Hey all. I'm trying to diagnose what's going on with a few lights on my Bally Lost world pinball. All the switches bumpers solenoids and most playfield lights work. All the sounds, displays, and back glass lights work.
The upper 1/3 of the bulbs around the playfield won't light up. The bumper lights won't light up either. I looked in all the schematics and I can't figure out what to test or what controls those lights.
When I go into test mode those 1/3 upper lights won't light up.
I tested TP 2 and TP 3 on the lamp Driver A5 board and I get 5.1V. I also reseated all connectors and checked all fuses good with my multi-meter.
Any help or suggestions?