Quoted from bcd:You should see a reading of approximately 70000mV on each I/O board. None of them show that. Even on boards 1 and 2, you're only seeing about 12V.
I would check all of the wiring that carries power to make sure it is firmly inserted everywhere. Also might be a good time to pull out a multi-meter and probe where the voltage is falling out.
Sorry, that's my fault. Those were with coin door open and high voltage off. With the high voltage on they're reading around 71,000.
Here's where I'm at. I've got all I/O showing ok voltages. I've unplugged one leg of the plunger coil. All other switches and coils seem fine. With the plunger coil plugged in, the coil fires when the game is turned on and it will blow one of the high power fuses. The game ends the skill shot without the launch button being pressed.
The launch button seems to work fine in switch test as does the shooter lane switch. Neither show up in the active switches unless pressed.
The game auto firing the ball into play as soon as the ball was ejected into the shooter lane was happening intermittently since I got the game. I'd played less than 10 games on it.
Any ideas?