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Sunday 29 October 2017 at 02:05
Pulled the playfield out and examined the wires. I didn't see anything adnormal so I metered out the wires while wiggling. Didn't find anything. Pulled the driver board to see if something was shorting to ground on the back and didn't find anything. Put it all back together and it seems to be workin...
Source: http://pinside.com/pinball/forum/topic/early-bally-ss-flipper-issue#post-4044950