Question about Sony STR-DB870 Receiver

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No audio reciever will not operate and displays protector on the display

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  • 4nik8r Nov 04, 2008

    what are the ic's

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  • Sony Master
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Audio amplifiers IC´s damaged you need to change it

Posted on Nov 01, 2008

  •  Francisco Mauricio G
    Francisco Mauricio G Nov 05, 2008

    the Ic´s are the parts who amplified the sound on your device they are put in an aluminum heat sinker

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1 Answer

The display shows PROTECTOR and there is no sound


This means that the amp has detected a short, or low impedence and has shut down. check all the speakers for bad connections and shorts.

Apr 18, 2015 | Sony Stereo Reciever Str-d1090

1 Answer

Sony GX800ES protector


Make sure none of the speaker wires are touching each other. If they are, it will short out the stereo which triggers protection mode and cuts out all of the sound.

Sep 21, 2007 | Sony STR-GX800ES Receiver

1 Answer

My STR-DE925 reciever isn't giving me any sound. When i turn it on everything works like normal, kicks on, and there is a click; but after a few seconds the display switches from whatever input it was on...


check speaker connections.sounds like the system is trying to stop some thing more serious happening by shutting itself down.a pain yes but saves blowing something up.if no luck,then definately send in for repair

Oct 17, 2010 | Sony STR-DE925

1 Answer

The word protector is displayed


If protect is coming up on the display, it means the system is detecting a short somewhere on one of the speakers and so is turning the amp off to avoid damage.
Check all the connections at the back of the amp to ensure they are not shorting, and at the back of each speaker, if nothing is found there, check each wire for damage (like squashed or rodent damage).

Mar 06, 2010 | Sony STR-DE705 Receiver

1 Answer

I hava an accurain 5048,reciever sound shuts off,protector reads


as you have described the unit is in protect mode. disconnect all cable/wires to this unit. - and try again. if it is still in protect-a definate short within this unit.

Mar 06, 2010 | Audio Players & Recorders

1 Answer

TXSR875 reciever display


Hi and welcome to FixYa,

Two possibilities:
  • the Pure Audio feature has been engaged. This turns off the receiver's front panel display;
  • heat related issue. A common fault that develops is component failure, specifically, R9304, a 10 ohms dropping resistor connected inline with the +44V display supply.
Should you be considering a DIY (do-it-yourself) repair, please postback for procedures. Otherwise you may have to seek the services of an authorized service center (specially if under warranty) or a qualified professional

Hope that this be of initial help/idea. Good luck and thank you for using FixYa.

Mar 31, 2009 | Onkyo TX-SR875 Receiver

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Sony str-de525 system "protector" problem


You've blown it. It recognizes a potentally harmful situation and goes into protect mode.

Mar 15, 2009 | Sony STR-DE935

1 Answer

My reciever turns itself off


You most likey have a wire short on your center or rear surround speakers. The wire short will be between the + and - points of the speaker wire.

To find the problem speaker, disconnect one of the 3 speakers at a time from the back of the sony and see if the problem goes away. Once you identified the offending speaker, check both the sony side and speaker side for the short. The small wire strands are hard to see and it only takes one to trip the protection mode, so look carefully.

Mar 07, 2009 | Sony STR-DE845 Receiver

1 Answer

My denon reciever display wont't work


I read something the other day in the user manual about re-setting the microprocessors if the display doesn't display properly. Turn the amp off.  Hold down the input mode & analog buttons while turning power on. The whole display should flash on & off at 1 sec intervals, then release the two buttons. This resets the microprocessors & supposedly fixes display problems.

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4 Answers

Pioneer vsx-d307


You have a flashing "mute" on the display?...accordianman

Oct 04, 2007 | Pioneer VSX-D307 Receiver

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