I have a system 8 board out of a Pennant Fever that has two controlled lamp columns dead. Not a lot of resources available and the only schematic I found online is barely legible.
My wiring and connectors are all sound and the lamps don't work in test mode. I on the board tested the small transistors that are associated with the columns and they test good I believe.
I could use some brain food on this one if anyone could help. I never did much repair on pre system 11 games and considering the scarcity of these boards I don't want to do more damage.

Andrew