It's just recently started shooting out additional balls during gameplay. I've read over a few posts about this. I'm not getting any response from any of the ball trough optos. Someone said you can use a flashlight to possibly trigger the phototransistors but that's not having any effect either. F115 and F116 are good. How do I check if the individual LED's are working? It would be nice to have a phone or camera with night vision on it I've tried testing the individual wires coming from the board for 12V output but the test points on my DMM aren't small enough to fit inside the wire harnesses. help!