So I picked up a Volcano that had already been restored. Really clean with Rottendog MPU and NiWumpf driver board. The pin played fine for a couple of days then suddenly would not start a game.

I adjusted the trough switches first, no help. Now the pin will not go into attract mode and the dsiplays are off. Some of the controlled lights on the playfield are frozen on others not. There is a hum/Whine from the speaker when tuned on and when I turn the pin off I get noise from the speaker after the off switch is pushed - delayed after pushing the on/pff switch.

Voltages at the fuses on power supply are missing.

Not very well versed with these Gottlieb pins so any help is greatly appreciated.