Question about Denon AVR-887

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Denon avr 887 input problem

My receiver has been working great, one day the speakers started to squeal and then silence. I realized the input display was cutting in and out and finally staying out. After numerous variations of cable changes, input modes and aggrevation, I started to here the input circuit clipping. It tries to come on, but nothing. Microprosser has been reset, didnt help. Initial turn on everything works for about 5 min. Any help with this problem would be greatly appreciated. Thank You

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  • sunraisen2 Jul 28, 2008

    I have a Denon AVR-887 and inconsistently the sound will cut out and the speaker will squeal. Usually turning the unit off and then back will help, usually though, this is temporary as it will sqeal again within a few minutes.
    I have reset the miroprocessor and checked and rechecked the wiring, I even sent it to an authorized Denon service center. They said they checked it for 3 weeks and no problems, well when I got it back after a few days the damn sqeal again. Help! Before a take sledge hammer to this thing!


  • borisbeddeno Jan 26, 2009

    I've had mine for a year and a half and no issues.  I just moved and plugged everything in and got pretty much the same issue.  At first I had sound and as I switched through the various modes, one sent my speakers to squealing. I re-plugged everything and I got sound for about 5 minutes before the speakers started to crackle a little bit before total loss of sound.  I have not tried to reset.  I too am in need of help.

  • 3dconge Feb 16, 2009

    I've had my Denon AVR-887 for a couple of years now and only in the past 3 months has the audio sporadically started to cut out and then the speakers squeal. Resetting the unit does help, but as others had stated, this is temporary and sad way to keep the unit working.


    This happens no matter what mode I have it in. I've also reset the microprocessor, checked and rechecked my connections.




    The one thing I changed last night is I added large felt pads to the feet to get more airflow under the unit. I've also raised the shelf I had above the unit. It did had ample clearance before (according to the specifications in the manual, but now I've giving it another 3 inches of breathing room. I will report back here if I find out this helps.


    Seeing others with the same problem is somewhat comforting, but also discouraging. This will be my last Denon purchase.

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Sell it on Ebay and buy a new 2309.

Posted on Jul 29, 2008

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Well it's been 2 weeks since my last post about having the same problems. No static, popping sounds or complete loss with a single tone! WooOoOoOo! Turns out it was airflow only. I have about 6" headroom above the Denon now and I also leave the door open on my media center (glass) whenever I turn on the Denon. Also of note, my media center has an open back.

Posted on Feb 26, 2009

  • 3dconge Mar 16, 2009

    I take that back. My unit is now failing all the time all of a sudden. LEMON. Anyone want to by it for spare parts?

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I have recently experienced front left, center and front right speaker audio output problems. First it was the front left completely off. I would wiggle wires in the back thinking it an input cable issue. I changes my HDMI cables, but this did not apparently change the symptoms. I resorted to gently tapping on the cabinet and noticed audio changes in the front 3 speaker levels including hum from the center speaker with weak sound.

A long story short, I used the speaker levels tone test on manual to check the levels while tapping, slapping then almost pounding on the rear top of the receiver in an attempt to restore my front 3 channel outputs to their full volume levels. I am now convinced that the problem lies in poor connectivity between the power amplified modules and the speaker output terminals. I have seen this in Pioneer receivers and actually resorted to re-soldering the modules to the circuit board after seeing cracked and open solder joints. Without knowledge of the internals of the AVR-887, I am confident this is a similar scenario and I will have to g inside to effect the permanent repair. Not looking forward to disconnecting and reconnecting my A/V plant and the risk I will have to reprogram inputs etc. to get it all working again. Such is the bother for an A/V hub setup in a cabinet.

I wouldn't look for anything more complicated such as the internal processors and A/V switching circuitry. The highest current pathways are the most susceptible to this breakdown for audio output. However, if anyone has found another problem area, please let us know!

Posted on Jul 17, 2010

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