Salem, OR
Getting strange noise from game. Any ideas where to start?
(Topic ID: 260559)
Linked Games
Eight Ball Deluxe
Bally, 1984
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No response that I can tell.
Quoted from jj44114:What do you get when you press the red test button on the board?
I assume you are getting 5 flashes on the board's LED on power up. If you are, the small electrolytic caps should probably be replaced. I would start with C15, it looks toasted. Then C42, C19, C24 and C25.
Based on that video the board is booting and rebooting after the self test sequence is over. You just can’t hear the call outs during the self test. I’m betting it’s the caps
Well I got it fixed without replacing any caps. Here’s what I did:
1. Pulled all the IC chips, cleaned them and reseated them.
2. I swapped the IC chips starting with “MC” chips that are identical.
3. Cleaned the pots.
4. Reflowed the solder on just the connectors on the board.
5. Pulled C15 cap and tested it. Passed. Put it back.
6. Reseated the cables.
...and that’s about it.
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