I had it off the reference line perry I was looking at something. And moved it. My fault. It's oscillating and running drawing 1.25amps at 12.7vdc. all looks well I touched up alot of soder joints throughout the board.?
Two of the 3415 are running a bit warm and they do not match date codes. Someone else changed these I believe I bought the amp. For 35 online to repair it. I changed a few diodes, the ic, lm339's. Touched up soder joints.
It's shorting my outputs transistors on one bank. The set that was mismatched I was removed and replaced with four new transistors it instantly shorted them?
With good FETs installed (you can use the ones you pulled if they're not leaky/shorted) and the rectifiers removed, you can check the drive signals with the scope ground on leg 3 and the probe on leg 1. Do not try this with a mains powered scope with the rectifiers in the circuit.
