Quoted from AlexRogan84:So the bulbs look right. I can see a faint 1251 on them. I’m not convinced the bulb holders themselves are allowing for good contact though. Like you can rotate the tabs at the end of the holder that the wires are soldered to. I’ve seen this before on old bulb holders where the spring inside has worn out. Rotating the tabs if you do it just right can sometimes get them contacting again. Inconsistent though.
I was wanting to trace out that wiring though as well. I can see both pairs (from the red domes too) combine into a quick connector. Can’t seem to see where it terminates in the backbox. Anyone know?
And that coil test for those orange domes. I believe it’s the coil test called “panel lights”. Is that the right one? I can select that one and nothing happens. No clicking noises and no lights. Hoping to look at the source on the circuit board connectors if I can get some help figuring out where they go.
I'd put the machine in test mode and get the playfield so you can access those globes. Check the voltage all the tabs relative to ground. It should be 25v or so. If it isn't, check fuses and the power side of things. If it is, check the grounding side of things.
Power side of things:
Unfortunately the bit of the manual you want is chopped in the scan. Pages 81 and 82 of the PDF from ipdb or page 69 in the actual manual have the diagram for the controlled solenoids. Solenoid 15:
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Q14. Red power wire, Brn-Vio ground wire.
Page 84 pdf/70 real manual shows the wiring and connectors for the aux power driver:
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5J11 pins 8,9 and 10 should be connected to the power side of the globes.
The ground side of things:
The solenoid table at the start fo the manual:
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shows the cpu connectors, the playfield cabinet connectors, etc. You should be able to buzz those out with a meter.
I'd start grounding the tab of Q15. If the lights come on, the grounding wiring is ok from the globes to the CPU and the issue is in the CPU board.