Punch X360.2 schematic / advice

No, it's just a bench supply. I have two supplies, one is limited at 5A other is limited at 10A. Both repeatedly hit limiting before shorting C2. The same amp did not hit limit at all before it was damaged (I tested it on the bench for him a while back). Even with C2 shorted, it still hits limit on initial poweron.
Remove the C2 jumper and jump across the collector and emitter of Q18.

Clamp the transistors tightly to the heatsink.

Connect your meter across one of the 0.1 ohm source resistors in one of the channels and power the amp up just long enough to read the meter. Do any of the resistors read above 0.000v DC when you power up the amp?

DC voltage on all terminals of the LM339. Copy and paste the following list and fill in the blanks. If there is no blank space after the colon, add one between the colon and the numbers you enter. It makes it much easier to read.

Pin 1:
Pin 2:
Pin 3:
Pin 4:
Pin 5:
Pin 6:
Pin 7:
Pin 8:
Pin 9:
Pin 10:
Pin 11:
Pin 12:
Pin 13:
Pin 14: