Hi keep getting this error on start up. Checked the opto one on top on the board inside cabinet. It seems to be the one that is not used because I do not have an upper flipper. Is there a way to turn off? Anyhow the upper opto does not work in switch test when I swipe a credit card across it.
Also can anyone help me diagnose the problem maybe transmitter or receiver opto out?
Does not affect game play but do not want the error on startup.
Cheers in advance Dave