I've been troubleshooting this for about a week now and just cannot figure out what the problem is... My Hollywood Heat pin keeps blowing F11 (1a slow blow). I've narrowed it down to the left drop target bank as being the issue. I've noticed that the coil for resetting this bank constantly stays energized until the fuse blows.
So far I've:
1. Replaced the driver board with a NiWumpf board (the original board had some hackey repairs)
2. Replaced all the diodes for the relays and the coil diode
3. Replaced all three transistors 2n879. Replaced them with 2N5884.
This hasn't resolved anything. I can't find any shorts in the matrix anywhere...so I'm not sure what the issue is. I'm debating on just replacing every part in the drop target bank and hope that resolves it. The manual isn't amazing in it's documentation of the bottom of the PF, so maybe I'm just going down the wrong path entirely.
I've already wasted around a dozen fuses in my testing...so I'm kind of out of ideas. Any help is greatly appreciated.