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Denon Power AMPLIFIER

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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3 Answers

I have a Denon AVR1603, recently I plugged computer in AUX connections at rear (not loud) and it kept tripping out. Eventually it tripped and now the the on/standby light fashes but nothing else happens....


The LED flash indicates that unit goes into protection. Check the power transistors, the 0.22 ohm or 0.47 resistors in the output of the transistors.


SAM ANDERSON

Sep 29, 2008 | Denon Audio Players & Recorders

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?


hi.
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

microhit

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

1 Answer

DENON UD-M30 CD Player is displaying the word PROTECT and will not function. Any ideas how to fix this problem? Many thanks.


HI:
Usually when a receiver goes into protect mode, there are several reasons, One is there is a bad speaker connected to the unit, this will cause the unit to to into protect mode, try disconnecting all speaker from the unit and turning it on if it does not go into protect then one of the speakers are bad. Another reason is the power output Amplifier IC is shorted inside the unit. Another reasons could be that speaker wires are touching each other and causing a short. Disconnect all unit connecting to the unit and try turning on, if it stays on and no protect then connect them including the speakers one at time until you determine which is causing the error. If it goes into protect with nothing but the unit on then the Output IC is bad and the unit needs servicing.

Mar 10, 2011 | Denon CDR-M30 CD Recorder

1 Answer

I have a Denon AVR-!000 how do I know if it need a Powered Subwoofer or non Powered subwoofer ?


I can't find a manual but the pictures I saw clearly show NO amplifier output for a sub. There's a pre-out for Center and one called, strangely, Mono.

Jan 23, 2011 | Denon Audio Players & Recorders

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.

Dan

Link: http://www.fixya.com/support/r5390728-protector_means

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

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 | Audio Players & Recorders

1 Answer

Denon AVR-1907 blinking red power button


It sounds like you have a bad speaker on the zone 2, or you have the speakers connected improperly.

When you engage the zone 2 a relay clicks and the speakers then become part of the amplifiers circuit.

If the problem was in the amplifier, it would go into protect mode without even having speakers connected to it.

If the speakers all check good, you most likely have the wrong type of speakers, meaning the impeadance is too low, or you have too many speakers connected to it.

On the back of the Denon, you will see right around the speaker output jacks, what ratings the speakers should be. If I remember correctly, it says 6 ohms or more when using only "A" or "B", and it says 12ohms or more for "A" + "B".

If you have two 8 ohm speakers on the same speaker jack you now have a 4 ohm load. That is below the ratings and can cause the amp to shut down (go into protect). Since your amp shuts down right away, I think you have a bad speaker or way too many speakers connected.

I have seen many times when people will connect 2 or 4 speakers to the one of the outputs that are designed for only 1 speakers.

If you are using too many speakers you will need a speaker distribution box. It has a resistor network built into it so the amp never sees a lower impeadance than what it is designed for.
You can connect 4, 6 or 8 speakers to one set of outputs designed for 2 speakers. You do loose a lot of power to the speakers, but it is better than blowing up your amplifier.

If I can be of any further help, let me know.

Jun 22, 2008 | Denon AVR-1907 Receiver

1 Answer

Wiring speakers to denon avr 3802


Those are not compatible speakers for this unit. The Denon receiver does not have any speaker outputs for that type of speaker.

The Denon speaker outputs are full range outputs. Your speakers are not designed for that, they need an amplifier that has seperate outputs for the highs and lows.

By using these speakers you will probably damage them and they will not sound very good as well. The tweeters will end up fried and it is also likely that if one of the speakers goes bad, it will blow one of the channels in the amplifier.

If you really want to do it anyways, and don't say I didn't warn you, you could connect them using the "A" and "B" speaker outputs. Connect the woofers on one set, lets say "A", and the tweeters on the other, lets say "B". Right channel "A" would be the woofer and right channel "B" would be the tweeter for one speaker.

When listening to the unit you would need to engage both the "A" and "B" speaker to hear anything from both speakers, there are buttons on the display for the speakers marked "A" and "B" and in the display you would see little icons that light up when the speakers are engaged.

I can not stress it to you enough that this is not a good idea to use these speakers with this type of receiver. Do this at your own risk and be prepared to pay about $150 to $200 for the repair bill after the amp blows a channel.


Mar 08, 2008 | Denon AVR-3802 Receiver

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