Question about Sony HT-DDW700 System

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Surround sound keeps shuting off

Every time the volume gets loud the system goes into protect mode and the whole thing shuts off!

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The system go to protect mode in case of trouble in output stage(power output component and cords and speakers.
try to connect each speaker one by one until you find the bad one change cord first for the bad one and check if not working you must change speaker itself.if all above does not solve the problem you must pass your sony to service center

Posted on Apr 04, 2008

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It'll work listening to the radio just fine for about 5 minutes, then the sound goes away.


If you are running at high volume for even a short period of time, the overload signal to the microprocessor(computer within your unit) will cause the unit to shut down. If you are running it that loud, try turning the level to 1/3 of your normal listening mode. If it runs, try to keep the volume with reason.

Aug 04, 2015 | Home Theater Systems

2 Answers

DVD system shuts down during DVD play with various parts of shows


I think this is the answer you are looking for.

Let me know if you need more help.

Knowledge Article C337191 Error: The message PROTECT or UNPLUG shows in the display.
Follow this procedure to troubleshoot when a PROTECT or UNPLUG error is displayed.
IMPORTANT: The top of the receiver must have proper ventilation to keep from over heating.
  1. Reduce the volume level.
  2. NOTE: If the receiver is played at the maximum volume level it may enter the PROTECT mode. Maximum volume listening will cause the receiver to run hot and drain the output capacitors.
  3. If both the A and B speakers are being powered by the receiver at the same time, turn off the surround sound option.
  4. If protect occurs only when using a DVD player, the sampling frequency may be set too high.
  5. NOTE: Some receivers provide compatibility with the higher sampling frequencies through alternate connections. Consult the user manual for specific information.
  6. Ensure the speaker wiring is not damaged and is properley connected to the back of the receiver and speakers.
  7. If the issue is still unresolved after completing all of the troubleshooting steps, service may be required.
Created: Thu Sep 16 14:49 2004 | Last Modified: Wed Jan 11 09:02 2006
http://www.iq.sony.com/srvs/autoresponsev4.asp?id=337191

Feb 13, 2008 | Sony DAV-FC7 System

1 Answer

No sound from zenith dvt412 stuck in bypass mode..how to override?


this is a protection circuit.
When bypass mode then it means that something in the power supply module has failed and the unit then goes into protection mode to protect the board components.
Your surround sound need service from a qualified tech. No other remedy.

Mar 24, 2010 | Zenith DVT412 System

1 Answer

On my Sony Surround Sound tuner, if I raise the volume up to a certain level (not that loud), I get a flashing sign ''protect'' and the sound to the speakers are cut.


Sony has protection in these receivers for two main reasons.

1 - Checking for DC voltages on the outputs to speakers. Not your particular problem.

2 - Excessive current being drawn from receiver on one or more of the speakers.

Number 2 should be your starting point in finding a solution. Put the volume level on Medium - 35 to 40 on the front panel. Now listen to all you speakers in turn. Any scratching noise will indicate a defective speaker. Remove this speaker from the receiver output and check again if the set goes into protection on high volume.

If you could not find any strange noises on the speakers, remove them one by one and test the set on high volume.

Never - attempt to disengage the protection on this amplifier. The only times we have found the amplifier to be defective with this protection error, it has done so no matter the volume level. Therefore I believe your problem to be a speaker or speakers.

Good luck!

Sep 13, 2009 | Sony Home Theater Systems

3 Answers

I can't get surround sound from my theatre system


Read your manual , there is a level setting for each channel as well as a test function. Also remember most media on pro-logic mode dont have to loud sound from the rear speakers. Only a forced mono mode may give you louder sound at the rear. Regards PSP

May 12, 2009 | Home Theater Systems

1 Answer

Low sound when turned to AUX for surround sound


remember to turn the volume up on the cable box and down on the surround sound so you will get max audio input to the surround system and then adjust using the surround sound remote! good luck

Jan 11, 2009 | Panasonic SC-HT680 System

2 Answers

PROTECTION MODE


The unit may be experiencing an overload caused by a short circuit, internally or externally. Try disconnecting all the speakers, then turning up the volume. If nothing happens, connect one speaker at a time and turn up the volume to see if you get more sound. You may have a speaker that has shorted internally and this will help you discover the bad one. However, if when you have all the speakers disconnected, and the unit still goes into protection mode with the volume up, then there is a problem with the unit itself.

Hope this helps, and please rate my advice, good OR bad.

Good luck!

Feb 04, 2008 | Home Theater Systems

1 Answer

Musical outut is loud and clear, voice can hardly be heard


Reset your surround parameters; you are asking too much out of your system, as it's going into "protection mode"....accordianman

Sep 28, 2006 | JVC TH-M606 System

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