The Simpsons Pinball Party
Stern, 2003Any ideas on this, just started doing it. When you power the balls up, all are kicked out of the trough, while it 'looks for pinballs'. Then starts just fine. All switches are working according to any testing it just does this every single time it starts up. No other issues and the game plays 100%.
This issue has happened to me where it would launch all balls on power up. All played well after except when a ball shot up from the trough and would rebound back in. The opto board couldn't detect that there was one ball on the other thus serving up 2 balls into play after the ball search. Cleaning the opto boards on the trough didn't fix my issue. But replacing the opto boards on the trough fixed both problems.
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Grayling, MI