OP

Quoted from Lermods:

Unfortunately, I need to resurrect this thread. I sold the game to a pinsider, he gets it home and F7 starts to blow again. The game was splaying perfectly the last three months, but once it was moved something seems to be causing the fuse to blow. He says it blows when one of the pops fires and I’m thinking it might be related to a flasher associated with the pops, since the pops aren’t on f7. The only flasher I think that goes off is the one in the center of the pops, but does anyone know if other flashers go off? Maybe something in the backbox or behind the backboard?Can he put the game in diagnostics and test each flasher and coil individually to see when the fuse blows, or will that not work?

OP

Quoted from Lermods:

Can you test a transistor using a multimeter, by for continuity between the metal tab of the transistor and the ground braid? If you get a buzz it's bad?

OP

Quoted from Lermods:

Q42, which controls the scoop is bad.

OP

Quoted from Lermods:

Well, I can’t say that I understand how this was fixed or what caused it, but new owner says that while q42 was blown, fixing it didn’t resolve the problem and f7 was still blowing. The tech said q3 and F8 were also blowing and replacing them ultimately fixed the issue. I have no idea how q3, which is 50v and for the flippers, has anything to do with F7, but I’m at least glad the guy now has his game working.
I’m still also baffled how it can be working perfectly the night before I meet the guy, then he gets it home and all he’ll breaks loose, not to in any way fault the buyer. Only thing I can think of is perhaps vibration of the trip caused some issues, but otherwise I have no idea.