I’m trying to learn how to diagnose and repairs problems with my Big Guns machine.
My situation:
I’m very new at this, have very basic understanding of electrical circuits and don’t own a soldering iron (yet). I do have a multimeter. So far my only successful repairs have been replacing a fuse, replacing some rubber parts and basic switch adjustments. I bought the game from a private collector two years ago who did an excellent restoration/recondition, power source conversion, led conversion, etc.
My problem:
I have about 8 lamps that are not lighting. These are not lamps that cycle through during the diagnostic test. I think that is because they aren’t activated by gameplay. These are ambient lights in both the play field and the backbox.
What I’ve figured out so far:
- The affected lights in the backbox are on the upper right surrounding a flasher.
- in the play field they are on the right side, starting at the kicker and going up the side.
- all wires leading to the lamps that are out are purple
This seems like a fuse issue to me. I’ve tried to test some fuses, but I didn’t find anything. I’m second guessing whether I’m using the ohm meter correctly for this. Visually none of the fuses look blown.
I’ve attached some pictures.
Thanks in advance to anyone who can give some guidance. I love this stuff, but when I read these forums I realize I have a LOT to learn.
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