NAD 2240PE
 

I needs schematic for this amp. I thought I had it fixed but when I turned
up the volume...poooofff......went a few transistors again, only the PNP
side of the amp.blew.
I suspect the switching circuit to a higher voltage on power peaks is the
culprit(a 40w. amp.but switches to approx 120W. on volume peaks).Thanks for
any help you can offer.