CRE401: Difference between revisions
Jump to navigation
Jump to search
(Created page with "SIL capacitor/resistor array used for input ports. Also called "CR10-A-*" on late NEO-CDD boards. Drop-in replacements seem hard to find File:Cre401.png [[http://www.b…") |
mNo edit summary |
||
(3 intermediate revisions by the same user not shown) | |||
Line 1: | Line 1: | ||
Serial-In-Line capacitor and resistor array used on NeoGeo boards, to protect input ports and auxiliary circuits ([[MV-LED]]). Also found as "CR10-A-*" on late [[NEO-CDD boards]]. Drop-in replacements seem hard to find but using common 1/4W resistors seems to be enough for a quick fix. | |||
They are composed of 4 identical circuits. The leftmost pin's net pulls all outputs through 1k resistors. The 330 ohm resistors provide current protection (sometimes as fuses), the capacitors smooth out eventual spikes. | |||
[[File:Cre401.png]] | [[File:Cre401.png]] | ||
Line 5: | Line 7: | ||
[[http://www.bitechnologies.com/pdfs/cr.pdf Original manufacturer datasheet ("-A Circuit")]] | [[http://www.bitechnologies.com/pdfs/cr.pdf Original manufacturer datasheet ("-A Circuit")]] | ||
[[Category: | [[Category:Chips]] | ||
[[Category:Repairs]] |
Revision as of 01:50, 3 March 2016
Serial-In-Line capacitor and resistor array used on NeoGeo boards, to protect input ports and auxiliary circuits (MV-LED). Also found as "CR10-A-*" on late NEO-CDD boards. Drop-in replacements seem hard to find but using common 1/4W resistors seems to be enough for a quick fix.
They are composed of 4 identical circuits. The leftmost pin's net pulls all outputs through 1k resistors. The 330 ohm resistors provide current protection (sometimes as fuses), the capacitors smooth out eventual spikes.