I cant figure out what is causing this amp to go into protect. I have the rectifiers removed. I've narrowed it down to 1 bank of the power supply. When I put in 1 fet per bank 1 bank at a time it powers up fine until I get to the bank I've circled in the pic. If I put fets it it protects. If I take them out it's fine. The drive wave to that bank looks identical to the waves to all the other banks.
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Those DD amps can be real pain to troubleshoot. It’s hard to tell from the picture, but I think I see an extra low voltage winding on that transformer so it could be something defective down stream in the output section that is being driven by that low voltage supply. Try to follow the traces to the components that the extra winding connects to and check all those components.
You are correct. There are 2 extra windings. I believe they are going straight to the 12v regulator