Xenon
Bally, 1980You're currently viewing posts by Pinsider polyacanthus.
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Agreed with zacaj the only one that's really a problem is TP1. I'd say it's most likely the bridge rectifier failing. If you replace it you might as well rebuild the whole board while you're there with new bridges, fuse clips, and pins.
Pinwiki has good info on it.
All the parts can easily be found here:
https://www.greatplainselectronics.com
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Jeffersonville, IN