Question about Sony STR-DE475 Receiver

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SONY RECEIVER STR-DE475

ALL COMPONENTS WORK FINE THROUGH THE SPEAKERS, BUT WHEN I SWITCH TO THE TUNER I GET A HUMMING NOISE AND THE RADIO STATION IS FAINT, THIS PROBLEM STARTED INSTANTLY THE RECEIVER HAD BEEN WORKING FINE UNTIL THE PROBLEM OCCURED

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  • hutchdm Jan 08, 2009

    same problem. Out of the blue I now get a loud buzz rather than the radio. The radio can be heard in the background. It does not seem like a reception issue as it is the same volume on any station - very annoying.

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5 Suggested Answers

  • 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

dunnbiker
  • 8546 Answers

SOURCE: Centre speaker stops functioning

Is the audio for the center channel driven by its own amp? No other channels on it or affected?

Assuming you're not cranking it up to "11" to rattle the walls...

I think what you're hearing is the protection relay dropping out - removing power from the output stages of the amp when the amp thinks something is amiss. If it turns on OK after being OFF for a while and repeats the loop you probably have a heat issue.

A solid click OFF that is not resettable would possibly be a short in the speaker path - shorted speaker wire or speaker.

Check the amp to see if it was hot to the touch or getting warmer up to the point it clicked off.

Is it ventilated properly with no heat-producing components below it? Clean out its vents and make sure it can breath. If it has a fan make sure it's working and has good airflow.

Posted on Apr 02, 2009

  • 1 Answer

SOURCE: working the Sony STR-DE475 5.1 Channels Receiver

It has a dedicated sub out. you need a phono connection on one end for the amp and the other end must have a compatable connection to your sub.

You will need a phono connection to the amp from your TV. You can utilise a scart lead that has phono outputs however a TV with audio outs (the red and white leads) is the default option.

Posted on Jun 02, 2009

  • 82 Answers

SOURCE: i have a sony STR-DE475 and the surround speakers

have you checked ur cables and connectors? check them with the multimeter and confirm

Posted on Jul 09, 2009

dunnbiker
  • 8546 Answers

SOURCE: Subwoofer hum from STR-DH800

That points pretty much to a bad shield on the cable. Have you tried another one? Another thing to try is to rotate the AC power cord on the sub (if it has one). Sorry, too lazy to look it up.

Posted on Dec 29, 2009

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