Question about Sony STR-DE545 Receiver

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Surround Speakers stop working

About 1/4 of the way through a movie or listening to TV my two surround speakers stop working. My sony receiver still says I am receiving a digital sound but the two back speakers are off, even if I perform a test tone. Any ideas???

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  • chalkjhawk79 Jan 17, 2008

    I forgot to mention that when they "stop working" I am still hearing a small noise coming from them. So, they're still getting SOME kind of signal, just obviously now the right now. Not sure if that could be caused by poor solder connection or not. Thanks though I will try the tapping to see if that's the problem!

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I also had this problem. I was able to fix it by tightening the circuit board screws (which are used as a ground path). To avoid this in the future, I added lock washers and made a short jumper to connect all of the ground points back to the power supply.

Posted on Jan 30, 2008

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More then likely unit has poor solder connections. Try lightly tapping on chassis to see if you can get audio to either cut on or off with the vibration, If you can unit has intermittent solder connections probably around power amp ic701 where most of the heat is generated. I have a PDF service manual if you need it for yourself or for a technician if you take it in for repair kstahl65@att.net

Posted on Jan 15, 2008

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3. The audio level of the speaker channels must be set high enough to be audible.


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