Question about Technics SA-EX510

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Technics sa-ex510 about 10 years old. for some reson the surround sound isn't working. wirers are all connetted. setting are all the same. hit help, says it's working correctly. when I hit the TEST button, the left speaker works fine, center no sound and right speaker garble, nothing from surround speakers

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  • Anonymous Feb 04, 2009

    I have the same problem it could be the relays that switch the sound around

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3 Suggested Answers

  • 1 Answer

SOURCE: Technics sa 400 Receiver

Checked fuses then sprayed contact cleaner on the fuses and the fuse holders. The speakers began to work correctly.

Posted on May 29, 2009

  • 1 Answer

SOURCE: Technics sa-g78 no sound from front speakers

Buy yourself a nice Krell amp!!

Posted on Jun 25, 2009

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SOURCE: I have a Technics SA-EX600 stereo receiver and

I have the same reciever for sale. Make me offer 909 9289515 Chris

Posted on Nov 17, 2011

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http://service.us.panasonic.com/OPERMANPDF/SADX930.PDF

The manual says to do this:
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If this helps, please rate my response.

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hiya

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The most likely culprit here is the output protection relay. The contacts are a little corroded and the higher volume "jumps the gap" temporarily "cleaning" the contacts. The relay should be changed. I don't have the manual with me, but the following relays are in the unit. One of them is the speaker relay:

Part # Cost
RSY0054-C $12.63
RSY0040M-0 $ 5.89
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Dan

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