MV1A component designator "PC"

[kissedin]

This the last of 3 boards that i am working on. It is a MV1A.

It is missing a component labeled "PC34" on the underside of the pcb.

What does PC stand for? What kind of component is it and what value is it?

 

[kissedin]

Update. I stumbled upon this when browsing around. Did not see this when i searched the forum. Sorry for littering with unnecessary questions.

"PC = power conditioning, they re not required, them missing should not cause a click of death
IIRC they are 68nF ceramic caps, but 100nF will do just fine"

 

[Agent]

Any idea what the CR labled items are by the jamma that go to the controller buttons?

 

[maki]

Any idea what the CR labled items are by the jamma that go to the controller buttons?

these ones?

CRE401 - NeoGeo Development Wiki

wiki.neogeodev.org

@kissedin no need to be sorry

 

[Agent]

Thanks I finally did find that page the other day. I have a board with 4 of them having the ground pin busted. Not totally sure how I am going to fix this.

 

[littlecharlie]

This replacement works fine, I've used it

GitHub - mourix/CRE401: Reproduction of the unobtainium CRE401 RRC array chip found on SNK Neo Geo circuit boards.

Reproduction of the unobtainium CRE401 RRC array chip found on SNK Neo Geo circuit boards. - mourix/CRE401

github.com