Schematics

From NeoGeo Development Wiki

Revision as of 23:58, 24 September 2023 by NFG (talk | contribs) (→‎AES (home): Added re-draw of page 5 schematic, preserved link to original scan)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Jump to navigation Jump to search

AES (home)

Big thanks to Wolfsoft and ArcadeTV for the scans.

On page 6: There are two resistors in the bottom left corner that can't be seen due the page fold.

The R48 4.7k is connected to VCC and R49 4.7k is connected to GND.

Both resistors are connected to pin3 of U31A.

Page 1:68k 68k user RAM NEO-C1
Page 2:NEO-G0 Palette RAM Video DAC
Page 3:NEO-B1 Reset generator Joypad ports
Page 4:LSPC2-A2 L0 ROM VRAM
Page 5:Z80 Z80 RAM NEO-D0 (original scan)
Page 6:YM2610 YM3016 NEO-C1
Page 7:Video encoder
Page 8:cartridge slot
Page 9:System latch NEO-E0 Power supply
Page 10:Memory card
Page 11:Video PLL

MVS (MV1F)

Beware ! There's an error on page 9 (cartridge edge connections): ROMOE/4MB are swapped. ROMOE should be on pin 33 bottom, and 4MB is on pin 34 bottom.

Page 1:68k System ROM 68k user RAM Battery-backed RAM NEO-C1 Joypad ports UPD4990 Battery circuit
Page 2:LSPC2-A2 VRAM NEO-I0 NEO-B1 NEO-ZMC2 SFIX ROM L0 ROM
Page 3:NEO-E0 System latch Palette RAM Video DAC
Page 4:Z80 Z80 RAM SM1 ROM NEO-D0 YM2610 YM3016 Headphone amp
Page 5:Power amp NEO-F0 DIP switches Cab interface
Page 6:Daughterboard connections
Page 7
Page 8:Daughterboard connections
Page 9:Cartridge connections

Peripheral (home/arcade)

Steering wheel schematic for Thrash Rally.

Retrieved from "https://wiki.neogeodev.org/index.php?title=Schematics&oldid=8298"