Hello all Pinsiders. I have a Gottlieb(1976) "Big Hit" pinball that, when playing, all lights randomly go out. Game plays fine and everything works OK, just all lights go out, then randomly come back on. Checked fuse holders and they seem fine. Thanks in advance to anyone who can direct me to resolving this

I'm no longer in possession of the machine. The owner text me this morning and told me of the issue. I previously had this pin in my possession for repairs a couple months ago. I'll have to ask him if it happens when scoring points or just randomly in the middle of play. Unfortunately, I purchased a schematic for this game but left in the machine so I may have to actually look at it at his residence. Was wondering if there could be a contact on the hold(s)relay. Just putting it out there. Thanks for responses so far. By the way, I believe I cleaned all the Jones plugs when I first had it here. Could still be an issue with them I'm guessing.

Thanks so much for your reply. I found a schematic close to the Big Hit one and you are correct, the GI and the other lights have seperate fuses. It would almost have to be an intermittant type short or a bad connection from the transformer, probably unlikely. The owner tells me it's ALL lamps. Not sure if that's the case or not. I may have to go to his residence and check the things you mentioned. Since it IS an intermittant condtion, it's pretty much a "crap shoot." Thanks for your input. Not sure how all lamps are out when there are fuses for 2 different circuits unless(as you mentioned)there's some type of short. I'll have to check and make sure this doesn't happen when scoring points and the motor switch is running.

Thanks for your reply and partial schematic of the GI and lamp fuses. I will have to check that area when I get to the machine again.