Ok I thought I had this thing all dialed in and now it's in a spot that requires me to move a bunch of stuff to service. Of course that's when it would develop a new issue. Ugh.
The problem occurs when playing a game and the ball drains. Sometimes after the bonus unit will count down, the drops will reset and then try to reset again. Even though they are up and ready. Some balls are fine with no issue. Other times it may try to reset 3 times before kicking the ball out. Sometimes it will also advance an additonal ball in play. Example advance from ball 4 to 5 after already advancing from 3.
I'm sure it's a slightly mis-adjusted switch somewhere. I checked the drop target reset relay, drop target unit switches and bonus unit switches. The bonus unit pulses also when this happens.
I suspect a score motor switch as that's where my last issue was discovered. Can you schematic guys school me once more. Sorry I'm not more intuitive with them.