73 || || || || || || || || || || || || || || || || || || || || || || 36 || <br /> |-<br /> | SDD0 || 74 || || || || || 40B || || || || || || || || || || || || 14 || 9 || 2 || || || || <br /> |-<br /> | SDD1 || 75 || || || || || 41B || || || || || || || || || || || || 15 || 10 || 3 || || || || <br /> |-<br /> | SDD2 || 76 || || || || || 42B || || || || || || || || || || || || 12 || 11 || 4 || || || || <br /> |-<br /> | SDD3 || 77 || || || || || 43B || || || || || || || || || || || || 8 || 13 || 5 || || || || <br /> |-<br /> | VCC || 78 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 79 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDD4 || 80 || || || || || 44B || || || || || || || || || || || || 7 || 14 || 6 || || || || <br /> |-<br /> | SDD5 || 81 || || || || || 45B || || || || || || || || || || || || 9 || 15 || 7 || || || || <br /> |-<br /> | SDD6 || 82 || || || || || 46B || || || || || || || || || || || || 10 || 16 || 8 || || || || <br /> |-<br /> | SDD7 || 83 || || || || || 47B || || || || || || || || || || || || 13 || 17 || 9 || || || || <br /> |-<br /> | SDZ80R || 84 || || || || || || || || || || || || || || || || 41 || || || || || || || <br /> |-<br /> | SDZ80W || 85 || || || || || || || || || || || || || || || || 43 || || || || || || || <br /> |-<br /> | SDZ80CLR || 86 || || || || || || || || || || || || || || || || 44 || || || || || || || <br /> |-<br /> | IN25 || 87 || || || || || || || || || || || || || || || || || || || || || || 67 || <br /> |-<br /> | IN26 || 88 || || || || || || || || || || || || || || || || || || || || || || 33 || <br /> |-<br /> | IN27 || 89 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 90 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEL || 91 || || || || 22A || || || || 61 || || || || || || || || || || || || || || || <br /> |-<br /> | WRL || 92 || || || || || || || 22 || || || || || || || || || || || || || || || || <br /> |-<br /> | WWL || 93 || || || || || || || 27 || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTOEL || 94 || || || || 29A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEL || 95 || || || || 31A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEL || 96 || || 61 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEL || 97 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEL || 98 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | BITWO || 99 || || || || || || || || || || || || || || || || 60 || || || || || || || <br /> |-<br /> | BITW1 || 100 || || || || || || || || || || || || || || || || || || || || 14 || || || <br /> |-<br /> |}<br /> <br /> *Headaches and loss of a tenth of vision by Illusionrip<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8987 2025-09-26T14:03:54Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset (Max value 100kΩ)<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain (Max value 4,7kΩ)<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance (Max value 100kΩ)<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain (Max value 4,7kΩ)<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset (Max value 100kΩ)<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8986 2025-09-26T13:53:20Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 4 pF<br /> | <br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1 uF<br /> | <br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8985 2025-09-26T09:00:54Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB CD Controller Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8984 2025-09-26T08:56:33Z

<p>Illusionrip: /* CONNECTIONS (French) */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> {| class=&quot;wikitable&quot;<br /> ! SCHEM !! PIN !! M68 000 !! NEO-E0 !! NEO- B1 !! REAR SLOT !! FRONT SLOT !! Work RAM1 !! Work RAM2 !! NEO- GO !! 74H C04 !! CRE 401 /5 !! CRE 401 /4 !! CRE 401 /3 !! CRE 401 /2 !! CRE 401 /1 !! LSPC- A2 !! NEO- DO !! Z80 !! HM 6116 !! YM 2610 !! 74HC 259 !! NEO- PO !! CARD IC !! 74HC 32<br /> |-<br /> | DIPRD0 || 1 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DIPRD1 || 2 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VCC || 3 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 4 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEU || 5 || || || || 21A || || || || 60 || || || || || || || || || || || || || || || <br /> |-<br /> | WRU || 6 || || || || || || 22 || || || || || || || || || || || || || || || || || <br /> |-<br /> | WWU || 7 || || || || || || 27 || || || || || || || || || || || || || || || || || <br /> |-<br /> | LSPOE || 8 || || || || || || || || || || || || || || || 172 || || || || || || || || <br /> |-<br /> | LSPWE || 9 || || || || || || || || || || || || || || || 173 || || || || || || || || <br /> |-<br /> | PORTOEU || 10 || || || || 28A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEU || 11 || || || || 30A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEU || 12 || || 60 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEU || 13 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEU || 14 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 15 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PAL || 16 || || || || || || || || 39 || || || || || || || || || || || || || || || <br /> |-<br /> | VPA || 17 || 21 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PADRS || 18 || || || || 48A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DTACK || 19 || 10 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A17 || 20 || 45 || 36 || 112 || 19B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A18 || 21 || 46 || 37 || 113 || 20B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A19 || 22 || 47 || 38 || 114 || 21B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A20 || 23 || 48 || 48 || 115 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A21 || 24 || 50 || 49 || 116 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A22I || 25 || || 55 || 117 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A23I || 26 || || 54 || 118 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDC || 27 || || || || || || || || || || || || || || || || || || || || || || 7 &amp; 42 || <br /> |-<br /> | VCC || 28 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDW || 29 || || || || || || || || || || || || || || || || 33 || || || || || || || <br /> |-<br /> | CRDO || 30 || || || || || || || || || || || || || || || || || || || || || || 9 || <br /> |-<br /> | CRDW || 31 || || || || || || || || || || || || || || || || || || || || || || || 5<br /> |-<br /> | RW || 32 || 9 || || 91 || 19A || || || || 40/52 || || || || || || || || || || || || || || || <br /> |-<br /> | UDS || 33 || 7 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | LDS || 34 || 8 || || 89 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | AS || 35 || 6 || || 88 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | 68KCLC || 36 || 15 || || || || || || || || || || || || || || || 22 || || || || || || || <br /> |-<br /> | ROMWAIT || 37 || || || || 28B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT0 || 38 || || || || 30B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT1 || 39 || || || || 31B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 40 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PDTACK || 41 || || || || 29B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN00 || 42 || || || || || || || || || || 3 || || || || || || || || || || || || || <br /> |-<br /> | INO1 || 43 || || || || || || || || || || 5 || || || || || || || || || || || || || <br /> |-<br /> | IN02 || 44 || || || || || || || || || || 7 || || || || || || || || || || || || || <br /> |-<br /> | IN03 || 45 || || || || || || || || || || 9 || || || || || || || || || || || || || <br /> |-<br /> | IN04 || 46 || || || || || || || || || || || 3 || || || || || || || || || || || || <br /> |-<br /> | IN05 || 47 || || || || || || || || || || || 5 || || || || || || || || || || || || <br /> |-<br /> | IN06 || 48 || || || || || || || || || || || 7 || || || || || || || || || || || || <br /> |-<br /> | D8 || 49 || 61 || || || 11A || || 11 || || 31 || || || || || || || 13 || || || || || || 10 || || <br /> |-<br /> | D9 || 50 || 60 || || || 12A || || 12 || || 32 || || || || || || || 14 || || || || || || 9 || || <br /> |-<br /> | D10 || 51 || 59 || || || 13A || || 13 || || 33 || || || || || || || 15 || || || || || || 8 || || <br /> |-<br /> | D11 || 52 || 58 || || || 14A || || 15 || || 34 || || || || || || || 16 || || || || || || 7 || || <br /> |-<br /> | VCC || 53 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 54 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | D12 || 55 || 57 || || || 15A || || 16 || || 47 || || || || || || || 18 || || || || || || 6 || || <br /> |-<br /> | D13 || 56 || 56 || || || 16A || || 17 || || 48 || || || || || || || 19 || || || || || || 5 || || <br /> |-<br /> | D14 || 57 || 55 || || || 17A || || 18 || || 49 || || || || || || || 20 || || || || || || 4 || || <br /> |-<br /> | D15 || 58 || 54 || || || 18A || || 19 || || 50 || || || || || || || 21 || || || || || || 3 || || <br /> |-<br /> | IN07 || 59 || || || || || || || || || || || 9 || || || || || || || || || || || || <br /> |-<br /> | IN10 || 60 || || || || || || || || || || || || 7 || || || || || || || || || || || <br /> |-<br /> | IN11 || 61 || || || || || || || || || || || || 9 || || || || || || || || || || || <br /> |-<br /> | IN12 || 62 || || || || || || || || || || || || || 3 || || || || || || || || || || <br /> |-<br /> | IN13 || 63 || || || || || || || || || || || || || 5 || || || || || || || || || || <br /> |-<br /> | IN14 || 64 || || || || || || || || || || || || || 7 || || || || || || || || || || <br /> |-<br /> | GND || 65 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN15 || 66 || || || || || || || || || || || || || 9 || || || || || || || || || || <br /> |-<br /> | IN16 || 67 || || || || || || || || || || || || || || 3 || || || || || || || || || <br /> |-<br /> | IN17 || 68 || || || || || || || || || || || || || || 5 || || || || || || || || || <br /> |-<br /> | IN20 || 69 || || || || || || || || || || || || 3 || || || || || || || || || || || <br /> |-<br /> | IN21 || 70 || || || || || || || || || || || || 5 || || || || || || || || || || || <br /> |-<br /> | IN22 || 71 || || || || || || || || || || || || || || 7 || || || || || || || || || <br /> |-<br /> | IN23 || 72 || || || || || || || || || || || || || || 9 || || || || || || || || || <br /> |-<br /> | IN24 || 73 || || || || || || || || || || || || || || || || || || || || || || 36 || <br /> |-<br /> | SDD0 || 74 || || || || || 40B || || || || || || || || || || || || 14 || 9 || 2 || || || || <br /> |-<br /> | SDD1 || 75 || || || || || 41B || || || || || || || || || || || || 15 || 10 || 3 || || || || <br /> |-<br /> | SDD2 || 76 || || || || || 42B || || || || || || || || || || || || 12 || 11 || 4 || || || || <br /> |-<br /> | SDD3 || 77 || || || || || 43B || || || || || || || || || || || || 8 || 13 || 5 || || || || <br /> |-<br /> | VCC || 78 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 79 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDD4 || 80 || || || || || 44B || || || || || || || || || || || || 7 || 14 || 6 || || || || <br /> |-<br /> | SDD5 || 81 || || || || || 45B || || || || || || || || || || || || 9 || 15 || 7 || || || || <br /> |-<br /> | SDD6 || 82 || || || || || 46B || || || || || || || || || || || || 10 || 16 || 8 || || || || <br /> |-<br /> | SDD7 || 83 || || || || || 47B || || || || || || || || || || || || 13 || 17 || 9 || || || || <br /> |-<br /> | SDZ80R || 84 || || || || || || || || || || || || || || || || 41 || || || || || || || <br /> |-<br /> | SDZ80W || 85 || || || || || || || || || || || || || || || || 43 || || || || || || || <br /> |-<br /> | SDZ80CLR || 86 || || || || || || || || || || || || || || || || 44 || || || || || || || <br /> |-<br /> | IN25 || 87 || || || || || || || || || || || || || || || || || || || || || || 67 || <br /> |-<br /> | IN26 || 88 || || || || || || || || || || || || || || || || || || || || || || 33 || <br /> |-<br /> | IN27 || 89 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 90 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEL || 91 || || || || 22A || || || || 61 || || || || || || || || || || || || || || || <br /> |-<br /> | WRL || 92 || || || || || || || 22 || || || || || || || || || || || || || || || || <br /> |-<br /> | WWL || 93 || || || || || || || 27 || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTOEL || 94 || || || || 29A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEL || 95 || || || || 31A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEL || 96 || || 61 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEL || 97 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEL || 98 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | BITWO || 99 || || || || || || || || || || || || || || || || 60 || || || || || || || <br /> |-<br /> | BITW1 || 100 || || || || || || || || || || || || || || || || || || || || 14 || || || <br /> |-<br /> |}<br /> <br /> *Headaches and loss of a tenth of vision by Illusionrip<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8983 2025-09-26T08:19:53Z

<p>Illusionrip: /* CONNECTIONS (French) */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> {| class=&quot;wikitable&quot;<br /> ! SCHEM !! PIN !! M68 000 !! NEO-E0 !! NEO- B1 !! REAR SLOT !! FRONT SLOT !! Work RAM1 !! Work RAM2 !! NEO- GO !! 74H C04 !! CRE 401 /5 !! CRE 401 /4 !! CRE 401 /3 !! CRE 401 /2 !! CRE 401 /1 !! LSPC- A2 !! NEO- DO !! Z80 !! HM 6116 !! YM 2610 !! 74HC 259 !! NEO- PO !! CARD IC !! 74HC 32<br /> |-<br /> | DIPRD0 || 1 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DIPRD1 || 2 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VCC || 3 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 4 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEU || 5 || || || || 21A || || || || 60 || || || || || || || || || || || || || || || <br /> |-<br /> | WRU || 6 || || || || || || 22 || || || || || || || || || || || || || || || || || <br /> |-<br /> | WWU || 7 || || || || || || 27 || || || || || || || || || || || || || || || || || <br /> |-<br /> | LSPOE || 8 || || || || || || || || || || || || || || || 172 || || || || || || || || <br /> |-<br /> | LSPWE || 9 || || || || || || || || || || || || || || || 173 || || || || || || || || <br /> |-<br /> | PORTOEU || 10 || || || || 28A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEU || 11 || || || || 30A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEU || 12 || || 60 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEU || 13 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEU || 14 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 15 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PAL || 16 || || || || || || || || 39 || || || || || || || || || || || || || || || <br /> |-<br /> | VPA || 17 || 21 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PADRS || 18 || || || || 48A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DTACK || 19 || 10 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A17 || 20 || 45 || 36 || 112 || 19B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A18 || 21 || 46 || 37 || 113 || 20B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A19 || 22 || 47 || 38 || 114 || 21B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A20 || 23 || 48 || 48 || 115 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A21 || 24 || 50 || 49 || 116 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A22I || 25 || || 55 || 117 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A23I || 26 || || 54 || 118 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDC || 27 || || || || || || || || || || || || || || || || || || || || || || 7 &amp; 42 || <br /> |-<br /> | VCC || 28 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDW || 29 || || || || || || || || || || || || || || || || 33 || || || || || || || <br /> |-<br /> | CRDO || 30 || || || || || || || || || || || || || || || || || || || || || || 9 || <br /> |-<br /> | CRDW || 31 || || || || || || || || || || || || || || || || || || || || || || || 5<br /> |-<br /> | RW || 32 || 9 || || 91 || 19A || || || || 40/52 || || || || || || || || || || || || || || || <br /> |-<br /> | UDS || 33 || 7 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | LDS || 34 || 8 || || 89 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | AS || 35 || 6 || || 88 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | 68KCLC || 36 || 15 || || || || || || || || || || || || || || || 22 || || || || || || || <br /> |-<br /> | ROMWAIT || 37 || || || || 28B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT0 || 38 || || || || 30B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT1 || 39 || || || || 31B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 40 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PDTACK || 41 || || || || 29B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN00 || 42 || || || || || || || || || || 3 || || || || || || || || || || || || || <br /> |-<br /> | INO1 || 43 || || || || || || || || || || 5 || || || || || || || || || || || || || <br /> |-<br /> | IN02 || 44 || || || || || || || || || || 7 || || || || || || || || || || || || || <br /> |-<br /> | IN03 || 45 || || || || || || || || || || 9 || || || || || || || || || || || || || <br /> |-<br /> | IN04 || 46 || || || || || || || || || || || 3 || || || || || || || || || || || || <br /> |-<br /> | IN05 || 47 || || || || || || || || || || || 5 || || || || || || || || || || || || <br /> |-<br /> | IN06 || 48 || || || || || || || || || || || 7 || || || || || || || || || || || || <br /> |-<br /> | D8 || 49 || 61 || || || 11A || || 11 || || 31 || || || || || || || 13 || || || || || || 10 || || <br /> |-<br /> | D9 || 50 || 60 || || || 12A || || 12 || || 32 || || || || || || || 14 || || || || || || 9 || || <br /> |-<br /> | D10 || 51 || 59 || || || 13A || || 13 || || 33 || || || || || || || 15 || || || || || || 8 || || <br /> |-<br /> | D11 || 52 || 58 || || || 14A || || 15 || || 34 || || || || || || || 16 || || || || || || 7 || || <br /> |-<br /> | VCC || 53 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 54 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | D12 || 55 || 57 || || || 15A || || 16 || || 47 || || || || || || || 18 || || || || || || 6 || || <br /> |-<br /> | D13 || 56 || 56 || || || 16A || || 17 || || 48 || || || || || || || 19 || || || || || || 5 || || <br /> |-<br /> | D14 || 57 || 55 || || || 17A || || 18 || || 49 || || || || || || || 20 || || || || || || 4 || || <br /> |-<br /> | D15 || 58 || 54 || || || 18A || || 19 || || 50 || || || || || || || 21 || || || || || || 3 || || <br /> |-<br /> | IN07 || 59 || || || || || || || || || || || 9 || || || || || || || || || || || || <br /> |-<br /> | IN10 || 60 || || || || || || || || || || || || 7 || || || || || || || || || || || <br /> |-<br /> | IN11 || 61 || || || || || || || || || || || || 9 || || || || || || || || || || || <br /> |-<br /> | IN12 || 62 || || || || || || || || || || || || || 3 || || || || || || || || || || <br /> |-<br /> | IN13 || 63 || || || || || || || || || || || || || 5 || || || || || || || || || || <br /> |-<br /> | IN14 || 64 || || || || || || || || || || || || || 7 || || || || || || || || || || <br /> |-<br /> | GND || 65 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN15 || 66 || || || || || || || || || || || || || 9 || || || || || || || || || || <br /> |-<br /> | IN16 || 67 || || || || || || || || || || || || || || 3 || || || || || || || || || <br /> |-<br /> | IN17 || 68 || || || || || || || || || || || || || || 5 || || || || || || || || || <br /> |-<br /> | IN20 || 69 || || || || || || || || || || || || 3 || || || || || || || || || || || <br /> |-<br /> | IN21 || 70 || || || || || || || || || || || || 5 || || || || || || || || || || || <br /> |-<br /> | IN22 || 71 || || || || || || || || || || || || || || 7 || || || || || || || || || <br /> |-<br /> | IN23 || 72 || || || || || || || || || || || || || || 9 || || || || || || || || || <br /> |-<br /> | IN24 || 73 || || || || || || || || || || || || || || || || || || || || || || 36 || <br /> |-<br /> | SDD0 || 74 || || || || || 40B || || || || || || || || || || || || 14 || 9 || 2 || || || || <br /> |-<br /> | SDD1 || 75 || || || || || 41B || || || || || || || || || || || || 15 || 10 || 3 || || || || <br /> |-<br /> | SDD2 || 76 || || || || || 42B || || || || || || || || || || || || 12 || 11 || 4 || || || || <br /> |-<br /> | SDD3 || 77 || || || || || 43B || || || || || || || || || || || || 8 || 13 || 5 || || || || <br /> |-<br /> | VCC || 78 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 79 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDD4 || 80 || || || || || 44B || || || || || || || || || || || || 7 || 14 || 6 || || || || <br /> |-<br /> | SDD5 || 81 || || || || || 45B || || || || || || || || || || || || 9 || 15 || 7 || || || || <br /> |-<br /> | SDD6 || 82 || || || || || 46B || || || || || || || || || || || || 10 || 16 || 8 || || || || <br /> |-<br /> | SDD7 || 83 || || || || || 47B || || || || || || || || || || || || 13 || 17 || 9 || || || || <br /> |-<br /> | SDZ80R || 84 || || || || || || || || || || || || || || || || 41 || || || || || || || <br /> |-<br /> | SDZ80W || 85 || || || || || || || || || || || || || || || || 43 || || || || || || || <br /> |-<br /> | SDZ80CLR || 86 || || || || || || || || || || || || || || || || 44 || || || || || || || <br /> |-<br /> | IN25 || 87 || || || || || || || || || || || || || || || || || || || || || || 67 || <br /> |-<br /> | IN26 || 88 || || || || || || || || || || || || || || || || || || || || || || 33 || <br /> |-<br /> | IN27 || 89 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 90 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEL || 91 || || || || 22A || || || || 61 || || || || || || || || || || || || || || || <br /> |-<br /> | WRL || 92 || || || || || || || 22 || || || || || || || || || || || || || || || || <br /> |-<br /> | WWL || 93 || || || || || || || 27 || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTOEL || 94 || || || || 29A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEL || 95 || || || || 31A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEL || 96 || || 61 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEL || 97 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEL || 98 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | BITWO || 99 || || || || || || || || || || || || || || || || 60 || || || || || || || <br /> |-<br /> | BITW1 || 100 || || || || || || || || || || || || || || || || || || || || 14 || || || <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8982 2025-09-26T07:51:44Z

<p>Illusionrip: /* CONNECTIONS (French) */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> {| class=&quot;wikitable&quot;<br /> ! SCHEM !! PIN !! M68000 !! NEO-E0 !! NEO-B1 !! REAR SLOT !! FRONT SLOT !! WRAM1 !! WRAM2 !! NEO-GO !! 74HC04 !! CRE401/5 !! CRE401/4 !! CRE401/3 !! CRE401/2 !! CRE401/1 !! LSPC-A2 !! NEO-DO !! Z80 !! HM6116 !! YM2610 !! 74HC259 !! NEO-PO !! CARD IC !! 74HC32<br /> |-<br /> | DIPRD0 || 1 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DIPRD1 || 2 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VCC || 3 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 4 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEU || 5 || || || || 21A || || || || 60 || || || || || || || || || || || || || || || <br /> |-<br /> | WRU || 6 || || || || || || 22 || || || || || || || || || || || || || || || || || <br /> |-<br /> | WWU || 7 || || || || || || 27 || || || || || || || || || || || || || || || || || <br /> |-<br /> | LSPOE || 8 || || || || || || || || || || || || || || || 172 || || || || || || || || <br /> |-<br /> | LSPWE || 9 || || || || || || || || || || || || || || || 173 || || || || || || || || <br /> |-<br /> | PORTOEU || 10 || || || || 28A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEU || 11 || || || || 30A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEU || 12 || || 60 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEU || 13 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEU || 14 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 15 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PAL || 16 || || || || || || || || 39 || || || || || || || || || || || || || || || <br /> |-<br /> | VPA || 17 || 21 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PADRS || 18 || || || || 48A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DTACK || 19 || 10 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A17 || 20 || 45 || 36 || 112 || 19B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A18 || 21 || 46 || 37 || 113 || 20B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A19 || 22 || 47 || 38 || 114 || 21B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A20 || 23 || 48 || 48 || 115 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A21 || 24 || 50 || 49 || 116 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A22I || 25 || || 55 || 117 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A23I || 26 || || 54 || 118 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDC || 27 || || || || || || || || || || || || || || || || || || || || || || 7 &amp; 42 || <br /> |-<br /> | VCC || 28 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDW || 29 || || || || || || || || || || || || || || || || 33 || || || || || || || <br /> |-<br /> | CRDO || 30 || || || || || || || || || || || || || || || || || || || || || || 9 || <br /> |-<br /> | CRDW || 31 || || || || || || || || || || || || || || || || || || || || || || || 5<br /> |-<br /> | RW || 32 || 9 || || 91 || 19A || || || || 40/52 || || || || || || || || || || || || || || || <br /> |-<br /> | UDS || 33 || 7 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | LDS || 34 || 8 || || 89 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | AS || 35 || 6 || || 88 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | 68KCLC || 36 || 15 || || || || || || || || || || || || || || || 22 || || || || || || || <br /> |-<br /> | ROMWAIT || 37 || || || || 28B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT0 || 38 || || || || 30B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT1 || 39 || || || || 31B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 40 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PDTACK || 41 || || || || 29B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN00 || 42 || || || || || || || || || || 3 || || || || || || || || || || || || || <br /> |-<br /> | INO1 || 43 || || || || || || || || || || 5 || || || || || || || || || || || || || <br /> |-<br /> | IN02 || 44 || || || || || || || || || || 7 || || || || || || || || || || || || || <br /> |-<br /> | IN03 || 45 || || || || || || || || || || 9 || || || || || || || || || || || || || <br /> |-<br /> | IN04 || 46 || || || || || || || || || || || 3 || || || || || || || || || || || || <br /> |-<br /> | IN05 || 47 || || || || || || || || || || || 5 || || || || || || || || || || || || <br /> |-<br /> | IN06 || 48 || || || || || || || || || || || 7 || || || || || || || || || || || || <br /> |-<br /> | D8 || 49 || 61 || || || 11A || || 11 || || 31 || || || || || || || 13 || || || || || || 10 || || <br /> |-<br /> | D9 || 50 || 60 || || || 12A || || 12 || || 32 || || || || || || || 14 || || || || || || 9 || || <br /> |-<br /> | D10 || 51 || 59 || || || 13A || || 13 || || 33 || || || || || || || 15 || || || || || || 8 || || <br /> |-<br /> | D11 || 52 || 58 || || || 14A || || 15 || || 34 || || || || || || || 16 || || || || || || 7 || || <br /> |-<br /> | VCC || 53 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 54 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | D12 || 55 || 57 || || || 15A || || 16 || || 47 || || || || || || || 18 || || || || || || 6 || || <br /> |-<br /> | D13 || 56 || 56 || || || 16A || || 17 || || 48 || || || || || || || 19 || || || || || || 5 || || <br /> |-<br /> | D14 || 57 || 55 || || || 17A || || 18 || || 49 || || || || || || || 20 || || || || || || 4 || || <br /> |-<br /> | D15 || 58 || 54 || || || 18A || || 19 || || 50 || || || || || || || 21 || || || || || || 3 || || <br /> |-<br /> | IN07 || 59 || || || || || || || || || || || 9 || || || || || || || || || || || || <br /> |-<br /> | IN10 || 60 || || || || || || || || || || || || 7 || || || || || || || || || || || <br /> |-<br /> | IN11 || 61 || || || || || || || || || || || || 9 || || || || || || || || || || || <br /> |-<br /> | IN12 || 62 || || || || || || || || || || || || || 3 || || || || || || || || || || <br /> |-<br /> | IN13 || 63 || || || || || || || || || || || || || 5 || || || || || || || || || || <br /> |-<br /> | IN14 || 64 || || || || || || || || || || || || || 7 || || || || || || || || || || <br /> |-<br /> | GND || 65 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN15 || 66 || || || || || || || || || || || || || 9 || || || || || || || || || || <br /> |-<br /> | IN16 || 67 || || || || || || || || || || || || || || 3 || || || || || || || || || <br /> |-<br /> | IN17 || 68 || || || || || || || || || || || || || || 5 || || || || || || || || || <br /> |-<br /> | IN20 || 69 || || || || || || || || || || || || 3 || || || || || || || || || || || <br /> |-<br /> | IN21 || 70 || || || || || || || || || || || || 5 || || || || || || || || || || || <br /> |-<br /> | IN22 || 71 || || || || || || || || || || || || || || 7 || || || || || || || || || <br /> |-<br /> | IN23 || 72 || || || || || || || || || || || || || || 9 || || || || || || || || || <br /> |-<br /> | IN24 || 73 || || || || || || || || || || || || || || || || || || || || || || 36 || <br /> |-<br /> | SDD0 || 74 || || || || || 40B || || || || || || || || || || || || 14 || 9 || 2 || || || || <br /> |-<br /> | SDD1 || 75 || || || || || 41B || || || || || || || || || || || || 15 || 10 || 3 || || || || <br /> |-<br /> | SDD2 || 76 || || || || || 42B || || || || || || || || || || || || 12 || 11 || 4 || || || || <br /> |-<br /> | SDD3 || 77 || || || || || 43B || || || || || || || || || || || || 8 || 13 || 5 || || || || <br /> |-<br /> | VCC || 78 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 79 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDD4 || 80 || || || || || 44B || || || || || || || || || || || || 7 || 14 || 6 || || || || <br /> |-<br /> | SDD5 || 81 || || || || || 45B || || || || || || || || || || || || 9 || 15 || 7 || || || || <br /> |-<br /> | SDD6 || 82 || || || || || 46B || || || || || || || || || || || || 10 || 16 || 8 || || || || <br /> |-<br /> | SDD7 || 83 || || || || || 47B || || || || || || || || || || || || 13 || 17 || 9 || || || || <br /> |-<br /> | SDZ80R || 84 || || || || || || || || || || || || || || || || 41 || || || || || || || <br /> |-<br /> | SDZ80W || 85 || || || || || || || || || || || || || || || || 43 || || || || || || || <br /> |-<br /> | SDZ80CLR || 86 || || || || || || || || || || || || || || || || 44 || || || || || || || <br /> |-<br /> | IN25 || 87 || || || || || || || || || || || || || || || || || || || || || || 67 || <br /> |-<br /> | IN26 || 88 || || || || || || || || || || || || || || || || || || || || || || 33 || <br /> |-<br /> | IN27 || 89 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 90 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEL || 91 || || || || 22A || || || || 61 || || || || || || || || || || || || || || || <br /> |-<br /> | WRL || 92 || || || || || || || 22 || || || || || || || || || || || || || || || || <br /> |-<br /> | WWL || 93 || || || || || || || 27 || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTOEL || 94 || || || || 29A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEL || 95 || || || || 31A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEL || 96 || || 61 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEL || 97 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEL || 98 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | BITWO || 99 || || || || || || || || || || || || || || || || 60 || || || || || || || <br /> |-<br /> | BITW1 || 100 || || || || || || || || || || || || || || || || || || || || 14 || || || <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8981 2025-09-26T07:44:38Z

<p>Illusionrip: /* CONNECTIONS (French) */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''SCHEM'''<br /> |'''PIN'''<br /> |'''M68000'''<br /> |'''NEO-E0'''<br /> |'''NEO-B1'''<br /> |'''REAR SLOT'''<br /> |'''FRONT SLOT'''<br /> |'''WRAM1'''<br /> |'''WRAM2'''<br /> |'''NEO-G0'''<br /> |'''74HC04'''<br /> |'''CRE401/5'''<br /> |'''CRE401/4'''<br /> |'''CRE401/3'''<br /> |'''CRE401/2'''<br /> |'''CRE401/1'''<br /> |'''LSPC-A2'''<br /> |'''NEO-DO'''<br /> |'''Z80'''<br /> |'''HM6116'''<br /> |'''YM2610'''<br /> |'''74HC259'''<br /> |'''NEO-PO'''<br /> |'''CARD IC'''<br /> |'''74HC32'''<br /> |-<br /> | DIPRD0<br /> | 1<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | DIPRD1<br /> | 2<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | VCC<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | NC<br /> | 4<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | ROMOEU<br /> | 5<br /> |<br /> |<br /> |<br /> | 21A<br /> | 60<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | WRU<br /> | 6<br /> |<br /> |<br /> |<br /> | 22<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | WWU<br /> | 7<br /> |<br /> |<br /> |<br /> | 27<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | LSPOE<br /> | 8<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 172<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | LSPWE<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 173<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PORTOEU<br /> | 10<br /> |<br /> | 28A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PORTWEU<br /> | 11<br /> |<br /> | 30A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SROMOEU<br /> | 12<br /> |<br /> |<br /> | 60<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SRAMOEU<br /> | 13<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SRAMWEU<br /> | 14<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | GND<br /> | 15<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PAL<br /> | 16<br /> |<br /> |<br /> | 39<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | VPA<br /> | 17<br /> | 21<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PADRS<br /> | 18<br /> |<br /> | 48A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | DTACK<br /> | 19<br /> | 10<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A17<br /> | 20<br /> | 45<br /> | 36<br /> | 112<br /> | 19B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A18<br /> | 21<br /> | 46<br /> | 37<br /> | 113<br /> | 20B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A19<br /> | 22<br /> | 47<br /> | 38<br /> | 114<br /> | 21B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A20<br /> | 23<br /> | 48<br /> | 48<br /> | 115<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A21<br /> | 24<br /> | 50<br /> | 49<br /> | 116<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A22I<br /> | 25<br /> |<br /> | 55<br /> | 117<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A23I<br /> | 26<br /> |<br /> | 54<br /> | 118<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | CRDC<br /> | 27<br /> |<br /> |<br /> |<br /> | 13<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 7 &amp; 42<br /> |-<br /> | VCC<br /> | 28<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDW<br /> | 29<br /> |<br /> |<br /> |<br /> | 33<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | CRDO<br /> | 30<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 9<br /> |-<br /> | CRDW<br /> | 31<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 5<br /> |-<br /> | RW<br /> | 32<br /> | 9<br /> |<br /> | 91<br /> | 19A<br /> |<br /> | 40/52<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | UDS<br /> | 33<br /> | 7<br /> |<br /> |<br /> | 89<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | LDS<br /> | 34<br /> | 8<br /> |<br /> |<br /> | 89<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | AS<br /> | 35<br /> | 6<br /> |<br /> |<br /> | 88<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | 68KCLC<br /> | 36<br /> | 15<br /> |<br /> |<br /> |<br /> |<br /> | 22<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | ROMWAIT<br /> | 37<br /> |<br /> | 28B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PWAIT0<br /> | 38<br /> |<br /> | 30B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PWAIT1<br /> | 39<br /> |<br /> | 31B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | GND<br /> | 40<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PDTACK<br /> | 41<br /> |<br /> | 29B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN00<br /> | 42<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN01<br /> | 43<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN02<br /> | 44<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN03<br /> | 45<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN04<br /> | 46<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN05<br /> | 47<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN06<br /> | 48<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D8<br /> | 49<br /> | 61<br /> |<br /> | 11A<br /> | 11<br /> | 31<br /> |<br /> | 13<br /> |<br /> | 10<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D9<br /> | 50<br /> | 60<br /> |<br /> | 12A<br /> | 12<br /> | 32<br /> |<br /> | 14<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D10<br /> | 51<br /> | 59<br /> |<br /> | 13A<br /> | 13<br /> | 33<br /> |<br /> | 15<br /> |<br /> | 8<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D11<br /> | 52<br /> | 58<br /> |<br /> | 14A<br /> | 15<br /> | 34<br /> |<br /> | 16<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | VCC<br /> | 53<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | NC<br /> | 54<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D12<br /> | 55<br /> | 57<br /> |<br /> | 15A<br /> | 16<br /> | 47<br /> |<br /> | 18<br /> |<br /> | 6<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D13<br /> | 56<br /> | 56<br /> |<br /> | 16A<br /> | 17<br /> | 48<br /> |<br /> | 19<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D14<br /> | 57<br /> | 55<br /> |<br /> | 17A<br /> | 18<br /> | 49<br /> |<br /> | 20<br /> |<br /> | 4<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D15<br /> | 58<br /> | 54<br /> |<br /> | 18A<br /> | 19<br /> | 50<br /> |<br /> | 21<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN07<br /> | 59<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN10<br /> | 60<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN11<br /> | 61<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN12<br /> | 62<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN13<br /> | 63<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN14<br /> | 64<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | GND<br /> | 65<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN15<br /> | 66<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN16<br /> | 67<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN17<br /> | 68<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN20<br /> | 69<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN21<br /> | 70<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN22<br /> | 71<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN23<br /> | 72<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN24<br /> | 73<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 36<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD0<br /> | 74<br /> |<br /> |<br /> | 40B<br /> |<br /> |<br /> | 14<br /> | 9<br /> | 2<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD1<br /> | 75<br /> |<br /> |<br /> | 41B<br /> |<br /> |<br /> | 15<br /> | 10<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD2<br /> | 76<br /> |<br /> |<br /> | 42B<br /> |<br /> |<br /> | 12<br /> | 11<br /> | 4<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD3<br /> | 77<br /> |<br /> |<br /> | 43B<br /> |<br /> |<br /> | 8<br /> | 13<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | VCC<br /> | 78<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | NC<br /> | 79<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD4<br /> | 80<br /> |<br /> |<br /> | 44B<br /> |<br /> |<br /> | 7<br /> | 14<br /> | 6<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD5<br /> | 81<br /> |<br /> |<br /> | 45B<br /> |<br /> |<br /> | 9<br /> | 15<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD6<br /> | 82<br /> |<br /> |<br /> | 46B<br /> |<br /> |<br /> | 10<br /> | 16<br /> | 8<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD7<br /> | 83<br /> |<br /> |<br /> | 47B<br /> |<br /> |<br /> | 13<br /> | 17<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDZ80R<br /> | 84<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 41<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDZ80W<br /> | 85<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 43<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDZ80CLR<br /> | 86<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 44<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN25<br /> | 87<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 67<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN26<br /> | 88<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 33<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN27<br /> | 89<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | GND<br /> | 90<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | ROMOEL<br /> | 91<br /> |<br /> | 22A<br /> |<br /> | 61<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | WRL<br /> | 92<br /> |<br /> |<br /> |<br /> | 22<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | WWL<br /> | 93<br /> |<br /> |<br /> |<br /> | 27<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PORTOEL<br /> | 94<br /> |<br /> | 29A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PORTWEL<br /> | 95<br /> |<br /> | 31A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SROMOEL<br /> | 96<br /> |<br /> |<br /> | 61<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SRAMOEL<br /> | 97<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SRAMWEL<br /> | 98<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | BITW0<br /> | 99<br /> |<br /> |<br /> |<br /> | 60<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 14<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | BITW1<br /> | 100<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 14<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |}<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8980 2025-09-26T07:34:10Z

<p>Illusionrip: /* CONNECTIONS (French) */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''SCHEM'''<br /> |'''PIN'''<br /> |'''M68000'''<br /> |'''NEO-E0'''<br /> |'''NEO-B1'''<br /> |'''REAR SLOT'''<br /> |'''FRONT SLOT'''<br /> |'''WRAM1'''<br /> |'''WRAM2'''<br /> |'''NEO-G0'''<br /> |'''74HC04'''<br /> |'''CRE401/5'''<br /> |'''CRE401/4'''<br /> |'''CRE401/3'''<br /> |'''CRE401/2'''<br /> |'''CRE401/1'''<br /> |'''LSPC-A2'''<br /> |'''NEO-DO'''<br /> |'''Z80'''<br /> |'''HM6116'''<br /> |'''YM2610'''<br /> |'''74HC259'''<br /> |'''NEO-PO'''<br /> |'''CARD IC'''<br /> |'''74HC32'''<br /> |-<br /> | DIPRD0<br /> | 1<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | DIPRD1<br /> | 2<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | VCC<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | NC<br /> | 4<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | ROMOEU<br /> | 5<br /> |<br /> |<br /> |<br /> | 21A<br /> | 60<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | WRU<br /> | 6<br /> |<br /> |<br /> |<br /> | 22<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | WWU<br /> | 7<br /> |<br /> |<br /> |<br /> | 27<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | LSPOE<br /> | 8<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 172<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | LSPWE<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 173<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PORTOEU<br /> | 10<br /> |<br /> | 28A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PORTWEU<br /> | 11<br /> |<br /> | 30A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SROMOEU<br /> | 12<br /> |<br /> |<br /> | 60<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SRAMOEU<br /> | 13<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SRAMWEU<br /> | 14<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | GND<br /> | 15<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PAL<br /> | 16<br /> |<br /> |<br /> | 39<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | VPA<br /> | 17<br /> | 21<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PADRS<br /> | 18<br /> |<br /> | 48A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | DTACK<br /> | 19<br /> | 10<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A17<br /> | 20<br /> | 45<br /> | 36<br /> | 112<br /> | 19B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A18<br /> | 21<br /> | 46<br /> | 37<br /> | 113<br /> | 20B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A19<br /> | 22<br /> | 47<br /> | 38<br /> | 114<br /> | 21B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A20<br /> | 23<br /> | 48<br /> | 48<br /> | 115<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A21<br /> | 24<br /> | 50<br /> | 49<br /> | 116<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A22I<br /> | 25<br /> |<br /> | 55<br /> | 117<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | A23I<br /> | 26<br /> |<br /> | 54<br /> | 118<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | CRDC<br /> | 27<br /> |<br /> |<br /> |<br /> | 13<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 7 &amp; 42<br /> |-<br /> | VCC<br /> | 28<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDW<br /> | 29<br /> |<br /> |<br /> |<br /> | 33<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | CRDO<br /> | 30<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 9<br /> |-<br /> | CRDW<br /> | 31<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 5<br /> |-<br /> | RW<br /> | 32<br /> | 9<br /> |<br /> | 91<br /> | 19A<br /> |<br /> | 40/52<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | UDS<br /> | 33<br /> | 7<br /> |<br /> |<br /> | 89<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | LDS<br /> | 34<br /> | 8<br /> |<br /> |<br /> | 89<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | AS<br /> | 35<br /> | 6<br /> |<br /> |<br /> | 88<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | 68KCLC<br /> | 36<br /> | 15<br /> |<br /> |<br /> |<br /> |<br /> | 22<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | ROMWAIT<br /> | 37<br /> |<br /> | 28B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PWAIT0<br /> | 38<br /> |<br /> | 30B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PWAIT1<br /> | 39<br /> |<br /> | 31B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | GND<br /> | 40<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PDTACK<br /> | 41<br /> |<br /> | 29B<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN00<br /> | 42<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN01<br /> | 43<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN02<br /> | 44<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN03<br /> | 45<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN04<br /> | 46<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN05<br /> | 47<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN06<br /> | 48<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D8<br /> | 49<br /> | 61<br /> |<br /> | 11A<br /> | 11<br /> | 31<br /> |<br /> | 13<br /> |<br /> | 10<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D9<br /> | 50<br /> | 60<br /> |<br /> | 12A<br /> | 12<br /> | 32<br /> |<br /> | 14<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D10<br /> | 51<br /> | 59<br /> |<br /> | 13A<br /> | 13<br /> | 33<br /> |<br /> | 15<br /> |<br /> | 8<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D11<br /> | 52<br /> | 58<br /> |<br /> | 14A<br /> | 15<br /> | 34<br /> |<br /> | 16<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | VCC<br /> | 53<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | NC<br /> | 54<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D12<br /> | 55<br /> | 57<br /> |<br /> | 15A<br /> | 16<br /> | 47<br /> |<br /> | 18<br /> |<br /> | 6<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D13<br /> | 56<br /> | 56<br /> |<br /> | 16A<br /> | 17<br /> | 48<br /> |<br /> | 19<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D14<br /> | 57<br /> | 55<br /> |<br /> | 17A<br /> | 18<br /> | 49<br /> |<br /> | 20<br /> |<br /> | 4<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | D15<br /> | 58<br /> | 54<br /> |<br /> | 18A<br /> | 19<br /> | 50<br /> |<br /> | 21<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN07<br /> | 59<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN10<br /> | 60<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN11<br /> | 61<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN12<br /> | 62<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN13<br /> | 63<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN14<br /> | 64<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | GND<br /> | 65<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN15<br /> | 66<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN16<br /> | 67<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN17<br /> | 68<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN20<br /> | 69<br /> |<br /> |<br /> |<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN21<br /> | 70<br /> |<br /> |<br /> |<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN22<br /> | 71<br /> |<br /> |<br /> |<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN23<br /> | 72<br /> |<br /> |<br /> |<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN24<br /> | 73<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 36<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD0<br /> | 74<br /> |<br /> |<br /> | 40B<br /> |<br /> |<br /> | 14<br /> | 9<br /> | 2<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD1<br /> | 75<br /> |<br /> |<br /> | 41B<br /> |<br /> |<br /> | 15<br /> | 10<br /> | 3<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD2<br /> | 76<br /> |<br /> |<br /> | 42B<br /> |<br /> |<br /> | 12<br /> | 11<br /> | 4<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD3<br /> | 77<br /> |<br /> |<br /> | 43B<br /> |<br /> |<br /> | 8<br /> | 13<br /> | 5<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | VCC<br /> | 78<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | NC<br /> | 79<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD4<br /> | 80<br /> |<br /> |<br /> | 44B<br /> |<br /> |<br /> | 7<br /> | 14<br /> | 6<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD5<br /> | 81<br /> |<br /> |<br /> | 45B<br /> |<br /> |<br /> | 9<br /> | 15<br /> | 7<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD6<br /> | 82<br /> |<br /> |<br /> | 46B<br /> |<br /> |<br /> | 10<br /> | 16<br /> | 8<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDD7<br /> | 83<br /> |<br /> |<br /> | 47B<br /> |<br /> |<br /> | 13<br /> | 17<br /> | 9<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDZ80R<br /> | 84<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 41<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDZ80W<br /> | 85<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 43<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SDZ80CLR<br /> | 86<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 44<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN25<br /> | 87<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 67<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN26<br /> | 88<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 33<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | IN27<br /> | 89<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | GND<br /> | 90<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | ROMOEL<br /> | 91<br /> |<br /> | 22A<br /> |<br /> | 61<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | WRL<br /> | 92<br /> |<br /> |<br /> |<br /> | 22<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | WWL<br /> | 93<br /> |<br /> |<br /> |<br /> | 27<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PORTOEL<br /> | 94<br /> |<br /> | 29A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | PORTWEL<br /> | 95<br /> |<br /> | 31A<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SROMOEL<br /> | 96<br /> |<br /> |<br /> | 61<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SRAMOEL<br /> | 97<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | SRAMWEL<br /> | 98<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | BITW0<br /> | 99<br /> |<br /> |<br /> |<br /> | 60<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 14<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |-<br /> | BITW1<br /> | 100<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | 14<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> |<br /> | <br /> |}<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8979 2025-09-26T07:31:12Z

<p>Illusionrip: /* CONNECTIONS (French) */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''SCHEM''' |'''PIN''' |'''M68000''' |'''NEO-E0''' |'''NEO-B1''' |'''REAR SLOT''' |'''FRONT SLOT''' |'''WRAM1''' |'''WRAM2''' |'''NEO-G0''' |'''74HC04''' |'''CRE401/5''' |'''CRE401/4''' |'''CRE401/3''' |'''CRE401/2''' |'''CRE401/1''' |'''LSPC-A2''' |'''NEO-DO''' |'''Z80''' |'''HM6116''' |'''YM2610''' |'''74HC259''' |'''NEO-PO''' |'''CARD IC''' |'''74HC32'''<br /> |-<br /> | DIPRD0 || 1 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DIPRD1 || 2 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VCC || 3 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 4 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEU || 5 || || || || 21A || 60 || || || || || || || || || || || || || || || || || <br /> |-<br /> | WRU || 6 || || || || 22 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | WWU || 7 || || || || 27 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | LSPOE || 8 || || || || || || || || 172 || || || || || || || || || || || || || || <br /> |-<br /> | LSPWE || 9 || || || || || || || || 173 || || || || || || || || || || || || || || <br /> |-<br /> | PORTOEU || 10 || || 28A || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEU || 11 || || 30A || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEU || 12 || || || 60 || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEU || 13 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEU || 14 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 15 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PAL || 16 || || || 39 || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VPA || 17 || 21 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PADRS || 18 || || 48A || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DTACK || 19 || 10 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A17 || 20 || 45 || 36 || 112 || 19B || || || || || || || || || || || || || || || || || <br /> |-<br /> | A18 || 21 || 46 || 37 || 113 || 20B || || || || || || || || || || || || || || || || || <br /> |-<br /> | A19 || 22 || 47 || 38 || 114 || 21B || || || || || || || || || || || || || || || || || <br /> |-<br /> | A20 || 23 || 48 || 48 || 115 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A21 || 24 || 50 || 49 || 116 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A22I || 25 || || 55 || 117 || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A23I || 26 || || 54 || 118 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDC || 27 || || || || 13 || || || || || || || || || || || || || || || || 7 &amp; 42<br /> |-<br /> | VCC || 28 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDW || 29 || || || || 33 || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDO || 30 || || || || || || || || || || || || || || || || || || || || || 9 || <br /> |-<br /> | CRDW || 31 || || || || || || || || || || || || || || || || || || || || || 5 || <br /> |-<br /> | RW || 32 || 9 || || 91 || 19A || || 40/52 || || || || || || || || || || || || || <br /> |-<br /> | UDS || 33 || 7 || || || 89 || || || || || || || || || || || || || || || || || <br /> |-<br /> | LDS || 34 || 8 || || || 89 || || || || || || || || || || || || || || || || || <br /> |-<br /> | AS || 35 || 6 || || || 88 || || || || || || || || || || || || || || || || || <br /> |-<br /> | 68KCLC || 36 || 15 || || || || || 22 || || || || || || || || || || || || || || || <br /> |-<br /> | ROMWAIT || 37 || || 28B || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT0 || 38 || || 30B || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT1 || 39 || || 31B || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 40 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PDTACK || 41 || || 29B || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN00 || 42 || || || || 3 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN01 || 43 || || || || 5 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN02 || 44 || || || || 7 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN03 || 45 || || || || 9 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN04 || 46 || || || || 3 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN05 || 47 || || || || 5 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN06 || 48 || || || || 7 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | D8 || 49 || 61 || || 11A || 11 || 31 || || 13 || || 10 || || || || || || || || || || || || <br /> |-<br /> | D9 || 50 || 60 || || 12A || 12 || 32 || || 14 || || 9 || || || || || || || || || || || || <br /> |-<br /> | D10 || 51 || 59 || || 13A || 13 || 33 || || 15 || || 8 || || || || || || || || || || || || <br /> |-<br /> | D11 || 52 || 58 || || 14A || 15 || 34 || || 16 || || 7 || || || || || || || || || || || || <br /> |-<br /> | VCC || 53 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 54 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | D12 || 55 || 57 || || 15A || 16 || 47 || || 18 || || 6 || || || || || || || || || || || || <br /> |-<br /> | D13 || 56 || 56 || || 16A || 17 || 48 || || 19 || || 5 || || || || || || || || || || || || <br /> |-<br /> | D14 || 57 || 55 || || 17A || 18 || 49 || || 20 || || 4 || || || || || || || || || || || || <br /> |-<br /> | D15 || 58 || 54 || || 18A || 19 || 50 || || 21 || || 3 || || || || || || || || || || || || <br /> |-<br /> | IN07 || 59 || || || || 9 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN10 || 60 || || || || 7 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN11 || 61 || || || || 9 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN12 || 62 || || || || 3 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN13 || 63 || || || || 5 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN14 || 64 || || || || 7 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 65 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN15 || 66 || || || || 9 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN16 || 67 || || || || 3 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN17 || 68 || || || || 5 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN20 || 69 || || || || 3 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN21 || 70 || || || || 5 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN22 || 71 || || || || 7 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN23 || 72 || || || || 9 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN24 || 73 || || || || || || || || || || || || || 36 || || || || || || || || || <br /> |-<br /> | SDD0 || 74 || || || 40B || || || 14 || 9 || 2 || || || || || || || || || || || || || <br /> |-<br /> | SDD1 || 75 || || || 41B || || || 15 || 10 || 3 || || || || || || || || || || || || || <br /> |-<br /> | SDD2 || 76 || || || 42B || || || 12 || 11 || 4 || || || || || || || || || || || || || <br /> |-<br /> | SDD3 || 77 || || || 43B || || || 8 || 13 || 5 || || || || || || || || || || || || || <br /> |-<br /> | VCC || 78 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 79 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDD4 || 80 || || || 44B || || || 7 || 14 || 6 || || || || || || || || || || || || || <br /> |-<br /> | SDD5 || 81 || || || 45B || || || 9 || 15 || 7 || || || || || || || || || || || || || <br /> |-<br /> | SDD6 || 82 || || || 46B || || || 10 || 16 || 8 || || || || || || || || || || || || || <br /> |-<br /> | SDD7 || 83 || || || 47B || || || 13 || 17 || 9 || || || || || || || || || || || || || <br /> |-<br /> | SDZ80R || 84 || || || || || || || 41 || || || || || || || || || || || || || || || <br /> |-<br /> | SDZ80W || 85 || || || || || || || 43 || || || || || || || || || || || || || || || <br /> |-<br /> | SDZ80CLR|| 86 || || || || || || || 44 || || || || || || || || || || || || || || || <br /> |-<br /> | IN25 || 87 || || || || || || || || || || || || || || 67 || || || || || || || || <br /> |-<br /> | IN26 || 88 || || || || || || || || || || || || || || 33 || || || || || || || || <br /> |-<br /> | IN27 || 89 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 90 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEL || 91 || || 22A || || 61 || || || || || || || || || || || || || || || || || <br /> |-<br /> | WRL || 92 || || || || 22 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | WWL || 93 || || || || 27 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTOEL || 94 || || 29A || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEL || 95 || || 31A || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEL || 96 || || || 61 || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEL || 97 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEL || 98 || || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | BITW0 || 99 || || || || 60 || || || || || || || || || || 14 || || || || || || || || <br /> |-<br /> | BITW1 || 100|| || || || || || || || || || || || || || || 14 || || || || || || || || <br /> |}<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8978 2025-09-26T07:24:33Z

<p>Illusionrip: /* CONNECTIONS (French) */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''SCHEM''' <br /> |'''PIN''' <br /> |'''M68000''' <br /> |'''NEO-E0''' <br /> |'''NEO-B1''' <br /> |'''REAR SLOT''' <br /> |'''FRONT SLOT''' <br /> |'''WRAM1''' <br /> |'''WRAM2''' <br /> |'''NEO-G0''' <br /> |'''74HC04''' <br /> |'''CRE401/5''' <br /> |'''CRE401/4''' <br /> |'''CRE401/3''' <br /> |'''CRE401/2''' <br /> |'''CRE401/1''' <br /> |'''LSPC-A2''' <br /> |'''NEO-DO''' <br /> |'''Z80''' <br /> |'''HM6116''' <br /> |'''YM2610''' <br /> |'''74HC259''' <br /> |'''NEO-PO''' <br /> |'''CARD IC'''<br /> |'''74HC32'''<br /> |-<br /> | DIPRD0 || 1 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DIPRD1 || 2 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VCC || 3 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 4 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEU || 5 || || 21A || || 60 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | WRU || 6 || || || || 22 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | WWU || 7 || || || || 27 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | LSPOE || 8 || || || || || || || || 172 || || || || || || || || || || || || || <br /> |-<br /> | LSPWE || 9 || || || || || || || || 173 || || || || || || || || || || || || || <br /> |-<br /> | PORTOEU|| 10 || || 28A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEU|| 11 || || 30A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEU|| 12 || || || 60 || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEU|| 13 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEU|| 14 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 15 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PAL || 16 || || || 39 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VPA || 17 || 21 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PADRS || 18 || || 48A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DTACK || 19 || 10 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A17 || 20 || 45 || 36 || 112 || 19B || || || || || || || || || || || || || || || <br /> |-<br /> | A18 || 21 || 46 || 37 || 113 || 20B || || || || || || || || || || || || || || || <br /> |-<br /> | A19 || 22 || 47 || 38 || 114 || 21B || || || || || || || || || || || || || || || <br /> |-<br /> | A20 || 23 || 48 || 48 || 115 || || || || || || || || || || || || || || || || || <br /> |-<br /> | A21 || 24 || 50 || 49 || 116 || || || || || || || || || || || || || || || || || <br /> |-<br /> | A22I || 25 || || 55 || 117 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A23I || 26 || || 54 || 118 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDC || 27 || || || || 13 || || || || || || || || || 7 &amp; 42 || || || || || || <br /> |-<br /> | VCC || 28 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDW || 29 || || || || 33 || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDO || 30 || || || || || || || || || || || || || || || 9 || || || || || || <br /> |-<br /> | CRDW || 31 || || || || || || || || || || || || || || 5 || || || || || || || <br /> |-<br /> | RW || 32 || 9 || || 91 || 19A || || 40/52 || || || || || || || || || || || <br /> |-<br /> | UDS || 33 || 7 || || || 89 || || || || || || || || || || || || || || || || <br /> |-<br /> | LDS || 34 || 8 || || || 89 || || || || || || || || || || || || || || || || <br /> |-<br /> | AS || 35 || 6 || || || 88 || || || || || || || || || || || || || || || || <br /> |-<br /> | 68KCLC || 36 || 15 || || || || || 22 || || || || || || || || || || || || || || <br /> |-<br /> | ROMWAIT|| 37 || || 28B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT0 || 38 || || 30B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT1 || 39 || || 31B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 40 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PDTACK || 41 || || 29B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN00 || 42 || || || || 3 || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN01 || 43 || || || || 5 || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN02 || 44 || || || || 7 || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN03 || 45 || || || || 9 || || || || || || || || || || || || || || || || || <br /> |-<br /> ||-<br /> | IN04 || 46 || || || || 3 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN05 || 47 || || || || 5 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN06 || 48 || || || || 7 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | D8 || 49 || 61 || || 11A || 11 || 31 || || 13 || || 10 || || || || || || || || || || || || <br /> |-<br /> | D9 || 50 || 60 || || 12A || 12 || 32 || || 14 || || 9 || || || || || || || || || || || || <br /> |-<br /> | D10 || 51 || 59 || || 13A || 13 || 33 || || 15 || || 8 || || || || || || || || || || || || <br /> |-<br /> | D11 || 52 || 58 || || 14A || 15 || 34 || || 16 || || 7 || || || || || || || || || || || || <br /> |-<br /> | VCC || 53 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 54 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | D12 || 55 || 57 || || 15A || 16 || 47 || || 18 || || 6 || || || || || || || || || || || || <br /> |-<br /> | D13 || 56 || 56 || || 16A || 17 || 48 || || 19 || || 5 || || || || || || || || || || || || <br /> |-<br /> | D14 || 57 || 55 || || 17A || 18 || 49 || || 20 || || 4 || || || || || || || || || || || || <br /> |-<br /> | D15 || 58 || 54 || || 18A || 19 || 50 || || 21 || || 3 || || || || || || || || || || || || <br /> |-<br /> | IN07 || 59 || || || || 9 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN10 || 60 || || || || 7 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN11 || 61 || || || || 9 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN12 || 62 || || || || 3 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN13 || 63 || || || || 5 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN14 || 64 || || || || 7 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 65 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN15 || 66 || || || || 9 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN16 || 67 || || || || 3 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN17 || 68 || || || || 5 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN20 || 69 || || || || 3 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN21 || 70 || || || || 5 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN22 || 71 || || || || 7 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN23 || 72 || || || || 9 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN24 || 73 || || || || || || || || || || || || || 36 || || || || || || || || <br /> |-<br /> | SDD0 || 74 || || || 40B || || || 14 || 9 || 2 || || || || || || || || || || || || || <br /> |-<br /> | SDD1 || 75 || || || 41B || || || 15 || 10 || 3 || || || || || || || || || || || || || <br /> |-<br /> | SDD2 || 76 || || || 42B || || || 12 || 11 || 4 || || || || || || || || || || || || || <br /> |-<br /> | SDD3 || 77 || || || 43B || || || 8 || 13 || 5 || || || || || || || || || || || || || <br /> |-<br /> | VCC || 78 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 79 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDD4 || 80 || || || 44B || || || 7 || 14 || 6 || || || || || || || || || || || || || <br /> |-<br /> | SDD5 || 81 || || || 45B || || || 9 || 15 || 7 || || || || || || || || || || || || || <br /> |-<br /> | SDD6 || 82 || || || 46B || || || 10 || 16 || 8 || || || || || || || || || || || || || <br /> |-<br /> | SDD7 || 83 || || || 47B || || || 13 || 17 || 9 || || || || || || || || || || || || || <br /> |-<br /> | SDZ80R || 84 || || || || || || || 41 || || || || || || || || || || || || || || <br /> |-<br /> | SDZ80W || 85 || || || || || || || 43 || || || || || || || || || || || || || || <br /> |-<br /> | SDZ80CLR|| 86 || || || || || || || 44 || || || || || || || || || || || || || || <br /> |-<br /> | IN25 || 87 || || || || || || || || || || || || || || 67 || || || || || || || <br /> |-<br /> | IN26 || 88 || || || || || || || || || || || || || || 33 || || || || || || || <br /> |-<br /> | IN27 || 89 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 90 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEL || 91 || || 22A || || 61 || || || || || || || || || || || || || || || || || <br /> |-<br /> | WRL || 92 || || || || 22 || || || || || || || || || || || || || || || || || <br /> |-<br /> | WWL || 93 || || || || 27 || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTOEL|| 94 || || 29A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEL|| 95 || || 31A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEL|| 96 || || || 61 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEL|| 97 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEL|| 98 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | BITW0 || 99 || || || || 60 || || || || || || || || || || || 14 || || || || || <br /> |-<br /> | BITW1 || 100|| || || || || || || || || || || || || || || 14 || || || || || || <br /> |}<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8977 2025-09-26T07:22:33Z

<p>Illusionrip: /* CONNECTIONS (French) */</p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''SCHEM''' <br /> |'''PIN''' <br /> |'''M68000''' <br /> |'''NEO-E0''' <br /> |'''NEO-B1''' <br /> |'''REAR SLOT''' <br /> |'''FRONT SLOT''' <br /> |'''WRAM1''' <br /> |'''WRAM2''' <br /> |'''NEO-G0''' <br /> |'''74HC04''' <br /> |'''CRE401/5''' <br /> |'''CRE401/4''' <br /> |'''CRE401/3''' <br /> |'''CRE401/2''' <br /> |'''CRE401/1''' <br /> |'''LSPC-A2''' <br /> |'''NEO-DO''' <br /> |'''Z80''' <br /> |'''HM6116''' <br /> |'''YM2610''' <br /> |'''74HC259''' <br /> |'''NEO-PO''' <br /> |'''CARD IC'''<br /> |'''74HC32'''<br /> |-<br /> | DIPRD0 || 1 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DIPRD1 || 2 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VCC || 3 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | NC || 4 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | ROMOEU || 5 || || 21A || || 60 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | WRU || 6 || || || || 22 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | WWU || 7 || || || || 27 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | LSPOE || 8 || || || || || || || || 172 || || || || || || || || || || || || || <br /> |-<br /> | LSPWE || 9 || || || || || || || || 173 || || || || || || || || || || || || || <br /> |-<br /> | PORTOEU|| 10 || || 28A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PORTWEU|| 11 || || 30A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SROMOEU|| 12 || || || 60 || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMOEU|| 13 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SRAMWEU|| 14 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 15 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PAL || 16 || || || 39 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | VPA || 17 || 21 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PADRS || 18 || || 48A || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | DTACK || 19 || 10 || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A17 || 20 || 45 || 36 || 112 || 19B || || || || || || || || || || || || || || || <br /> |-<br /> | A18 || 21 || 46 || 37 || 113 || 20B || || || || || || || || || || || || || || || <br /> |-<br /> | A19 || 22 || 47 || 38 || 114 || 21B || || || || || || || || || || || || || || || <br /> |-<br /> | A20 || 23 || 48 || 48 || 115 || || || || || || || || || || || || || || || || || <br /> |-<br /> | A21 || 24 || 50 || 49 || 116 || || || || || || || || || || || || || || || || || <br /> |-<br /> | A22I || 25 || || 55 || 117 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | A23I || 26 || || 54 || 118 || || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDC || 27 || || || || 13 || || || || || || || || || 7 &amp; 42 || || || || || || <br /> |-<br /> | VCC || 28 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | SDW || 29 || || || || 33 || || || || || || || || || || || || || || || || || <br /> |-<br /> | CRDO || 30 || || || || || || || || || || || || || || || 9 || || || || || || <br /> |-<br /> | CRDW || 31 || || || || || || || || || || || || || || 5 || || || || || || || <br /> |-<br /> | RW || 32 || 9 || || 91 || 19A || || 40/52 || || || || || || || || || || || <br /> |-<br /> | UDS || 33 || 7 || || || 89 || || || || || || || || || || || || || || || || <br /> |-<br /> | LDS || 34 || 8 || || || 89 || || || || || || || || || || || || || || || || <br /> |-<br /> | AS || 35 || 6 || || || 88 || || || || || || || || || || || || || || || || <br /> |-<br /> | 68KCLC || 36 || 15 || || || || || 22 || || || || || || || || || || || || || || <br /> |-<br /> | ROMWAIT|| 37 || || 28B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT0 || 38 || || 30B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PWAIT1 || 39 || || 31B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | GND || 40 || || || || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | PDTACK || 41 || || 29B || || || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN00 || 42 || || || || 3 || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN01 || 43 || || || || 5 || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN02 || 44 || || || || 7 || || || || || || || || || || || || || || || || || <br /> |-<br /> | IN03 || 45 || || || || 9 || || || || || || || || || || || || || || || || || <br /> |-<br /> | … || … || … || … || … || … || … || … || … || … || … || … || … || … || … <br /> |}<br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=NEO-C1&diff=8976 2025-09-26T06:17:08Z

<p>Illusionrip: </p> <hr /> <div>{{ChipInfo<br /> |picture=aes_c1.jpg<br /> |pkg=QFP100R<br /> |manu=fujitsu<br /> |date=1992 ?<br /> |gates=<br /> |used_on={{PCB|NEO-AES3-4 board|NEO-AES3-4}}...<br /> }}<br /> <br /> The NEO-C1 is a multi-purpose keystone chip used for address decoding, inter-CPU communications, [[wait cycle]] generation, and [[joypad|player input]]s on systems based on the 2nd generation chipset.<br /> <br /> It maps itself to [[68k]] even byte accesses.<br /> <br /> =Pinout=<br /> <br /> {{Pinout|NEO-C1|900}}<br /> <br /> =Internal schematics=<br /> <br /> https://github.com/furrtek/SiliconRE/tree/master/SNK/NEO-C1<br /> <br /> =Signals=<br /> <br /> ==Inputs==<br /> <br /> {{Reg|REG_P1CNT}}:<br /> * IN00: Up P1<br /> * IN01: Down P1<br /> * IN02: Left P1<br /> * IN03: Right P1<br /> * IN04: A P1<br /> * IN05: B P1<br /> * IN06: C P1<br /> * IN07: D P1<br /> <br /> {{Reg|REG_P2CNT}}:<br /> * IN10: Up P2<br /> * IN11: Down P2<br /> * IN12: Left P2<br /> * IN13: Right P2<br /> * IN14: A P2<br /> * IN15: B P2<br /> * IN16: C P2<br /> * IN17: D P2<br /> <br /> {{Reg|REG_STATUS_B}}:<br /> * IN20: Start P1<br /> * IN21: Select P1<br /> * IN22: Start P2<br /> * IN23: Select P2<br /> * IN24: Memory card inserted<br /> * IN25: Memory card inserted<br /> * IN26: Memory card write protect<br /> * IN27: System type (home/arcade)<br /> <br /> ==68k==<br /> <br /> *A17~A21: [[68k]] address bus<br /> *A22I~A23I: [[NEO-E0]] address input<br /> *D8~D15: 68k data bus<br /> *R/W, UDS, LDS, AS, DTACK: 68k bus control signals<br /> *68KCLK: 12MHz 68k clock<br /> *ROMWAIT, PWAIT0, PWAIT1, PDTACK: signals from cart PROG board to configure [[wait cycle]]s.<br /> <br /> ==Decoded signals==<br /> <br /> The following output and write enables have an upper(U)/lower(L) byte enable signal based on /UDS and /LDS from the 68k.<br /> <br /> *ROMOEU, ROMOEL: $000000-$0FFFFF read, 68k program ROM on cart / vector table<br /> *WRU, WRL, WWU, WWL: $100000-$1FFFFF read/write [[68k user RAM]]<br /> *PORTOEU, PORTOEL, PORTWEU, PORTWEL: $200000-$2FFFFF read/write, 68k program ROM and/or security chips on cart<br /> *SROMOEU, SROMOEL: $C00000-$CFFFFF read [[system ROM]]<br /> *SRAMOEU, SRAMOEL, SRAMWEU, SRAMWEL: $D00000-$DFFFFF read/write [[battery-backed RAM]]<br /> <br /> When A23I A22I A21 A20 = 1100 and RW = 1, either SROMOEU and SROMOEL should be low depending on UDS and LDS.<br /> <br /> The following are expected to be word accessed, byte writes and reads are ignored or do not work as expected.<br /> <br /> *CRDO, CRDW: $800000-$BFFFFF read/write [[memory card]]<br /> *CRDC: Memory card select<br /> *LSPOE, LSPWE: $3C0000-$3DFFFF read/write [[LSPC2-A2]]<br /> *PAL: $400000-$7FFFFF read/write [[palette RAM]]<br /> <br /> ==Z80 I/O==<br /> <br /> *SDD0~SDD7: [[Z80]] data bus used for [[68k/Z80 communication]]<br /> *SDZ80R, SDZ80W: read / write signals for Z80 communication<br /> *SDW: signals that 68k has written a byte to Z80 port, will make [[NEO-D0]] generate an interrupt if enabled<br /> *SDZ80CLR: reset stored byte<br /> <br /> ==CONNECTIONS (French)==<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''PIN'''<br /> |'''SCHEM'''<br /> |'''M68000'''<br /> |'''NEO-E0'''<br /> |'''NEO-B1'''<br /> |'''REAR SLOT'''<br /> |'''FRONT SLOT'''<br /> |'''WRAM1'''<br /> |'''WRAM2'''<br /> |'''NEO-G0'''<br /> |'''74HC04'''<br /> |'''CRE401/5'''<br /> |'''CRE401/4'''<br /> |'''CRE401/3'''<br /> |'''CRE401/2'''<br /> |'''CRE401/1'''<br /> |'''LSPC-A2'''<br /> |'''NEO-DO'''<br /> |'''Z80'''<br /> |'''HM6116'''<br /> |'''YM2610'''<br /> |'''74HC259'''<br /> |'''NEO-PO'''<br /> |'''CARD IC'''<br /> |'''74HC32'''<br /> |-<br /> <br /> <br /> [[Category:Chips]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8975 2025-09-26T05:40:50Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8974 2025-09-26T05:40:16Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | POLARISED<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD 0805<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8973 2025-09-26T05:39:45Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD 0805<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD 0805<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8972 2025-09-26T04:16:08Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | SMD 0805<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | SMD 0805<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD 0805<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD 0805<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD 0805<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD 0805<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD 0805<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD 0805<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD 0805<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD 0805<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD 0805<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD 0805<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD 0805<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD 0805<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8971 2025-09-26T04:13:00Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD<br /> | 12 pF<br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8970 2025-09-26T04:05:49Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C167<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C168<br /> | SMD<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8969 2025-09-26T04:03:09Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C132<br /> | POLARISED<br /> | 1 uF <br /> | 50V<br /> |-<br /> |-<br /> | C133<br /> | POLARISED<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C134<br /> | POLARISED<br /> | 33 uF<br /> | 25V<br /> |-<br /> |-<br /> | C137<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C155<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C159<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C168<br /> | SMD<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8968 2025-09-26T03:56:42Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C113<br /> | POLARISED<br /> | 330 uF<br /> | 16V<br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C127<br /> | POLARISED<br /> | 4,7 uF<br /> | 16V<br /> |-<br /> |-<br /> | C128<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C137<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD<br /> | 0,47 uF<br /> | 50V<br /> |-<br /> |-<br /> | C144<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C159<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C168<br /> | SMD<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8967 2025-09-26T03:51:14Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C102<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C128<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C137<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C144<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C159<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C168<br /> | SMD<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8966 2025-09-26T03:50:37Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C101<br /> | SMD<br /> | 47 uF<br /> | 16V<br /> |-<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C128<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C137<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C144<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C159<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C168<br /> | SMD<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8965 2025-09-26T03:46:48Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C128<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C137<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C144<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C159<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C168<br /> | SMD<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD<br /> | 110 pF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8964 2025-09-26T03:43:35Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C128<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C137<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C144<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C159<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C168<br /> | SMD<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C171<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnal one<br /> |-<br /> |-<br /> | C180<br /> | SMD<br /> | <br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8963 2025-09-26T03:43:08Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C128<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C131<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C137<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C141<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C143<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C144<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C145<br /> | SMD<br /> | 1,5 nF<br /> | <br /> |-<br /> |-<br /> | C146<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C149<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C154<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C159<br /> | SMD<br /> | 60 nF<br /> | <br /> |-<br /> |-<br /> | C161<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C166<br /> | SMD<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C168<br /> | SMD<br /> | 5 pF<br /> | not sure check on a functional one<br /> |-<br /> |-<br /> | C170<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C171<br /> | SMD<br /> | 1,5 uF<br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C180<br /> | SMD<br /> | <br /> | check on a fonctionnas one<br /> |-<br /> |-<br /> | C181<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |-<br /> | C182<br /> | SMD<br /> | 100 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8962 2025-09-26T03:33:57Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C000<br /> | SMD<br /> | <br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8961 2025-09-26T03:32:12Z

<p>Illusionrip: </p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> *Adjusts the resting position of the focusing lens<br /> *Compensates for mechanical variations in the optical system<br /> *Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> *Controls the sensitivity of the autofocus system<br /> *Determines the speed of focus correction<br /> *Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> *Adjusts the center position of the track following system<br /> *Compensates for mechanical alignment defects<br /> *Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> *Controls the sensitivity of track following<br /> *Determines the strength of lateral correction<br /> *Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> *Adjusts the resting position of the tracking system<br /> *Compensates for mechanical drift<br /> *Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8960 2025-09-26T03:30:17Z

<p>Illusionrip: /* Adjustment pots */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do ! Adjust values<br /> <br /> FO - Focus Offset<br /> <br /> Adjusts the resting position of the focusing lens<br /> Compensates for mechanical variations in the optical system<br /> Effect: Initial laser position relative to CD surface<br /> <br /> FG - Focus Gain<br /> <br /> Controls the sensitivity of the autofocus system<br /> Determines the speed of focus correction<br /> Effect: Focus responsiveness to distance variations<br /> <br /> TB - Tracking Balance<br /> <br /> Adjusts the center position of the track following system<br /> Compensates for mechanical alignment defects<br /> Effect: Laser centering on the track<br /> <br /> TG - Tracking Gain<br /> <br /> Controls the sensitivity of track following<br /> Determines the strength of lateral correction<br /> Effect: Track following responsiveness to track deviations<br /> <br /> TO - Tracking Offset<br /> <br /> Adjusts the resting position of the tracking system<br /> Compensates for mechanical drift<br /> Effect: Initial lateral laser position<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8959 2025-09-26T03:25:46Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do !<br /> <br /> ==Capacitor values==<br /> <br /> PCB Type NO.4 F3801AF<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8958 2025-09-26T03:23:41Z

<p>Illusionrip: /* Capacitor values */</p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do !<br /> <br /> ==Capacitor values==<br /> <br /> In measurement<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C109<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C110<br /> | SMD<br /> | <br /> | <br /> |-<br /> |-<br /> | C112<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C114<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C116<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C117<br /> | SMD<br /> | 105 nF<br /> | <br /> |-<br /> |-<br /> | C118<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |-<br /> | C119<br /> | SMD<br /> | 25 nF<br /> | <br /> |-<br /> |-<br /> | C124<br /> | POLARISED<br /> | 100 uF<br /> | 16V<br /> |-<br /> |-<br /> | C125<br /> | SMD<br /> | 35 nF<br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip https://wiki.neogeodev.org//index.php?title=CD_drive&diff=8957 2025-09-26T03:19:19Z

<p>Illusionrip: </p> <hr /> <div>[[File:Cd2_cdboard1.jpg|thumb|right|Top-loading drive control board.]]<br /> <br /> The part that makes you wait and fails in [[CD systems]]. The ones used in the NeoGeo consoles are very similar to those found in the Sega CD. They're basically enhanced audio CD drives, which are also able to read CD-ROM data tracks.<br /> <br /> Made of a control board and an [[optical pickups|optical pickup]].<br /> <br /> The NeoGeo CD top-loading model drive was made by Sony. The [[CDZ]] one was made by Sharp ?<br /> <br /> The control board has:<br /> * A 4-bit mask ROM MCU (Sony CXP5084), taking care of operation sequencing and communication with the NeoGeo.<br /> * A DSP (Sony CXD2500) to process analog data from the pickup.<br /> * A servo controler (Sony CXA1372) to drive the pickup coils for tracking and focus.<br /> * A spindle, sled (and tray) motor driver.<br /> <br /> =Connections=<br /> <br /> Some say the protocol was standard for the time, but clear information is hard to find. This was guessed from the [[system ROM]] disassembly, Sega CD documents and a logic analyzer.<br /> <br /> ==Top-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |-<br /> | 2<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 3<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange (low pulse at ~64Hz)<br /> |-<br /> | 4<br /> | ?<br /> | ?<br /> | ?<br /> | High ?<br /> |-<br /> | 5<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 6<br /> | rowspan=&quot;4&quot; | D0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 7<br /> |-<br /> | 8<br /> |-<br /> | 9<br /> |-<br /> | 10<br /> | ?<br /> | ?<br /> | ?<br /> | ?<br /> |-<br /> | 11<br /> | BCLK?<br /> | Clock<br /> | Output<br /> | Serial bit clock, should be 44100 * 32 = 1.4112MHz<br /> |-<br /> | 12<br /> | SDATA<br /> | Data<br /> | Output<br /> | Serial data<br /> |-<br /> | 13<br /> | LRCK<br /> | Signal<br /> | Output<br /> | I2S word clock, should be 44100Hz. Audio L/R switch for the DAC.<br /> |-<br /> | 14<br /> | D/M ?<br /> | Signal<br /> | Output<br /> | Data/Music. Low during music playback ?<br /> |-<br /> | 15<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 16<br /> | 5V<br /> | Power<br /> | -<br /> | +5V for logic<br /> |-<br /> | 17<br /> | 9V<br /> | Power<br /> | -<br /> | +9V for motors and coils<br /> |-<br /> | 18<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |}<br /> <br /> Missing: /RESET, C2PO, and 16MHz.<br /> <br /> ==Front-loading model==<br /> <br /> Connector pinout, directions are from CDD (CD Drive) to CDC (CD Controller):<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Pin #'''<br /> |'''Name'''<br /> |'''Type'''<br /> |'''Direction'''<br /> |'''Description'''<br /> |-<br /> | 1<br /> | SGND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 2<br /> | SVCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 3<br /> | VCC<br /> | Power<br /> | -<br /> |<br /> |-<br /> | 4<br /> | WFCK<br /> | Clock<br /> | Output<br /> | Write Frame Clock<br /> |-<br /> | 5<br /> | GND<br /> | Power<br /> | -<br /> | Ground<br /> |-<br /> | 6<br /> | SCOR<br /> | Pulse<br /> | Output<br /> | Subcode sync<br /> |-<br /> | 7<br /> | MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 8<br /> | SBSO<br /> | Data<br /> | Output<br /> | Subcode data<br /> |-<br /> | 9<br /> | EXCK<br /> | Clock<br /> | Input<br /> | Subcode clock<br /> |-<br /> | 10<br /> | EMP<br /> | ?<br /> | ?<br /> | EMPty ?<br /> |-<br /> | 11<br /> | DOUT<br /> | Data<br /> | Output<br /> | ?<br /> |-<br /> | 12<br /> | 6MHz<br /> | Clock<br /> | ?<br /> | ?<br /> |-<br /> | 13<br /> | LRCK<br /> | Clock<br /> | Output<br /> | DATA L or R channel (44100Hz)<br /> |-<br /> | 14<br /> | DATA<br /> | Data<br /> | ?<br /> | Data stream<br /> |-<br /> | 15<br /> | BCLK<br /> | Clock<br /> | Output<br /> | DATA bit clock (44100 * 24 * 2 = 2.12MHz)<br /> |-<br /> | 16<br /> | C2PO<br /> | Data<br /> | Output<br /> | Error flag<br /> |-<br /> | 17<br /> | rowspan=&quot;4&quot; | DB0~3<br /> | rowspan=&quot;4&quot; | Data<br /> | rowspan=&quot;4&quot; | Both<br /> | rowspan=&quot;4&quot; | 4-bit command/status data bus<br /> |-<br /> | 18<br /> |-<br /> | 19<br /> |-<br /> | 20<br /> |-<br /> | 21<br /> | HOCK<br /> | Clock<br /> | Input<br /> | Communication clock from CDC<br /> |-<br /> | 22<br /> | RESET<br /> | Pulse<br /> | Input<br /> | The name says it all<br /> |-<br /> | 23<br /> | /IRQ<br /> | Signal<br /> | Output<br /> | Asks the CDC for a data exchange<br /> |-<br /> | 24<br /> | L-MUTE<br /> | ?<br /> |<br /> |<br /> |-<br /> | 25<br /> | CDCK<br /> | Clock<br /> | Output<br /> | Communication clock to CDC<br /> |}<br /> <br /> ==Adjustment pots==<br /> <br /> To do !<br /> <br /> ==Capacitor values==<br /> <br /> In measurement<br /> <br /> {| class=&quot;regdef&quot;<br /> |'''Capa #'''<br /> |'''Type'''<br /> |'''Value'''<br /> |'''Voltage'''<br /> |-<br /> | C108<br /> | SMD<br /> | <br /> | <br /> |-<br /> |}<br /> <br /> [[Category:Chips]]<br /> [[Category:Repairs]]<br /> [[Category:CD systems]]</div>

Illusionrip