Question about Sony STR-DE675 Receiver

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Headphone jack on old sony amp silent

My sony amp str de 675 sometimes clicks and looses the center speaker sound. No ive also noticed that the headphone jack has stopped working. Plugging the phones in automatically mutes the speakers ( i hear a click ) but there is no headphone sound anymore. What could be failing?

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  • Joey May 13, 2014

    I found the culprits. One is the headphone relay, and the other is the center speaker relay. They seem semi-stuck because if i press down on them slightly or give them a little tap, they spring back into action. I guess i need to change them. Oh the amount of disassembly pain I have in front of me ;)

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I have had fuses blow before. Open up the unit after it has been unplugged overnight(this may loose your settings). There are six screws, 2 on each side and 2 in the back top. Check the fuses, I believe there are 3 of them. If the fuse is blown, you can order them online. Hope this helps

Posted on May 07, 2014

  • Joey May 13, 2014

    Both fuses were ok

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  • 36 Answers

Maybe there could be a loose wire inside try taking it apart and searching for any thing loose do you have a warranty on it

Posted on May 07, 2014

  • Joey May 13, 2014

    Loose or bad relays, two of them :)

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Posted on Jan 02, 2017

IB4G2008
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SOURCE: RCA RT2760 problem

sounds like you may have blown the internal amplifier circuit.you a handy sort of person?

Posted on Apr 20, 2008

spqr163
  • 37 Answers

SOURCE: Sony center speaker and rear speakers don't work all the time

try using another speaker for the center channel and the left speaker, also watch your ohm load, most of the want a 4 ohm load. try to narrow it down to see if it is the speaker or the amp.

Posted on Mar 13, 2009

micromatikal
  • 2777 Answers

SOURCE: I have been using my

It sounds like the system still thinks the headphones are connected, that is if you are sure the regular speakers are connected correctly. Usually this can be easily reset. Just turn the system off, then unplug it from the power source for at least 5 minutes to ensure all power is drained from all capacitors in the system. Plug it back in and turn it on and attempt to play something.

If it still does not work it is possible the built in amplifier for the speakers has failed, or the headphone jack has faulted out and thinks it is permanently plugged in. You can try plugging back in the wireless speakers and seeing if they still function, then unplug them again to attempt to reset that headphone jack.

Thanks, let me know!

Tim

Posted on Oct 30, 2010

  • 21 Answers

SOURCE: i have a Sony STR-DE945

It's probably your fan.

The system runs hot, as it supplies a lot of power to push your speakers.

The system knows that without a fan, it will overheat. If the fan gets hot, the system will throw its self into safety mode, to keep it from burning its self up.

Have a tech check your fan.

Posted on Nov 19, 2010

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