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DENON AVR-1500 "PROTECT" appears on display

I have a DENON AVR-1500. It worked great until I got a static relayed shock when pushed the power switch. Now after the initialization process, "PROTECT" comes up on the display. The manual states that the speakers are short circuited or the ventilation holes are blocked. I checked both and this is not the cause. Any Ideas?

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  • jim_mary2002 Jan 30, 2008

    No luck, as I mentioned in my original message it is not the speaker wires or venilation. I think I fried something with the static when I touched the power switch. I had the receiver over 12 years - so I don't want to put a lot of money into it. I will see what I can pick up on ebay for ~$200.

    Thanks,
    Jim

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Hi there!

all i can do from your description, is to give you some of my views. so, don't vote me anything, except "faxya".

as you described, the speakers are ok, and ventilation holes have no problem, then, the problem lies with the Denon itself. the static may have hurted the "protection logic". do you know how to change its logic IC or to ru-burn the MCU(micro computer unit) and you do not have the unconteminated logic program anyway? i guess not. Not even the agent's servicemen can. It has been a long time servicemen are spoiled or hands tied up by the VLSI(very large size integration), so they just find out which PCB is in question and change the whole PCB, just like car service centers do. very costly to our wallet and to the environment!

pc-cook

Posted on Jan 28, 2008

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Protect?

Posted on Jan 28, 2008

  • 9 more comments 
  • dewan nafees ahmed Jan 28, 2008

    two cables of a speaker were touching each other.
    this may be the problem



    else
    the radio output (stk428-610 & stk428-640) are bad, for this in the panel you can see protect change....
    the STK outputs will be $65.00 each

  • dewan nafees ahmed Jan 28, 2008

    good luck..

  • dewan nafees ahmed Jan 28, 2008

    It is either an issue with having a surge protector connection. u plug in the receiver into wall without protector.. see if any change..

  • dewan nafees ahmed Jan 28, 2008

    ok good luck..

  • dewan nafees ahmed Jan 28, 2008

    but remember The first thing I’d check is all the speaker wire connections. If you have bare wire connections to the terminals, a single stray strand touching the other speaker terminal can activate the receiver’s protection mode. This is true for both ends, the receiver and the speaker. Also, on the receiver end, if a stray strand from the positive terminal touches the chassis, that could also trigger the protect mode.

  • dewan nafees ahmed Jan 28, 2008

    even if any of these things dosent work for you.. then replace all of ur speaker wire and move it to a more ventilated area and things have to be OK for sure..

    else means calling a tech will be ur last option..



    thank you.. good luck

  • dewan nafees ahmed Jan 30, 2008

    what happened?

  • dewan nafees ahmed Jan 31, 2008

    on the receiver end, if a stray strand from the positive terminal touches the chassis, that could also trigger the protect mode.



    also 12 years. huh.. enough.. its very old one..





    ITS BEST THAT YOU CAN OPT FOR A NEW ONE WITH MANY NEW FEATURES.. SONY IS GOOD..

    but do read many ratings and reviews before you go and buy it.. a one hour survey and home work made by you in bnuying it will fetch you a very good product..

  • dewan nafees ahmed Feb 05, 2008

    did solution work?

  • dewan nafees ahmed Feb 07, 2008

    what happened?

  • dewan nafees ahmed Feb 08, 2008

    thread closed or not?

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