I think this is the problem with my Twister. I cant get 1 of the 4 optos to fire in a switch test. Is this a part that rarely needs replaced? Are they fixable? Is there a way to clean it up? Its a 100.00 part and dont want to just buy another if it is not for sure the problem Thanks in advance.

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"That wears over time"...that might tell me what I need to know. Thanks!!

That would be way beyond my skillset...

So took it apart and it worked fine with the PF up and with the trough removed. All 4 spots registered when i touched them. Put it all back together and absolutely nothing. In a single switch test not one of the 4 registered. Im stumped.

Bump

Any hints?

Any tips on how to check that board? BTW love your avator. I have a Springfield XD

Thanks a bunch. the horseshoe switch seems to be working in all of the switch test. the game always knows if there is a ball in the VUK. It doesnt know when there is a ball in the trough.

The small pin on this board can be wiggled with your fingers....Think i found the problem.

Those are some small pins...I assume I will prob burn myself.

Bought a new board. Fixed.

Yup