Question about Sony DAV-DZ100 System

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Need help protect unplug

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I think, your Home theater gives you error message " protect unplug", means home theater has problem in Amplifier section and will not be power up to function.
You should check Amp section aspacialy Amp Output stage.

Posted on Jun 04, 2008

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When I turn my dvd player on, the volume will lower on its own to almost mute. It is hit or miss weather or not the unit will turn off on its own saying protect. All connections are good. Inside is clean....


When you've got good volume, try unplugging the speakers (only for a very short time) to see if that whining noise is still there or if it's stopped. We're trying to see if the whining is related to the low volume and "protect" or if it's only coincidental.

Try unplugging all the cables (except the power cord). Turn the player on & off several times & see if that whining noise acts the same. Also see if the player goes into "protect". What we're trying to do here is see if it NEVER goes into "protect" with the cables unplugged.

Last... try to get it to start & run without going into "protect", with all the cables unplugged (except power). Plug the cables in, one at a time, and see if plugging one of the cables in forces it into "protect". If so, there's something wrong with that cable or whatever's on the other end of that cable. Unplug it again & restart the player - no "protect"? Wait a little while, plug the cable in. "Protect"? Check the other end of that cable.

If it goes into "protect" with nothing plugged in except the power, then the player is probably a write-off, ready to be replaced (it's not very often that DVD players are worth repairing these days).

Nov 05, 2013 | Samsung HT-Z310T Theater System

1 Answer

Sony home theatre system


Hi,

Good enws is yout unit is not fried. Bad news is you need to get the protection fuse replaced...

Mar 04, 2008 | 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

I have a Sony receiver STR-DG510. I was playing music through the receiver when it suddenly stopped and displayed/flashed protect. After unplugging everything and trying a different power outlet it still...


Most likley it is a bad channel. Needs output transistors and a couple of resistors. or it may need a pre-amp voltage ic.

Not a repair for your average do it yourselfer.

Jun 30, 2010 | Home Theater Systems

1 Answer

Protect Unplug


I know that almost all new equipment since 99 or so on up has these. They are too sensitive. This is a system program that will put stereo in protect mode when turned up loud or have a lot of bass on to stop from blowing audio outputs.

Aug 07, 2009 | Sony DAV-DX250 System

1 Answer

Samsung ht-wx70 shutting off for protection


The word PROTECTION means that the cooling fan is defective. it needs to be replaced.
Call 1-800-7267864 (SAMSUNG) and they can repair it for you.

Hope this helps!

Jun 30, 2009 | Samsung HT-WX70 Theater System

1 Answer

Protection flashing and the system turns off


You need to take it in for service. I work at an authorized JVC service center and can tell you that you now have a serious problem. It could be the amplifier or the power supply causing it. The protect circuit will activate for several different reasons and only a properly trained technician with the right tools can determain just what the problem is. I don't berlieve that trying to play the disc you mentioned would have any relation to the cause of the problem, it is most likely just a coincidence that it happened at the same time.

Before you take it in, try this.

Unplug all the speakers and then see if it will turn on and stay on. If it does stay on you may have a bad speaker. Turn it back off again and then connect one speaker at a time and turn it back on. If it shuts off in protect when you connect the first speaker, unplug that speaker and try another. If it still shuts off and goes to protect with a different speaker you have an amplifier problem. If it stays on with another speaker it may be the previous speaker is causing the problem, so take it in to be checked. Whenever you connect a speaker and then the unit goes to protect, it may be the speaker that was just connected that is causing the problem. This is not 100% all the time, but it is a pretty good indicator that is worth trying before spending money on a repair.

If the unit goes to protect even with no speakers connected you have an internal power supply or amplifier problem for sure.

Le tme know if you need any more help.

Dave

Aug 06, 2008 | JVC TH-A25 System

1 Answer

Unplug/protect


The audio amplifiers ICs of your device are damaged.You gotta take it to service center.Good luck.

May 25, 2008 | Sony Dream System DAVDX155 Theater System

1 Answer

Protect unplug


Dear ecuabling,
Sony Home Theater system gives such message at that time when it gets problem in Amplifier section. You should contact nearest Sony repair center for better solution.

Jan 11, 2008 | Sony DAV-DX250 System

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