I have a Laser War game from Data East that plays amazingly well, with the exception of one thing. Whenever I get two of the balls into the “bases” during play and I enter 3 ball multiball play, the machine ejects the 3rd ball into the shooting lane but then it keeps trying to eject additional balls into the lane (which there aren’t any so it’s just a really loud sound that doesn’t stop). The only way that I’ve found to stop it is to turn the game off and back on. Any thoughts on where to look to troubleshoot? I’m a new pinball machine owner and don’t know where to start.

Thanks!

Thanks for the help! I checked that and unfortunately when all balls were removed it does not indicate any switches are active. It’s also hard to know exactly what going on as it enters 3-ball play since there is no way that I know of to see what’s going on with switches during a certain moment in play. Could it be that something is throwing the switch off only when there are no balls in the trough? I’m stumped. Thanks!

Thanks for the tip on ejecting the balls manually! I’m going to try this and see if that reveals anything. Will report back.

Manually ejecting the balls during an Active switch test helped reveal that the Trough #1 switch was working fine when there were multiple balls in the trough (I think because the pressure from the other balls) but not when the only one ball remained in the trough. Also when looking at the switch trigger from below, I could see that the mechanism that ejects the balls was getting stuck against the trigger for switch #1 as well. With a few adjustments and tightening a couple of screws it’s working as expected again. Thank you!!