I'm having an issue with the opto's in the ball trough. Opto 5, last one on the left, is not working - it's always open. I pulled the boards out and the receiver board looks ok, but the transmitter looks to have been "repaired" before. Two or three of the resistors have been changed and there is additional solder running on the outside of the board - some looks to have been chipped away - which I'm guessing could be my issue, or a resistor broke away. Also behind some of the optos something besides the solder looks to be melted.
Anyway, I have no board repair experience would this be worth trying to learn and fix or should I just buy some new boards?
I read that this was a common issue with the WPC-DCS widebody games. If I go new, I'm thinking of buying the redesigned boards from great lakes modular, anyone have any experience with these?
Thanks for the advice