Sony STR-V444ES

kick in the relay.

Bad transistor responsible for switching the gnd path for the relay coil.

No DC offset on the audio up to the relay on either channel ? If there is any, the protect circuit will inhibit the relay.

Arfa

Ahhh...good point. Yes, look for any DC at the output.

I think I've seen bad 1 ohm resistors in the power supply cause this. In the rear corner of the machine.

Mark Z.

Good point Afra

I think I've seen a couple bad 1 ohm resistors in the power supply cause this. They're at the rear corner of the machine.

Mark Z.

Thanks mark.. Anything more specific on this 1 ohm resistor? location # perhaps?

i saw a few other posts of people complaning of the same problem, with no reply's of course, in other fourms on the web. Ive put my Voltmeter on the outputs at the relay, i get 0.01 volts DC not enough to trip any protection circuit's. thats why im seeking answers more like what mark has posted. Known problems that ocassionally rear thier head.

I dont have the sony database of tips anymore cause I no longer subscribe, (i just dont do repairs like i used to) but perhaps there is a sony bulliten on this issue?

R804, R805 in the rear corner pf the machine, the side where the power cord comes in, as I recall. The board is called the "DC" board.

You may mail me directly at:

snipped-for-privacy@labolgcbs.net

and reverse the domain name.

Mark Z.