Question about Denon AVR-2106 Receiver

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Denon AVR-810 going into PROTECTION mode

Hello: I have a Denon AVR-810 that was damaged about a week ago. I repaired the unit by replacing the fuses, resistors in the main amp section and a voltage regulator for the display section. I also replaced the main output power transistors. Now when I turn on the receiver everything is OK and I can listen to music at different volume levels through my headphones (no speaker connected). When I connect the main speakers the unit goes into PROTECTION mode when I turn up the volume. I isolated this problem to the main outputs only and it only comes on when speakers are connected. I checked the bias and it reads about 0.024 Volts (24mV). Is this bias setting correct? Why does this problem come out only when speaker loads are connected?

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  • Anonymous Jan 04, 2008

    I bought the Denon AVR-810 on 1992. Two months ago, it shown "Protection" on the screen when switch on. No any sound output, what's wrong?

  • stabes710 Jul 06, 2008

    I just moved and now that I am trying to reconnect my speakers to my
    Denon AVR-810 receiver, which was working fine before the move, in my
    new apartment the unit repeatedly goes into "Protection!!" mode
    immediately the moment the volume is turned up - somehting which almost
    never happened previously.

    I am using monster cable speaker wire and just added Radio Shack's Gold
    Series Deluxe Pin connectors (model # 279-309) to connect the speaker
    wire to the speakers (since one of the them was being finicky about
    working continuously), but nothing seems to be helping. This is
    incredibly frustrating.

    If anyone has any solutions or insights into how to fix this problem, it would be greatly appreciated.



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It sounds like there is a problem with the differential circuit. The bias I am not sure about, as every unit is different. You should get the service manual to be sure or call Denon and see if they can give you an idea. Good Luck

Posted on Jun 05, 2007


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