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Denon Avr 2112 how to fix problem shutting down

Posted by David Debbie Adkins on

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  • 246 Answers

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Posted on May 08, 2018

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5 Related Answers

Rob Galayda

  • 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

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Anonymous

  • 624 Answers

SOURCE: I HAVE A DENON AVR

It is going into protect mode. It is a common problem, but is not an easy problem to fix. It will go into protect for 3 main reasons. I work at an authorized Denon service center and have repaired many of these models, so I know what I am telling you is correct.

Reason 1

The receiver has a blown channel. This will require the replacement of many parts. The output transistors, supply resistors, driver transistors, and a capacitor in the driver circuit of the affected channel. It is usually the channel that is located closest to the display board on the main heat sink.

Reason 2

A bad voltage regulator in the power supply. It has several voltage regulators all on their own small heat sinks. It is usually ref # IC101 or ref # IC102.
IC101 is a positive 15 volt regulator and IC102 is a negative 15 volt regulator. More often than not, it is the negative regulator that has gone bad.

Reason 3

The amplifier circuit has a 10 ohm resistor that supplies a high voltage to it and that resistor opens up and must be replaced. It is ref # R184. It is a 10 ohm 1 watt resistor.

Those are the 3 main reasons for your problem. It is not an easy unit to fix, but it is well worth the cost of a repair considering how much these receivers cost to purchase a new one. If you do not have the proper tools to fix this unit, please do yourself a favor and have a service center fix it for you. You will need a multimeter, soldering iron, solder, solder wick, and a # 2 phillips screwdriver. You will also need to isolate whcih of these 3 problems is causing the unit to go into protect. If you have a multimeter I can help you with it, but you still need the soldering equipment and must be skilled at using it.

Let me know if you require more help,

Dave

Posted on Oct 28, 2008

Anonymous

  • 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

Anonymous

  • 1 Answer

SOURCE: Denon RC-980 subsitute remote for Denon AVR-3200

I have a remote left over from my denon ACR3200. the remote is RC-825. It is currently listed on Ebay.

Posted on Jan 10, 2010

budgie140

Ian Summerfield

  • 502 Answers

SOURCE: problem denon avr 1910

most electrical units have a fuse inside,try taking cover off and checking for blown fuse,or,take it to radio repair shop.My Harmon Kardon stopped after 3 years,and the report said the unit that failed was quite a common problem for the modern multi channel amps,quite cheap to fix..All my tips are free

Posted on Jul 04, 2010

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Repair manual for Denon avr 2112


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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
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most electrical units have a fuse inside,try taking cover off and checking for blown fuse,or,take it to radio repair shop.My Harmon Kardon stopped after 3 years,and the report said the unit that failed was quite a common problem for the modern multi channel amps,quite cheap to fix..All my tips are free

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Check your speaker wires on zone 2 and look inthe manual for speaker configurations with zone 2. you may have a speaker conflict. If you still have an issue, post a comment with your speaker setup and I'll help some more. Hope this helps

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(Probably too late to help you, but I'll post so others can see)
I had the same thing happen to my trust AVR-881 two weeks ago. Even re-initializing the processor was no help.
I took it to the repair shop. They replaced three transistors on the board, and charged about $175 for the job.

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2 Answers

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check your speaker wires make sure none are touching each other this will cause a short and shut the reciever down

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Check that your speaker cables are not touching each other at the amp end and also at the speakers as this will cause the amp to shut down.

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1 Answer

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A sound spike should not heat up the unit enough to shut it down. There is another problem. What is the time frame for the shutdown? Is it only after the unit has been running for a while?
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