Helping a friend bring a game back from his past. Was part of an arcade team back in the 70's and when he left he was able to snag this one. After years of not operating, we got her up and running my last trip over..
Had her working last week, then cleaned her thoroughly. She looked great for her age, was starting up, playing, all good except the score reels wouldn't all return to zero. Time got late the first trip so I had to leave. I needed to come back to rebuild the plunger and thought I'd look at the score reels on a 2nd trip.
Got there this evening, he said they had played it 20-30 games (just weird scores of course, starting at various spots). But fun to see the machine play again. When I got there the playfield was lifted up, back box open, etc. (he removed the plunger assembly for me to save me time, nice guy and he tries...anyhow- I powered her on and now all lights work but the score motor runs continuous. I can still hit the start button (with or without a ball in game), the score reels all now reset to zero across the board, it shows ball one, pops, slings and flippers all work - but it continuously racks points (by the thousands) and the hole kicker activates continuous (not the outhole kicker - it doesn't operate, whether I place a ball in or not. That switch is open until I press on it or a ball is placed), it never goes to the next ball (again whether a place a ball in the outhole or manually press that switch) -but seems like it's continuously starting Ball One, and giving 1,000 points but doesn't go into full start mode??.
Looking at the schematic now that I'm back home (the color version is amazing, so cool for someone like me..lol) I do see a 5,000 point relay that I did not inspect while there, so it could be giving 5,000 points in 1k increments, but continuous..IDK After 2nd thought, the Hole kicker does go off on each 1,000 point increment, so that may be a clue.
But I thoroughly went over every switch on/under the playfield, thinking something is stuck, giving 1,000 pts on, and on, and on, ... nothing is stuck/closed.
What can cause the Hole kicker to activate (not the Outhole kicker), give 1,000 points, and not let the Outhole switch activate to a) go to next ball b) not kick out next ball - and not stop?
Is this a score motor issue? Any tips on this would be helpful (SM's are not my friend) Maybe it's the number of switches in such a small place and no matter what I always seem to make things worse...and then it turns out to not be a SM issue after all...lol
So I'd rather ask for help then make matters worse. Thanks in advance!