I've had this pin for eons and finally decided to work on it. I took care of a few minor issues and got it to where it will clear and zero the score reels but that's it. No outhole kicker, no start of game and the lights come on only once in a while. While trying to determine the next step, I noticed (per the picture) that there is no wire connected to one of the terminals on the credit reset solenoid. Nor is there a wire anywhere that looks like it used to be attached there. There are 3 (3!) black wires connected to the other terminal. Probably not a big deal. The schematic says that I should have a white/brown wire connected to the open terminal and, nearby, you can see a white/brown wire on that leaf switch. Should I tie those two together?

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Thanks, guys. Yup, that little white wire stub is the missing link.