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Hi my denon power amplifier model is POA - 6600A this unit is a mono block i think my speaker outputs has blown and need to find a denon dealer to see if i can get this unit fixed

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Re: Denon Power AMPLIFIER

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Denon avr-1603 switches itself off

Fist of all you have to disconnect all the speakers From AVR. Then switch ON the AVR . If its working normally then any of the speaker or any of the wire to the speaker is faulty. If so connect the speaker back one by one and check on which speaker connection does the AVR shuts off. That speaker or the wire to the speaker is faulty.

If the AVR is not functioning properly even after removing the speakers(shuts off) then there is internal fault with the amplifiers stage. Normally Dry soldering on the amplifier circuit board or any of the output stage is faulty. To rectify the same need professional support.


Apr 27, 2012 | Denon Amplifiers & Preamps

2 Answers

I have a Denon PMA 500V amplifier. all of the output fuses were blown so I replaced them but the unit still doesn't work. Any suggestions?

Did you checked balanced impedance?load speaker impedance vs PA output?or PA might over driven,causing a trouble on the pre-amp to power amp circuits and components damage,
need to recheck related components on the pre-driver up to main output section,

Note: That,blowing of fuses with the same rating is an indication of trouble/shorted in a circuits that driven on it,

Thanks and good luck


Jun 01, 2011 | Denon PMA-2000R 2-Channel Amplifier

1 Answer

When i tun on my DENON avc-2800 amplifier it comes up with 'protection'. How do i fix this

Please see the link below for an explanation of Protect mode. Specific to your model, the output transistors are likely to be shorted. This particular model will shutdown the entire unit if any of the channels have a problem. Without actually seeing the unit and taking some internal measurements, I cannot state for sure the parts required for repair. I would expect a parts cost in the $20-$40 range minimum.



Oct 16, 2010 | Denon POA-8300 3-Channel Amplifier

1 Answer

I have blinking lights on the zone indicator. What does this mean

Do you have speakers connected to that "Zone"?

If not , that's the problem

Jul 22, 2010 | Denon POA-3012CI 12-Channel Amplifier

1 Answer

Hi I have a Denon DAP-2500 with POA 4400 amps, When starting up cold both sides have equal volume, then the left side drops to about 25 to 50% volume. Fiddling with cds, postions and balance sometimes...

HI , just found your post . I also have just picked up a denon DAP-2500 pre and 2 POA 4400 amps with klipsch belles, having same probs with power balance i followed some helpfull advise and deoxidized all rca jacks speaker terminals ect. also i opened the pre amp and cleand it even though it was fairly clean, i used cleaner on all switches and volume controll's . WOW I could hear it nice and clean . Next i will clean the amps. hope this works for you as this is great equpment well worth saving.

May 15, 2010 | Denon Amplifiers & Preamps

1 Answer

I have a Denon UPA-100 amp as part of a 4 piece Denon 100 set,

THe click you would hear is the speaker relay turning on the speakers. If a problem is detected in the amplifier seciton, the relay will not engage. This is often called protect mode and is done to prevent damage to either the speakers or the amp itself. If I remember correctly, these units have discrete transistor outputs and can easily be repaired. These are not the easiest for access however. I would suggest a trip to the repair shop for this one. Expect a parts cost in the $40 range.


Nov 28, 2009 | Denon Amplifiers & Preamps

2 Answers

Denon AV Receiver Model AVR3600 locked at'' Protection '' mode

The power supply is damaged and needs to be serviced. You have done exactly what you should have to test for an outside issue, it's the receiver.

Nov 02, 2009 | Amplifiers & Preamps

1 Answer

My aplifier Denon UDRA F-10 says "protect"

Blingking Light or Protect usually means that there is DC appearing in output stage and is protecting Connected Speakers.
It can be faulty Output Stage (Bad ICs/Transistors/Resistors/Capacitors) or Faulty Power Supply.

Working on These types of Problem is not user friendly at all.

Advising to take local Authorized Shop.

Jan 30, 2009 | Denon PMA-100M Amplifier

1 Answer


1-check sound input source(dvd -tuner-deck)and confirm that amplifier is assigned to sound source-you must check source with it is cabels.
2-check sound output with it is cabels(speakers).
3-if every thing is fine your amp has a problem and needs to go to service center.

Jan 07, 2008 | Amplifiers & Preamps

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