Lamp driver on my Bally Playboy stopped working, it was working perfectly fine except for at the bottom of the playfield where it's numbered 1-10... #4 wasn't lighting which turned out to be a cracked header pin, I re-flowed the pin and others, checked to make sure none of them got cross soldered, put it back in turned the game on and the first time had no illumination at all, turned it off and back on and GI came back on but not lamp driver lighting. Removed the fuse and it's good, under PF fuse good. Any suggestion what happened.

I may have a bad Transformer...... Maybe, bare with me as I explain.
I wiggled the rectifier board and the lights flashed on, put my MM on TP1 and Gnd and got nothing, wiggled the board and the voltage went up to 5v so I new I had a loose connection on the board, with a pen I wiggled the fuse and the lights came on, thinking it was the fuse replaced it, with the new fuse in nothing so I removed the board and replaced the fuse holders, put everything back in and nothing.... no voltage at TP1 yet I have voltage at fuse, traced NO VOLTAGE back to the transformer and I have no voltage at lug 14 (which is direct voltage to the rectifier E10), all other lugs test good, so do I have a bad transformer or is there something else to check.

Connectors and pins where replaced a couple months ago, and transformer tested AC

I was thinking even though the rectifiers are new that BR1 went bad some how but wouldn't I still have voltage at the transformer, it goes to that rectifier.

Problem fixed, it was a bad solder joint at the fuse holder component side at BR1.