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Friday 15 December 2017 at 00:20
Hi HD-Fatboy
here http://mirror2.ipdb.org/files/1072/Williams_1976_Grand_Prix_Manual.pdf on page-12 (ori-10) I can see where the relays and steppers are mounted --- the Left Bonus Relay and the Right Bonus Relay are mounted on the underneathside of the playfield. Lift the playfield - actuate the R...
Source: http://pinside.com/pinball/forum/topic/williams-grand-prix-one-score-reel-not-reseting/page/2#post-4124340