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Thursday 26 April 2018 at 12:38
Quoted from zucot:I'm troubleshooting a big buck hunter where the Bird and Ram opto switches are stuck closed in test.
I have replaced the optos.
I have replaced the opto amplifier board.
All of the other switches in that row work fine.
I have not tested the other switches in the Ram or Bird opto co...
Source: http://pinside.com/pinball/forum/topic/big-buck-hunter-optos-stuck-closed#post-4362653