Question about Denon PMA-100M Amplifier

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My aplifier Denon UDRA F-10 says "protect"

Instead of radio, auxilar, cd, tape... says "protect" what to do? I press function but it does nothing.
Thank you for help me

Posted by on

  • aldadam Feb 08, 2009

    I have another problem. How do you save the radio presets on the udra-f10? Thanks, Jeroen (Netherlands)

  • Shahid Electronics
    Shahid Electronics May 11, 2010

    Protect means Amplifier is in protection mode due to some problem in amp out section and requires qualified tech to fix it.



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  • 16 Answers

Blingking Light or Protect usually means that there is DC appearing in output stage and is protecting Connected Speakers.
It can be faulty Output Stage (Bad ICs/Transistors/Resistors/Capacitors) or Faulty Power Supply.

Working on These types of Problem is not user friendly at all.

Advising to take local Authorized Shop.

Posted on Jan 31, 2009

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Posted on Jan 02, 2017

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