Nintendo VS PCB Resetting?

FlashbackArcade

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Nintendo Vs PCB Resetting?

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I have a Nintendo Vs PCB that continue to reset once the attract screen comes on. I have tried multiple chipsets but the same thing keeps happening. I would like to repair the board myself. Anyone have any experience with resolving this problem? Thanks for any help you guys can give!
 
Try to clean the edge connector and If there was ever a daughter card installed the 2 40-pin sockets could be streched out. You could try to put a couple machine pin sockets into the original sockets and put the PPU and CPU into them.
 
Also check to be sure you have the correct voltages getting to the PCB.
 
VS pcb

Is there a voltage pot on the board somewhere? My other pcbs all work fine in the cabinet. Cleaned edge connector...no luck. I guess I'm going to change the ppu and cpu ics next. Just didnt think that was it because the game was starting up and showing graphics before resetting.
 
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