I replaced a very grotty looking rectifier board on my Bally Star Trek because after replacing most molex connectors at J1 - J3, I could not get Playfield GI to work consistently. I took great care to hook all wires up correctly. I'm getting 177 volts at Test Point 2, 12,6 v at TP3, 7,4 AC at TP4 and 43V at TP 5, but ZERO V at TP 1. The fuses are good.
I took the transformer out of the game and checked continuity from all wires I'd soldered [E1 to E12] to the transformer lugs from the front of the board. All tested good.
I stared a game: it boots fine and plays ok. In fact everything works except the controlled lamps on the playfield. (Which worked find before I installed the repro board).
Where should I look?
All hints appreciated.