Question about Denon AVR-1200 Receiver

Open Question

Receiver in Protection Mode

My AVR 1200 went into Protection mode after being hit by a 440 V surge. I have been told that all ICs in the Power circuit have been blown off and resistance values have increased. I have seen that several capacitors have been blown off. It's possible that other sections have been damaged too. But I was told that can only be ascertained after setting the power section right. My mechanic's opinion was that even if things are set right the perfomance can't be guaranteed.

What would be the experts' take on this - would it make sense attempt repairing the set.

Posted by on

2 Suggested Answers

  • 3130 Answers

SOURCE: Denon AVR-810 going into PROTECTION mode

It sounds like there is a problem with the differential circuit. The bias I am not sure about, as every unit is different. You should get the service manual to be sure or call Denon and see if they can give you an idea. Good Luck

Posted on Jun 05, 2007

  • 3 Answers

SOURCE: amp comes on and goes

Do you still have the AVR1500? I have one with a bad tuner--and would be interested in purchasing your for parts. Let me know if you still have it and if you'd be willing to sell it.

Posted on Apr 29, 2009

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


1 Points

Related Questions:

1 Answer

Protection mode

Try tapping it on the top or sides with your hand or fist, I was told this buy a body of mine, That has been a (Electronic) Tech for over 20 years now, Tap it fairly hard,It has work for me with recievers And amps to get them out of the (Protection mode.What causes them to go into (Protect) Is a short in a speaker lead or the speaker wire come disconected some how,Or there could of been a power surge.

Oct 04, 2012 | Yamaha RX-V1400 Receiver

1 Answer

Red power light blinking on my denon avr 1907, tried reset procedure, no speakers hooked up now and it still goes from green light to blinking red light and shuts off...Any clues?

This is a protection mode. The receiver protection circuit detects an internal problem like missing power supply voltage or blown channel and shuts down the receiver. You need to bring the unit to a repair facility.

Sep 26, 2011 | Denon AVR-1907 Receiver

1 Answer

My Harmon Kardon AVR 500 sound doesn't work, I disconnected speakers, re connected & reset protection. Nos ound not even on test mode

Hi it is seem there is no output from your device. Please check the circuit components and wires for malfunction in your Kardon then. Regards

Feb 09, 2011 | Harman Kardon AVR 500 Receiver

1 Answer

My denon avr1200 receiver once it is turned on goes into Protection mode. How do you reset or make work?

The reciever will go into protection mode when there is a short in the speaker wires or the amplifier was overloaded. What I would do first is verify that none of the speaker wire connections are loose at the back of the reciever or at each speaker. And verify that none of the wires are making contact with each other. Then label each speaker wire as you remove them from the reciever so you can re-install them correctly. After you have disconnected the speaker wires try unplugging the reciever for 10 to 15 minutes. Most recievers have a self-resetting overload protection switch and this should reset it back to normal. Now try plugging the reciever back in and turn it on without the speaker wires connected. It should be out of protection mode now. If it is still in protection mode verify that there is not a reset switch somewhere on the back of the reciever. If it is not in protection mode now then proceed to connect one speaker set at a time and turn on the reciever to see if it goes into protection mode. If it goes into that mode after connecting a speaker then that speaker is the cause of the problem. If it does not go into the mode after all speakers are connected then try turning the volume up. If it goes into protection mode then there could be an internal short on the amplifier or a incorrect OHM rated speakers connected to reciever. Verify that the speakers are rated the correct OHMS.

Feb 22, 2010 | Denon AVR-1200 Receiver

1 Answer

Cripes, been working great for several years, (My Harman Kardon AVR 335) but my coffee maker shorted out and trip the circuit breaker in my house that must also be in line with living room. Of course I...

Sounds like it's in protection mode, receivers do this so avoid circuit damage. It's usually only when speaker connections are shorted, but here it appears it has a surge protection of some kind. A local hifi shop will usually be able to reset such problems.

Jan 05, 2010 | Harman Kardon AVR 335 Receiver

1 Answer

DENON AVR-1404 switch on problem

Maybe the audio amplifier IC´s are damaged that´s why go on the protection mode

Jul 21, 2008 | Yamaha RX-V461 AV Receiver

2 Answers

Unit keeps going into protection as soon as its powered up.

Replace the audio amplifiers ICs they are damaged thats why the amplifier protect himself of a greater damage.

Apr 24, 2008 | Harman Kardon AVR 130 Receiver

1 Answer

Protector flashing

Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

Oct 05, 2007 | Sony STR-GA7ES

1 Answer

Protection mode after about 3 seconds

The protection is most likely being triggered by an internal fault. Typically the power amp section. The receiver will need professional service.

Sep 18, 2007 | Denon AVR-681 Receiver

1 Answer

Denon AVR-810 going into PROTECTION mode

It sounds like there is a problem with the differential circuit. The bias I am not sure about, as every unit is different. You should get the service manual to be sure or call Denon and see if they can give you an idea. Good Luck

Jun 05, 2007 | Denon AVR-2106 Receiver

Not finding what you are looking for?
Audio & Video Receivers Logo

Related Topics:

78 people viewed this question

Ask a Question

Usually answered in minutes!

Top Denon Audio & Video Receivers Experts


Level 2 Expert

49 Answers


Level 1 Expert

4 Answers

Tech Leprechaun
Tech Leprechaun

Level 2 Expert

59 Answers

Are you a Denon Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides