Stern flipper dies mid game

[Punk Stig]

I have little info on this, occured once or twice and rarely but has now happened more frequently-

Stern star trek, mid game flippers don't (fail to) flip, hit the buttons repeatedly- nothing, ball drains, next ball comes into shooter lane and they work fine again, will be consistently good for 20 games or more then randomly fail to flip again.

Any ideas where I should start looking?

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[Deleted member 2463]

I’d check the trough to start with.

Then check all the switches and cabling including the coin door switch and tilt Bob.




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[CHRIS B PINBALLS]

Replace both opto boards in the trough

 

[johnwhitfield]

Isn’t this the classic fake ball drain that Sterns do? Reseat the connectors on the ball trough and see if that solves it.

 

[Punk Stig]

Going by the comments just to add- the ball doesn't end until the ball physically drains, as in the ball end screen/ bonus count doesn't occur mid ball- that only happens once the ball drains!

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[johnwhitfield]

It’s pretty common on new Sterns. Whip the connectors off the opto boards and plug them back in and it Should stop it. My very limited understanding is it’s a dirty/oxidised connection type thing....

 

[Punk Stig]

Reseated connectors, cleaned optos, couple of games played fine, will see how it goes, happens again I'll replace the trough opto

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