UGGHH.. so it seems like I've been stamping out one fire and have another!
Today, I turned my KISS on and the playfield lights don't work (GI lights all work) but no inserts. The game plays just fine and the score displays register scoring. It's like playing with any playfield lights registering.
I have the Alltek Ultimate lamp driver board installed to run LEDs but the manual is of no help. I can't remember if this Ultimate lamp driver board has an LED on it that lights indicating power either but I don't see any lights on it now.
Ironically, I have the Alltek MPU and solenoid driver board en route via Cointaker so will have brand new parts there.
Any ideas in the meantime???