bally electra expander board problem

firepowerplayer

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Oct 21, 2010
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iron station, North Carolina
My electra works great with one exception. The lower playfield flippers do not power up during the electra time They are controlled by the expander board, which works in lamp test. There is a test sitch, it works. I think I can rule out the expander, and the aux lamp driver which picks it up because it works in lamp test. eight ball deluxe has a lamp aux, but I have not tried it. reseated the PIA chips on the CPU. Any thoughts?
 
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