stevem Messages: 4735 Registered: June 2004 Location: NY
Senior Member
Welcome!
Yes, your problem is likly to be the same and likly to be a blown output transistor( TO3 type mounted on chassis heat sink) which sometimes also takes out its driver transistor(TO5 type in heat sink box on driver board)when it pops.
Also likly to be bad would be the 5 watt resistor associtaed with that side of the output stage.
Your rectifier bridge diode may also be bad, this is the round case 4 terminal item bolted down to the chassis near the power transformer.
A good way to check that is to unhook the red and green wires that come from it from there termination point on each power supply filter.
When unhooked and place out of the way from shorting, replace the fuse and turn on the amp, if the fuse holds them you know that the power supply is ok and the problem resides in the output stage/driver section of the amp.
You could also disconnect the output side of each power supply filter(red and green wire) and do the same test.
Do not hook up a test speaker to the amp until you have it fixed and the steady state DC reads less than 1 volt on the amps speaker output other wise the 40 volts of DC output can blow your speakers.
Inform us on your progress, or if you need more help.