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Denon CD Receiver display reads "Protect"

When the product is switched on the word "Protect" flashes on and off on the display and neither CD player nor receiver will work

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  • POTH Jul 29, 2008

    well i was listening to my music one day and then the next day the receiver was flashing PROTECT and i didnt know wat to do so thats why i am writing this. i would apreciate a little help please.



    thanks

  • gary atoz Aug 02, 2008

    I turned power then it says status then protect starts flashing then turns off.

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  • 1,550 Answers

Always be the audio amplifier Ic damaged and need to be replaced

Posted on Feb 11, 2009

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2 Answers

The display just reads "protect"


Protect is bad. It means the amplifier thinks it is overloaded. Check the speaker wires to make sure there are no loose connections or shorts.

Mar 01, 2011 | Sharp CD-BA2600 CD Shelf System

1 Answer

SONY HOME THEATRE SYSTEM Model STR K 670 serial # 8877041 The system turned on and blinks protect. I cleanes all the speaker connections and still the same. Please advise Daghild



http://esupport.sony.com/US/perl/model-home.pl?mdl=STRK670P&LOC=3



http://www.kb.sony.com/selfservice/microsites/search.do?cmd=displayKC&externalId=C215444&fes=true&mdl=STRK670P


From the link...


PROTECT, PROTECTOR or the letter P is flashing in the display of the Audio/Video (A/V) receiver. Solution
sp.gif sp.gif If PROTECT , PROTECTOR or a P is flashing in the display of the A/V receiver, there may be an incorrect connection or an improper setting. Try following these steps to resolve this issue:
IMPORTANT: If model-specific information is needed to complete any of these steps, refer to the instructions supplied with the product. Manuals are available online through the Manuals/Specs/Warranty link on this page.
NOTE: Because each of these steps represents a possible solution to this issue, check the A/V receiver status after completing each step.

  1. Check the speakers and speaker wires for proper connections.
  2. Reduce the volume level. IMPORTANT: If the A/V receiver is used at maximum volume level, it may enter the PROTECT mode. Maximum volume listening will cause the A/V receiver to run very hot and may drain the output capacitors.
  3. If applicable to your model, disable the surround sound option if both the A and B speakers are being used simultaneously.
  4. Ensure the top of the A/V receiver has proper ventilation to keep it from overheating.
  5. If the message only occurs when using a DVD player, the sampling frequency may be set too high. IMPORTANT: Some A/V receivers provide compatibility with the higher sampling frequencies through alternate connections. Consult the owners manual for specific information.
  6. Unplug the AC power cord for approximately 1 to 2 hours to reset the output transformers.
If the issue is still unresolved, service may be required.


My $.02...


Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

Jan 28, 2011 | Sony Audio Shelf Systems

1 Answer

Can i play music through my iphone on my denon m30


http://www.retrevo.com/s/Apple-iPhone-16GB-Cell-Phones-review-manual/id/23123ag501/t/1-2/

Anything that has a headphone output can be adapted to feed an RCA cable pair for standard stereo to any audio device with a standard RCA input. Get a cable like the one described here:


http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10218&cs_id=1021804&p_id=665&seq=1&format=2


and connect it into any available analog input EXCEPT "Phono". Turn the MP3 player volume up.

Jan 26, 2011 | Denon D-M30 CD Shelf System

1 Answer

Cd ejection tray


Hi,

From Standby press function, whilst holding function press power (both on the main unit).
The display will show demo mode, this has now disabled the mode.
Regards Graham

Jul 25, 2010 | Denon D-M33 Shelf System

1 Answer

How to get service manual - Denon M10 (UDCM-M10) - CD Player


I woul try to download it from a reliable site and print or see if Denon sells it

Feb 09, 2010 | Denon D-M10 CD Shelf System

1 Answer

Protect!!!


Hi,

Have you unplugged it from wall since ?
and, do you know if maybe the speakers are blown?
Bad speakers will make it stay in "protect"
Try other speakers after the unplug-plug back in routine.
Try the Denon website for a manual

Jan 11, 2009 | Denon D-M50S CD Shelf System

1 Answer

Denon df101 cd player problem


can't read now? with any cd's? if that happens try to adjust the trimpot/variable resistor beside the optical lens(its still part of optical lens) I just dont know if it turns clockwise or counterclockwise, well turn it on the other side then turn again to the other side. little by little. then if it still not working, you need to change your optical lens though.

you can do this if you are a pro..
note:
stay away at the power supply, never touch any part.

hope I helped you..^^

Feb 02, 2008 | Denon D-F101 CD Shelf System

1 Answer

Denon UDM3 SHELF SYSTEM


Hi MadLad,

There are several things to consider re this fault.....

Normally on small systems there is a selector switch to allow you to select what you need to listen to...for example if you want to play a CD then you select the CD mode, insert the CD push play and away it goes....

In your case you need to select Radio, or maybe select AM or maybe select FM, one of these should be accessed from a digital read out menu where you select your requirements.

Please have a good look at the operating manual to see if you can work out how to select the required listening mode, and you will be sweet...

Cheers From YUBEUT

Dec 14, 2007 | Denon DM-33 Shelf System

1 Answer

Its under protect mode


Sign up with Denon and you can download you manual: Here's the link. http://usa.denon.com/ArchivedMicroSystems.asp?archivedModelSearch=true&clearCurrent=true&archivedCategory=Micro&archivedModel=D-M50S&imageField.x=16&imageField.y=11

Sep 11, 2007 | Denon D-M50S CD Shelf System

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