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How do I initialize the microprocessor(reset) the Denon AVR-688. Denon site says the method is in the owner's manual, but it isn't. I am getting blinking red stand-by light after about 5 seconds after power on. Receiver previously worked fine for about 4 months.

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  • jetsya May 09, 2010

    Thanx for your prompt reply, the reset seemed to take place but the unit still goes into blinking stanby mode after displaying "AV Surround", then "Receiver" in the display at power on. Would you know if there is some way to bypass the power circuit protection to see if this is the problem? thanx for any help, I truly appreciate your effort.

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Hi,
Reset/ Initialize microprocessor procedure is as follows:
Turn Off unit, that its already.
Press POWER button while simultaneously pressing Speaker-A and Speaker B buttons.
Once the display start flashing, release both buttons.
That will reset/ initialize microprocessor in your Denon AVR-688 receiver.
These info are also available on user manual page-42
Hope this info will help you.
Let me know if you have additional question.
Thanks.

Posted on May 09, 2010

  • Shahid Electronics
    Shahid Electronics May 09, 2010

    Thanx for your prompt reply, the reset seemed to take place but the unit
    still goes into blinking stanby mode after displaying "AV Surround",
    then "Receiver" in the display at power on. Would you know if there is
    some way to bypass the power circuit protection to see if this is the
    problem? thanx for any help, I truly appreciate your effort.
    ===================================================================

    If receiver got problem in amplifier output stage then protection will be activated. It seems hardware problem in your receiver.
    Qualified tech is needed to fix it as bypassing protection is not safe way.




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Resetting the Microprocessor

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14 INITIALIZATION OF THE MICROPROCESSOR
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