I'm working on a Theatre of Magic that has just been a nightmare. I've spent weeks cleaning up and undoing hacks. It finally works with one exception.
Fuse F104 keeps blowing. The manual says it is for coils 9-16, but that is not right. It is coils 1-8. I have a 3 amp circuit breaker on it atm and it SEEMS to be popping when it is locking balls in the subway. I have tested the coils, everything seems good. I have run each coil on an extending repeating test, individually, for 5 minutes each. Breaker never pops, unless I am playing the game. Will not pop in test mode.

Any one have any thoughts on this one?
Thanks,
Randy

I have and it ohm'd out ok.

Ok, flipping the ribbon cable has made no change. All the coils ohm out ok, wires seem good and secure. Grounding each coil will make it fire.

I’ve noticed this, when you lock the first ball in the magic box, it kicks out two balls into the trough. Then when you lock the second ball it registers that. Locking the third ball, does nothing. But with the balls in the subway in the switch level test, I see lock 1,2 and 3 activated.