Minor adjustment
Everything's working okay, but a seemingly minor issue that was happening before my 10k solenoid burned is that occasionally the 10k player one reel won't roll over, and (I'm sure it's related) the ball count unit occasionally won't advance. I'm fairly certain that after a while of use this seemingly minor issue probably caused the 10k solenoid damage. It's so inconsistent however I haven't been able to track it down. The score reels and ball count unit have been broken down and cleaned multiple times, and when metered everything seems to be making good contact, and the 10k has a new solenoid. It's not persistent, and it's the 10k reel so I don't think it's a stuck playfield switch. I've run through the schematic and cleaned and checked everything in sequence I think would affect this, but my understanding of how the ball count unit relates to the score reels isn't that clear. I've been focusing on section F-14 of the schematic (posted earlier) to try and track this down. Suggestions welcome.
As an aside, my father in law, who saved this from a trash heap in 1985 though he had never played it, finally got to play it properly over Thanksgiving and was delighted.
UPDATE: After fiddling around with the score reels and ballcount unit I came across what I think is part of the problem. The 9 position leads on the player 1 thousands reel read as always closed when the ball count unit is on zero or two balls (not in any other position). However, if I jiggle the ball count unit cam shaft this becomes intermittent. I'm not sure if this is significant or what it means. None of the other 9 position leads on the other score reels read as always closed.