Picked up a CSI pin and there's an issue...there's an opto cable to opto board (1) J2 not lit and dangling down inside the cabinet. The opto board 1 to which the dangling wire is attached has only one of the two LED's lit unless press the back side of the dangling opto itself (solder side) then both light up at the same time. Here's the issue...the centrifuge/display does not score as it should and the exit lane pop up doesn't pop up when a ball enters and exits the centrifuge. If I reach inside the cabinet and grab the dangling opto itself and press my finger against the back side of the opto again solder side during gameplay while a ball is in the centrifuge spinning then the pin's display scores as it should and the post will pop up upon exit. Let go the opto and back to square one.
Where should that dangling opto mount? Why is the light out on opto and the circuit board 1 LED out unless I press against the back side...further more where the heck does that opto mount to the playfield? I cannot see where it's supposed to go?
Any help would be greatly appreciated.