I bought a very cheap, very dirty Midway Little League pitch n bat EM. Cleaned it out, ran a business card through every contact I could find and it woke up. It will register a credit, but it will not pitch the ball when you hit the button. If you go to the pitch relay and manually tap it, it will pitch and you can swing the bat. But, it will also not score anything ever. Thoughts? I also have a “LOCK” relay with a very short red wire coming off of it that is disconnected, but there is not local terminal to attach it to..... could that be it? Anyone know what an “Alternator step up unit” is? Mine is missing a small nylon arm and the coil plunger. It says “switch operates change over relay”. Any help would be great.

Ok, found where the red broken wire on the “Lock” relay goes. Fixed that. Game will now pitch and register a score!
Problem now is that the score reels bounce up and down and don’t actually stop at a number. Once the target is hit, it keeps cycling with the bell and score reel motors.....

Got it to take a score. But the stepper units won’t advance the ball in play.....it just keeps on playing, never getting to game over.