Have an odd issue with Millionaire. The drop targets don't seem to register when hit. They drop down and come back up after the start of each ball. I thought maybe the boards were bad as I was getting error codes on startup for switch 39 and switch 40. I swapped out one board, now the error codes are gone, but there is no scoring when the drops are hit.

Does anyone have a pic of how the boards should be wired? As I just copied what was already there. Mine is currently:

Grey - 12V
Black - G
2 Whites - R
2 Green - C

Yeah, I'm aware the beam needs to be broken, that's why I bought a new board to test out.

Will clean the other old one this weekend. And see what happens. They can't all be dead......I hope.

Alright I have the drops working now, also originally thought the scored when hit, I guess they only advance the multipliers.

Bad solder job, had to re do it, and then reflow the points on the second opto board.