I have a 1976 fireball pinball home model. I just got it off Craigslist the other day. The only things that don't work is one of the bumpers and the four back glass lights. I bought a new part for the bumper but I can't figure out why the four back glass lights don't work. I included two pictures one of the back box where the lights connect to the board with a clip and the other is the front of the machine showing the lights that do not work
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