I've got a problem which I'm certain is simple but to a novice like me seems impossible. Recently got a fully functional Gottlieb North Star unit and it's played great. I fired it up today and none of the lights behind the backglass light up. The scoring works. The play field lights up fine. But no backglass lights.
I don't have a schematic.... (though I just ordered one based on other advice here.) Though I'm not sure I'd be able to read one anyway. Any help is appreciated!