Author Topic: Williams / Bally WPC Driver Board Upgrade  (Read 10989 times)

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Offline ktm450

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Re: Williams / Bally WPC Driver Board Upgrade
« on: May 15, 2011, 12:34:51 AM »
Nice work Nino, I used to not worry about the jumpers, as I figured I could get a good joint through the board, but a few years down the track after the bridge rectifiers heat up and cool down many times I have had cold solder joints, giving me game resets when both flippers are pushed at the same time, adding the jumpers at this point fixed the resets, so I always do them for BR2 and C5 now