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My Denon AVR 1906 receiver keeps shutting off & shorts out.

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  • Jonzer Oct 17, 2008

    My Denon AVR 1906 receiver keeps shutting off...shorts out.

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5 Suggested Answers

djnick989
  • 1067 Answers

SOURCE: Denon AVR-1905 remote

www.remotewarehouse.com grenteeed fit match

Posted on Jan 26, 2008


hawkwatcher
  • 67 Answers

SOURCE: DENON AVR 1906

Units dc protect mode is probably activating due to Blown channel (shorted output transistors) I work for a Denon Authorized repair Center in Michigan If shipping to Michigan is economical let me know kstahl65@att.net

Posted on Feb 15, 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

  • 4 Answers

SOURCE: Denon AVR-1803 keeps shutting down

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

Posted on Mar 17, 2009

  • 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

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I just found this out after having this problem with my AVR-1906.

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I have ordered the replacement transistors from Farnell (UK) at a miserly cost of around £2-£3 each.

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An alternative is, if you don't use all your channels, take the transistors from a known working but not needed channel and swap them over with the duff ones.

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DENON AVR 1906


Units dc protect mode is probably activating due to Blown channel (shorted output transistors) I work for a Denon Authorized repair Center in Michigan If shipping to Michigan is economical let me know kstahl65@att.net

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