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I've had issues with this match stepper on three several games lately, Fast Draw, Royal Flush and Target Alpha. I wasn't even thinking this was the issue, but it also is used to trigger the alternating relay. Had to take it apart and clean each one like you show.
Quoted from mot:This stepper on my El Dorado often lights two match numbers at the end of a game. If I actuate it by hand, I can never recreate this, as it always steps through properly and lights one number at a time, but it must be slightly mis-aligned or half-stepping or something. Has anyone seen this before? Does anyone have any recommendations for what to look at?
I disassembled and cleaned this stepper last year.
Probably misaligned. The screws that hold the arms that puts pressure on the wipers can be loosened. The bakelite pieces, with the traces on them, can be rotated slightly. Make sure the wiper arm is centered on the trace before tightening the screws.
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