Amp Repair?

[DTolo]

I have an old Phoenix Gold Tantrum series amp in my garage. I wanted to try and fix it. Does anybody know of an amp repair place, or better, somebody who has done it, so that I may get the schematics to fix it myself. I don't know what readings I should be getting from what.

Problem with it is, as soon as the amp recieves the switch on signal (+12VDC) on the remote wire, both 30AMP fuses pop.

Was an awesome amp when it worked, pushed my JL10W7 no problems.