CRE401: Difference between revisions
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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 4 identical | 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]] | ||
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[[Category:Chips]] | [[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.
