Lenoir City, TN
Quoted from GRUMPY:Put a new battery and retest.
I may have not been clear on this but you always replace the diode when a coil has locked on, even when the coil is not melted. The diode has been stressed and may short at any time after. If it shorts after you replace Q-78 and Q-79 then all of your time and work is for nothing as it will wreck Q-78, Q-79 and maybe the coil again. This is not worth it for a .07cent diode.
Congrats to you sir for the very specific info to a brand new game owner! You are an example of the best Pinside has to offer!
Quoted from BroMike:I don't have another DMM, but I think mine might be reading low. The 9v battery in it is only measuring 7.5v but I'm not sure if that would cause the low readings. I measured all 11 and they're all about the same: 3.9, 3.8, 3.9, 3.8, 3.9, 3.8, 4, 4.1, 3.7, 3.9, 3.9. The one that previously measured 3.6 is now showing 3.7. I might just replace the diode on it along with Q78 and Q79 and see where that gets me.
...and to you BroMike. With your "I'll try anything" attitude, you're going to be a pro in no tjme.
Congrats on the new pin ... one of many to come I hope 
