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Sunday 18 February 2018 at 14:35
These jumper mods are pulled from the old pinball repair site that was taken down years ago, Hope they help.
WPC and WPC-S Driver Board Jumpers:
For reference, the driver board is positioned with the solder side showing, and connector J104 at the "top". All jumpers added to the solder side of the dr...
Source: http://pinside.com/pinball/forum/topic/wpc-reset-advice#post-4236571