Question about Sony STR-DG910

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Sony STR-DG910 goes into protect mode when I hook up Monitor 50's to my 2 front speakers and turn the volume up to mid levels. With all infinity surrounds I can CRANK the volume without going into protect mode. Any ideas?

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Posted on Jan 02, 2017

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marsrover
  • 682 Answers

SOURCE: STR--DG910: no rear speaker sound, no center speaker sound

if you confirmed all connection repeat your speaker setup.

Posted on Aug 02, 2008

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SOURCE: I have low volume on two channels of my STR DE975 receiver

this may be due to loose connection. try to fix the connection both from the power supply and device. If that doesn't work change the channel using the guide that was given with the device.

Posted on Aug 20, 2008

tech48
  • 624 Answers

SOURCE: Receiver goes into protect mode when hitting certain volume level

There is a problem in one of the output channels of the amplifier. That is the only reason it will do this. I work at an authorized Denon service center and have seen this problem several times, but it has never been the same thing that causes it. It has always resulted in extensive troubleshooting to find the problem. One time it was a capacitor in the pre-driver circuit for one of the channels, another time it was a transistor in the same type of circuit. I can not remember all the other causes. But without the proper tools and the knowledge of how to troubleshoot an amplifier circuit you will never figure it out.

Since this is an older model, more than 3 years old, it is no longer under warranty. They get a 2 year warranty from Denon. You can take it to any service center that works on stereo equipment and they should be able to fix it for a reasonable fee. Probable around $125 to $150 depending on their rates. It may seem like a lot, but it is much cheaper than buying a new one.

Since this is really the only option for you, unless you have the tools and knowledge, a FixYa! would be much appreciated and appropriate.

If you would like to troubleshoot it yourself, let me know, I have the service manual in PDF and can email it to you if you like and help you with troubleshooting it. But be aware, it is not an easy job.

Dave

Posted on Nov 10, 2008

  • 336 Answers

SOURCE: Sony STR-DG910 is in protect mode how do i solve

Most likely it needs repair of one of the output channels. Pair of transistors and a couple of resistors probably.

Posted on Jan 31, 2011

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1 Answer

Sony STR-DG910 is in protect mode how do i solve this?


Most likely it needs repair of one of the output channels. Pair of transistors and a couple of resistors probably.

Jan 31, 2011 | Sony STR-DG910

3 Answers

GOES INTO PROTECT MODE


Before you throw it in the garbage check all the speaker wires, if you have one strand of wire touching the case of the receiver that acts as a short to ground and will make it trip into protect intermittently.

First things first unplug all speaker wires and see if it turns off, if not reconnect them one by one until the unit goes off.

Hope this helps,

Thanks!

Jan 04, 2010 | Sony STR-DE597 Receiver

1 Answer

My right front speaker does not work and when I have the volume over a certain level "protect" is displayed and it stops working


if the speakers are more watts than the amp puts out or if u have to many speaker wires laced into one port the protect mode will switch on

Dec 13, 2009 | Sony STR-DE575 Receiver

1 Answer

When iturn on my Sony STR-DE325 it goes into protect mode


Try disconnecting all of your speakers, and then turn on you unit. If you have a defective speaker, or a short in your wires, your unit will go into protect mode. If your unit seems ok with the speakers disconnected, then turn unit off, hook up one of the speaker leads and try it. This way you can isolate the problem.......

Good Luck,

Eric

Jul 09, 2009 | Sony STR-DE325 Receiver

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

STR-DE445 Works, but goes into protect when you turn up/down volume


This is a piece of **** unit. Mine only works on the left side, sometimes. When those times are I have NO idea. It doesn't seem to play 5.1 correctly and it goes into speaker protect mode for NO reason. It is TRUE lemon !!! ..let me know if you have any other problems with this JUNK .....schafe1001@aol.com

Aug 28, 2008 | Sony STR-DE445 Receiver

1 Answer

STR--DG910: no rear speaker sound, no center speaker sound


if you confirmed all connection repeat your speaker setup.

Jul 06, 2008 | Sony STR-DG800 Receiver

1 Answer

Stuck in protect mode


Speakers shorted out, blew a fuse. Replace the unit or (cross your fingers and) open up the box and find the blown fuse.

Nov 23, 2007 | Sony STR-DE425 Receiver

2 Answers

Unit going into protection mode


You should first have or check the impedance and resistance of the speakers. then if all the speakers and wiring checks good, the only way to tell if this unit is good or the output section has no problems, is to hook up load resistors to where the speakers go, insert 400 to 1000 hz @.775MV into an input, hook up an osilliscope to the load resistors and slowly turn up the volume and see if the waveform clips before it shuts down. I doubt if you will have the equipment to preform these test but a good repair shop will be able to help you out. If it does not clip or go out then its all speaker wiring and/or the speakers.

Oct 04, 2006 | Sony STR-DE575 Receiver

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