4 player Konami cab - no power getting to monitor or marquee light

sugar_ray

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4 player Konami cab - no power getting to monitor or marquee light

4 player TMNT cab. Everything worked fine a couple of days ago. Sanded down both sides of the cab. I took out the coin doors and front kick plate that houses the coin doors. Now upon putting it all back together the PCB is getting power and is playing audio blindly. However, there is no power getting to the monitor or the harness that leads up to the marquee light. Both marquee light and monitor worked fine before the stripping process. I tilted the cab slightly during sanding but nothing major as all internal wiring and monitor remained in tact.

All visible fuses are fine. The only thing that I undid was the ground strap that was attached to one of the coin doors. Holding that to another ground seems to do nothing. I still have power at the coin door bulbs.

Anyone have a schematic for these cabs? Seem to be getting power everywhere except at the monitor and top light??
 
Stupid question:

Are you sure the switch just isn't flipped on the top, or the 'interlock' switch isn't open on the back door?

Sometimes people replace the power supplies, and hack it in so that it's always on. So it'll come on by just being plugged in, but the monitor and marquee wont' turn on without hitting the switch.
 
good suggestion. The toggle switch does exist on top of my machine, however, there is nothing wired to it. It was hacked out at some point by a previous owner
 
BLINDER then a bat I tell ya!! Was a wire that had come off the transformer. Plugged back in and all good
 
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