I have an unusual one. I have a Strato-flite that won't advance the ball count stepper upon ball drain. When I checked for power at the coil I had 33volts (machine was high tapped) at the coil lugs. The 33 volts are there as soon as I power on the machine even before I press the left flipper button to engage the lock relay. The coil itself isn't engaged and I suspect the coil may be fried.
I checked the N/O cam switch and is open. Anyone have any ideas?