I have a weird issue going on with my AFM. Randomly throughout a game, when the ball rolls over the upper left switch (I think it's #73) it not only activates the capture, but also triggers the 'Return to Battle' ball save, and kicks an extra ball out. Just wondering if anyone else has seen this happen, as I can't for the life of me figure out what the hell is going on. Oh the joy!
Have you worked on the game recently and this started, or did it start on it's own or always done it ?
Anyway, it sounds like a classic switch matrix error. One switch triggers others. And the usual cause is a switch wired wrong, diode on backwards, or a short to switch wiring.
Start with the row and column the upper left switch is on, inspect the other switches on the same row and column, then go over your other switches.