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Saturday 27 January 2018 at 00:21
Board has no corrosion, battery was replaced with memory cap some time ago. Tried reading pins with MPU dipswitches in both OFF and ON positions, so no change there.
No coin switches register, and this is with both J2 AND J3 off, so again, no change.. (coin door switches go through J3 if I recall,...
Source: http://pinside.com/pinball/forum/topic/strangest-switch-matrix-problem-ever#post-4197397