Denon AVR-588 going into protection

[sdmfinokc]

On power up or coming out of standby the unit goes into protection. Quick and simple checks I have already done is check incoming voltage; speaker impedence is 8Ω; speaker lead polarity is correct; no stray wire strands against the chassis; and I also reset (initialized) the microproccessor. This unit is fairly new (approx. 2 yrs. old) and it has not by any means been abused. A day in its life would be radio and CD playback at a low to moderate volume. I live in a apartment right across from the manager. Any help would be greatly appreciated.

 

[Nigel Goodwin]

It's normally a sign of an amplifier failure, if the amp connected to the speakers it would probably blow them (high DC voltage out), that's what it's protecting.

 

[Diver300]

Check the main output transistors to see if they have failed short circuit.

I had a similar problem with a Harmon Kardon unit.

 

[leal]

Denon AVR-588

what have you found in the circuit? have a protocol.