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kikaso

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Hello, all

Looking for some help with the PSU in my cabinet.

Just turned on and all I get is a white screen. I just re-capped the CPS1 board in it last night and thought that might be the case so I pulled out the multimeter to check. Turns out the board isn't getting any power. I checked the PSU and while the AC voltage is fine, I'm getting zero reading on the DC lines. The game was running fine last night. I'm including some DC voltage readings from about a week ago when I was told the readings indicate good working capacitors. I also checked for continuity on the fuse on the PSU and that's fine.

Any ideas on what could be wrong?

At PSU:
5.09V
12.23V

At JAMMA edge
5.00V
12.13-12.14V

At capacitor on board
12.10V

At ROM
4.99V
 
Last edited:
Update: I installed a replacement cheap-o power supply unit and the cabinet works fine so that confirms it's the original PSU that's a problem.

Anyone know a good technician who can diagnose and repair this PSU for me?
 
Leaking capacitors was the culprit. One was so corroded it was no longer making contact with board.
 
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