Question about Sony STR-DE875 Receiver

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STR-DE875 bad sound right and center speaker

I recently have a problem with my STR-DE875 receiver. The center and right speaker have a distorted sound. The left speaker sounds fine, and so do the surround speakers. Tried changing cables, change the speakers but the distorted/crackling sound remains on right and center speaker. Anybody any idea?

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: No sound from rear speakers during test tone usng Sony STR-DE475

I had this problem last night.

To solve it, you can reset the amp by:

1) Put the receiver on stand-by
2) Hold down "MODE" button and press on button
3) "S.F. CLR" appears in the display and surround is back on.


Good luck

Dr Gardner

Posted on Feb 10, 2009

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  • 1 Answer

SOURCE: Speakers pop and rear speakers cut out of surround sound

Hi,
your problem is a bad solder connection of the relay linked to the lautspeaker sockets. I had the same problem and googled for the solution. Since I resoldered the pins everything is fine. That problem is well known and happens to a lot of Sony receivers.

I can send you a link with a detailed how-to-do solution with pictures, however it's written in german language. But you can use some online translators.

Here is the link: http://www.bmw-syndikat.de/bmwsyndikatforum/topic.asp?TOPIC_ID=28280&FORUM_ID=20&CAT_ID=9&Forum_Title=Geplaudere&Topic_Title=Problem+Sony+STR-DE445

Ralf (from Germany)

Posted on Feb 15, 2009

dunnbiker
  • 8546 Answers

SOURCE: Center Speaker Audio Very Distorted

Love your screen name.

You didn't say what, if anything, preceded the appearance of the problem. There might be a clue.

Can you describe the distortion? Is it excessively bassy? If so, is it happening on all sources?

I'm assuming this is a modern digital receiver that is capable of many soundfield simulations as well as native Dolby Digital, DTS, multi-channel. If so we can use a stereo source and through simulation redirect some of it to the center speaker.

Using one of your receiver's many multi-channel simulation modes, put in a CD or tune an FM station and use it to diagnose the problem during later steps.

If it's only a single source and that source uses individual analog channel RCA cables, swap in another one or temporarily move the Center Channel feed to one of the other channels to see if it's before the receiver (in the source).or inside the receiver.

For multiple sources:

Is your Center speaker defined properly as Large or Small in the receiver's setup menu?The size refers mostly to the bass-handling capacities of all your speakers rather than their physical size. Speakers designated as 'Small' will not be sent much in the way of bass because they can't handle it well. The LFE/subwoofer channel(s) will get all the bass that was intended for them instead.

If you have a Small speaker improperly defined as Large it may be getting bass that it can't handle and that might sound like distortion. Having a Large speaker defiend as Small would result in less bass than expected but otherwise 'clean' sound.

Check the speaker setup in the menu for excessive volume level relative to the others. There is usually a calibration procedure the receiver will use to help you adjust the subjective voume of each speaker using white noise or tones.

Hope this helps.

Posted on Apr 02, 2009

  • 92 Answers

SOURCE: Sony STR-DE635, Sound from left surround speaker but not right

first turn the actual volume up on that channel on the reciver then make sure your speaker wires in the rear are using the same lenght each

Posted on May 20, 2009

palaboy
  • 5807 Answers

SOURCE: Sony STR-DE197 AM-FM Receiver. Has

Inside the Receiver there are electronic components mounted on the aluminum

heatsink ( Audio Output Power Transistors )



it may looks like these :



MN2488 ( Q753 )


palaboy_78.jpg



and usually paired with MP1620 ( Q754 )


palaboy_79.jpg



You may have to check on those two pairs of power transistors

and replace in pairs.


( which means if any of the two is bad , have them both replaced )




Check also the audio signal on the right channel input , if it

is on the same level of those of the left channel.



These components are available at:

http://www.mcmelectronics.com/product/DISTRIBUTED-BY-MCM-/MN2488

Posted on Feb 22, 2011

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