I just got a broken punch 60ix(pc764f), replace both power fet's and one output fet, I applied power, and it draw around 20amps and the C12 and C13 are getting very hot, what could it be the reason?
update.......blow of the same output fet (Q143) and I just cut the legs off to tested and did not draw any amps like before and the other channel worked, what is causing that i keep bowling off the same fet?
The other one seams ok and yes, the bias are all the way down, also I'm reading around 22v on the speakers output terminals?
Seems? You need to be sure.
Desolder the gate leg or the gate resistor and post the resistance from the gate terminal to the other two terminals.
Desolder the gate leg or the gate resistor and post the resistance from the gate terminal to the other two terminals.