Who rebuilds Williams PS

Jessejames

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Donor 2012, 2017
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Who rebuilds Williams a Power supply's? My Robotron needs rebuilt. It's working, but want it done.
 
i have a williams sorcerer and im getting error message 7..I have had the mpu rebuilt and im still getting the error message. I think my power supply is bad. Is there a sure way to test it before i send it to you for repair. thanks in advance
 
I don't know the pinout for System 9 games, but I'm guessing they use the same standard colors for Williams. solid grey being +5, grey-yellow for +12, grey-green for -5 or -12 (whichever they were using at the time). the +12 and -5/12 should be only for sound, if your +5 is sagging a lot then it's probably due for a rebuild.

I've seen some nasty stuff with those System 9 power supplies that get burned up.
 
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