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Friday 22 December 2017 at 17:37
Hi Shredso
You do not talk about the Lock-Relay - You say that the Ball-Index-Relay pulls-in right away. See the first JPG - "encircled green" is allowed to be "as drawn in the schematics". The fault must be in one of the "encircled red switches" ---
The easyest to check is the "Switch on Ball-Index...
Source: http://pinside.com/pinball/forum/topic/1966-williams-8-ball-project#post-4137317