I have a test pad for the ground on the power module board. How would I test this? Normally I put the black on the ground braid and red on test pad. Would this be the same for the test?

and what setting on my multimeter to test the ground? Thanks

Trying to solve no backbox lights. My TP4, general illumination was good at 7.5vac. TP3 was high at 15.5 compared to recommended 11.9vdc.

That makes sense. Thanks. It would have been pretty cool though.

I have no backbox lights and no sound. Controlled lights seem okay.

I'm really new to the multimeter (if my first question didn't give it away, lol)

I put the red probe on the pins where it (the wire from rectifier board)connects to the boards in the backbox? and then the black probe on the ground pad on rectifier board.

If the controlled lights are the flashers, then they work. Flash Gordon flashes on and off. The strobe does not work. It did, it’s an aftermarket red strobe board.

So my issues. No backbox lights, no strobe, no sound. I believe the sound is related to the backbox lights. But I’m trying to tackle lights for now and hoping that resolves the others.

For back story. The cab was restored. When I was putting everything back together I mistakingly switched the backbox lights and the small strobe transformer on the rectifier board. I believe they are plugged the same. Stupid mistake I know .

When I plugged the game in I saw a wisp of smoke from display number one. I can see no physical damage. The original displays did not work after my error, but have now been replaced with LED ones and work fine. The rest of the game appears to play fine.

I’ve always been afraid of the multimeter, but I am ready to fix this for once. I spent a lot of time restoring and I would love to get this back in action. I have replacements for all the connectors, but haven’t done anything yet.