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Why denon avr-1712 blinking red after shut off

Outputs are good,caps-good,resisters-good.did a micro reset problem still there.talked to denon,they said haven't seen this problem b.s .i have seen other models with same problem!!i will post when i fix it....

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  • Contributor
  • 54 Answers

Does it attempt to power up or just sit there blinking at you.?

Rob

Posted on Jun 02, 2014

6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 54 Answers

SOURCE: Denon AVR-1601

This is a very common problem with denon receivers of the 2001-2-3 vintage. On almost every one, there are 4 little "surge" resistors in the power supply. These werent quite robust enough from the factory and one day would just burn open for no reason. Well, actually there is a reason, the "surge" that happens every time you power the unit up eventually weakens the resistors and then they pop. You need to take this to a denon service shop as I GUARANTEE they have seen this before. They need to check resistors in the picture, locarde above the **** rectangular connector. Resistors numbers R141, 142, 148, 149: 75f69d7.jpg These resistors when measured, should be less than 10 ohms each. If they are more, then they are blown. If they are blown, then have the shop check the channels for blown output transistors. If the outputs are OK, then these resistors should be replaced with 1 ohm 1/2 watt metal -film flameproof resistors. You might need to be prepared for a large bill, because the entire unit must come apart to replace the resistors, however, just checking them takes only about 10 minutes... Good luck and don't try this at home. Rob

Posted on Apr 08, 2008

tech48
  • 624 Answers

SOURCE: 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.

Posted on Jun 22, 2008

SOURCE: DENON AVR-1404 switch on problem

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

Posted on Aug 22, 2008

  • 92 Answers

SOURCE: AVR-589 Denon Receiver Keeps Shutting Off

even if the wires are not touching they can still arch. make sure there is no bare wire showing ie. cannot see any unshielde speaker wires. id unplug then replug back in

Posted on May 18, 2009

localwonder
  • 6784 Answers

SOURCE: shuts off then red light indicator flashes, disconnected all speakers but still wont work

Hi, this is a power board issue. remove the cover and make sure that this unit doesn't have blow fuse. if the fuse is fine, you will then need to replace the integrated power/ main board.

Posted on May 21, 2009

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1 Answer

Denon AVR1603 RESET


Starzy, to reset on a Denon AVR-1603
  • power off the unit using the front panel Pwr switch
  • press and hold SPEAKER A and B buttons;
  • keep pressing on the speaker buttons, switch on the AVR
  • when the display is blinking release buttons Check the attached links,instruction and guides, Good luck
    "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
http://www.avsforum.com/forum/90-receivers-amps-processors/1386123-help-denon-avr-1603-shuts-down.html
Denon AVR 1603 Operating Instructions Manual Last Function Memory...

Jul 24, 2016 | Denon Audio Players & Recorders

1 Answer

When I power my Denon AVR-3311ci on, it only comes on for a second then shuts off completely. No blinking red light and nothing on the display. I can hear a relay on the power board clicking. Any ideas?...


Greetings
have you checked the speaker cables ?
please do
Usually the Denon system has a problem with power regulators
if u have any knowledge in electronics i can guide u to repair it
if not .. u have to send it to service.

check for fuses if blown
power regulators mostly are damaged
and or power output transistor damaged
Good luck From Audio-adviser.com
25440118-2h0lmi5p2mouqodobvcfrsic-5-0.jpg

Feb 17, 2015 | Denon AVR-3313CI

1 Answer

Denon AVR-1513


disconnect speakers then try again if still shutting down you will have bad outputs.

Aug 26, 2014 | Denon Audio Players & Recorders

1 Answer

Denon avr-1612 keeps shutting off and on


You have an output problem, check outputs for short

Apr 07, 2014 | Denon AVR-1612 5.1 Channels Receiver

1 Answer

Only red light is blinking on my denon avr 1508


It sounds like you overloaded the Denon avr with too much resistence from the speakers. Please check the total resistence of the speakers before you connect them all. Also check that the speakers or their wires are not shorted!

Jan 20, 2013 | Denon Audio Players & Recorders

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

Denon AVR 2105 power shuts off, tried resetting the micro processor and no luck. Please help...


The receiver has an internal problem like bad power supply or burnt channel. You need to bring it to a local repair shop or mail it here.

Feb 06, 2011 | Denon AVR-2105 Receiver

1 Answer

When I turn the unit on it cycles through its start up but turns right off. little red light blinking. I checked the fuses did the reset on the micro processor with no luck. I also detect a slight burning...


check your speakers for loose or frayed wires touching across causing ashort. if not , remove 1 speaker at a time unit the the unit stops shutting off. replace that speaker and you should be good to go!

Apr 20, 2010 | Denon AVR-1403 Receiver

1 Answer

I have had my Denon AVR-1907 for about 20 months. About two months ago, it started shutting down and the On/Off button blinks red. Almost all the time it would clear by itself for no reason and then work...


You will have to check with a volt/ohm meter the + and - 15volt regulator ics in the power supply if they are off by more then 3 volts it will shut down as soon as it is turned on,and you still will have a flashing red light. also you may want to check the output transistors for shorts if your regulator ics are good.

Sep 29, 2009 | Denon AVR-1907 Receiver

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

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