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I have a sony hcd vx8 which had a problem with protect push power,so i read some of the solutions from here about changing STK411-240e.After changing the ic,the protect push power was gone but no sound.It started producing a bad & small sound then after adjusting the volume to around 20,protect push power was back,so i switchrd it off by unpluging from mains then on again & push power was gone but still no sound.The back relay clicks when i power the receiver.

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  • 166 Answers

New faulty amp IC ?

Posted on Nov 26, 2014

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Posted on Jan 02, 2017

SOURCE: push power protect comes on

The audio amplifier IC are damaged you need to replace him

Posted on Aug 20, 2008

SOURCE: We have a sony stereo

Always be that legend for the audio amplifier IC damaged you need to replace him

Posted on Aug 12, 2008

  • 1 Answer

SOURCE: Denon DRA-25/25L Stereo Receiver.

Without looking at the schematics for this particular model, I'd surmise that the click is indeed a speaker protection relay. Generally this is fed by a number of different sense circuits that watch for power amp issues and/or excess speaker current and/or power supply output stability. Although the relays do indeed fail at times, generally it is not the relay that is at fault. If you have a scope and a schematic, you can check the various circuits that feed the relay for the exact cause. If not, you can do some experiments that might help deduce the problem: e.g. do headphones work when speakers do not, does the relay click on when no speakers are connected (or selected), etc. In my experience, it is most often the output transistor(s) in the power amp. But not always ;-)

Posted on Oct 15, 2008

  • 1 Answer

SOURCE: Panasonic error code

Take the case off and clean out the fan, it worked for me, it was the protection circiut kicking in to prevent the amp from blowing.

Posted on Feb 18, 2009

  • 1 Answer

SOURCE: sony str-de845 powers on, relay clicks sound works

Hi there, can anyone help me? i cant seem to get my aiwa-d58 to get out of eco mode. no power, red light is on and every time i press the power button; the eco light clicks off and i no power supply to the whole unit. please help!

Posted on Jan 22, 2010

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