Museum of the Game® & International Arcade Museum® Forums

I have a good CD 100 display, CCC and control panel - all tested in a working machine. When I hook up the panel and display to a machine I am restoring, I can't get numbers 3 or 7 to register. I checked for continuity on the respective wires and it is good. I am at a loss here. Anyone have any ideas? Thanks for your time.