Question about Denon DRA-685 Receiver

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Protection error When I power up the unit it goes right into PROTECTION and nothing works. Is this an expensive fix?

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  • djkillar Oct 17, 2007

    Could you please clarify your post marxa? I don't understand what you are trying to say... thanks.

  • djkillar Oct 17, 2007

    can you please clarify your comment, I don't understand what you are trying to say... thanks.

  • Helix55 Dec 21, 2007

    I have a similar problem. Usually, the "protection" feature turns off the sound (it happens when I use my TV or my CD player) when it is loud, but not very loud. (It says "protection" on the screen, instead of "input", etc.) However, it has come on without a reason I could see. When I turn off the receiver, turn down the volume, and turn the receiver on again, it continues to work. Some of my music cannot be played at a normal sound level, and I have been frustrated at the manual's suggestions. It says to give enough space around the receiver, which I have. What else can I do to keep the sound from being shut off when, for instance, a louder commercial comes on TV, or when the Beethoven Symphony comes to a sound peak?
    Helix

  • Anonymous Jan 04, 2009

    "Protection" flashes on the screen and nothing will function. Troubleshoot section of the manual says that it occurs when speaker wires are shorted or the unit is overheated. However, the unit is cool and disconnected from all devices including speakers. "Protection" mode will not clear. Help!

  • JDJ333 Mar 28, 2009

    I have the same problem except that mine will now not work at all.  The Projection message comes on a few seconds after turning on power.  I have disconnected all speakers and sources but nothing helps


    James

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Your loudspeakers tweeters have shortcut *try them separetly)

 

Posted on Oct 16, 2007

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Red light flashes - will not work - could it be dust in the amp?


hi,
its not because of dust. AZUR 640A offers loudspeaker protection if the output of the amplifier goes to a high constant voltage (DC) because of some internal fault. This is a rare fault although detecting it could just save those expensive loudspeakers.
Due to the necessary sensitivity of the DC protection circuit, hard clipping of the amplifier may cause DC protection to be triggered. If this fault occurs switch the unit off, power up again and check
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My home theater system is showing push power protector on the read out and nothing is happening.


Push power protect is an error message that shows unit got some problem in output amplifier section and protection circuit is activated to avoid further damage.
Local tv repair shop will help you to fix it as unit will take apart and soldering work is also involved to replace bad amplifier output chips.

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It comes on and goes back off, and is asking me to push power pro


HiFi system goes to standby because protection circuit detects error in amplifier section, you need to take unit to qualified tech for fix.

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Standby light keeps blinking. tv wont turn on


If the TV goes off completely, then is usually a faulty power board.

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |
On Rear Projection : check lamp, lamp ballast, power board, and convergence.

May 07, 2009 | Televison & Video

1 Answer

My Lg Monitor wont show screen (Power Button Flashing)


The monitor is probably on protection.

To start unplug monitor from power and from computer and test computer with different monitor to find out if it is monitor or computer fault.

If it is computer fault and no video signal , then test:

  • Video cable.
  • Video adapter on PC (sometimes integrated on motherboard)
  • Motherboard.

If it is monitor fault , then the monitor is on protection.

When on protection you keep having a flashing led on front of the monitor , and monitor turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the Monitor goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or a broken contact, identified an internal fault and kicked in , starting the flashing light.


If you are in situation one, then the monitor will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, faulty inverter board, faulty input board, or a fault on LCD Digital Controller board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.

Try moving the video cable, and if the cable is not built in, then also try a replacement cable.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

May 04, 2009 | LG Flatron L1750S 17" LCD Monitor

1 Answer

Windows protection error


boot it from your recovery disc or a proper bootable OS disk, and try repair mode. if this doesnt work, you will need to reinstall your OS

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1 Answer

Protect error


Hi,

If your amplifier goes into the protection, there's really something wrong. There are different kind of protections but usually that circuit does see a DC voltage on your speakeroutput.
So it's a protection for your speakers.

regards,
Gerard

Jan 31, 2009 | Audio Players & Recorders

1 Answer

Peavey SP5


depends who assembled the speakers as to wheather or not there is any fuse proetection installed.
The drivers are probably gone from the highs because of overloading power surge on the same circuit as the cash register,
or
the crossover is failed.

Cheap fix is replace crossover
expensive fix replace cones of speaker

Best long term protection is to split up the power loading on the stage and surge/spike guard power boards for staging equipment & have resettable fuses installed at the crossobvers or the respective speaker connections.

1.FUSES ARE PROTECTION<
2.THEY BLOW FOR A REASON<
3.PROTECTING THE SPEAKERS<

Oct 25, 2008 | Peavey CH1 Speaker

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 | Audio Players & Recorders

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