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Author Topic: Help please. Monitor has vertical lines. Multi williams restore  (Read 1306 times)

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Hi all. I have a multi Williams game that I have been working on for several years. It has a robotron board set and a Clay's multi Williams board set attached to it. I rebuilt the power supply board and replaced all the bad connectors and connecting pins when I started building this game years ago. Now I'm getting vertical lines on all the screens but the games themselves are all playable. I've never done the 4164 Ram chip swap and was wondering if this could possibly be causing this issue with one of the old 4116 chips being bad any thoughts?any help is appreciated....