Thanks for the reply Lou,
Yea, I did check the pots, solder joints, bias circuit parts, etc, (all the normal stuff). I did notice that the +VCC went up to 91 volts upon power-up and the -VCC went to -2v (referenced to chassis) ....Compared with +/-50 on the good side. That's why I posted looking for the real schematic.
After looking at the correct schematic for this mainboard & amp combo, which is Crown Drawing # J0697-3 (thanks to Crown Tech support), I found Q216 (pre-driver) shorted in the "low side"... Replaced it and all is well.