Question about Denon DHT500SD System

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Denon surround saying protect on display

When i switch my denon surround sound system on it comes up with protect on the display then switches itself back to standby again.

I've tryed unplugging from the mains and re booting but having no joy.

Would be grateful for any advice.


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  • 3 more comments 
  • alabama251 Dec 29, 2007

    my sony surround sound reciever is saying protect on the screen, what does this mean?

  • JezzyB Jan 23, 2008

    Mine is doing exactly the same. Sending it back to retailer.

  • shabbychic Mar 28, 2008

    I have a Sony Surround System and it was working fine. One day I turned it off to go to the store and when I came back and tried to turn it back on, when I clicked the power button I looked down and the word PROTECT came on the screen. It flashes that word and thats all it will do. I paid a lot of money for this and hadn't had it for very long. Can you please tell me what caused it and what I can do to fix it? Thank You.

  • hugosaldana1 Sep 10, 2008

    The fuse went out and when i replaced it the word PROTECT flashes in the screen of my surround sound.

    What can i do?

  • mello1988 Apr 15, 2009

    i have a dolby prologic II and its saying protect on the screeen!! can someone help me???



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  • 14 Answers

Make sure none of your speaker wires are touching, this will cause it to shut down instantly.

Posted on Jun 23, 2009


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