...oh good, the issue I'm having is associated with current discussion.
I just picked up a CFTBL two weeks ago. The lights in the pop bumpers are connected to the lights on the triangle PCB.
They were paired "oddly" and one wasn't working at all, so I made some adjustments and now the lighting bolts and the pop bumper lights come on in pairs as-desired in test mode and attract mode. Perfect.
BUT
In game play, all six lights are on by default unless one of the bumpers pops, in which case all six briefly flash off. Is this normal? What is the intended lighting logic for the lightning bolts? Is there a situation in game play when the bolts should be on independent of the other bolts?
By the way: my pop bumper lights are wired directly to the lamps on the PCB board (which is just U-G-L-Y). I like @Fifty's arrangement much better and will rewire similarly as soon as I stop being lazy and/or preoccupied by other minor pin projects.