Question about Sony MHC-RXD5 Shelf System

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Protect power keeps coming on - rdx5 MHC

I try play a dvd, any increase in volume, protect power message comes on - where do I start to look. I have spent the afternoon checking wires and come up with no solution, please and thanks

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  • Tanis Feb 23, 2009

    help please if you can

    thanking you very much

  • Tanis Feb 24, 2009

    thanks, I am going to start this project right now, thanks again and I will reply here soon. (finally got my password figured out, zeros or lettters - hehe, so confusing


  • Tanis Feb 25, 2009

    Hello all, thankyou all so much!! I really appreciate the "helping hand" your team has given me, I had no idea where to begin looking for the problem. I checked and cleaned all the wires (took the sticky duct tape off), checked connections, changed plugins. I found the white and orange plugs were in the wrong places on the back of the tv due to some moving of furniture around so I could get my floors redone.

    Once I could hear sound out of the 'extra" set of speakers I knew I was on the right track.

    Again, thankyou very much and I am saving this site for future, hope you stay on the airwaves :)


    teajay1 (Tanis)



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Protect usually means a speaker wire problem. remove all connections and redo them making nice tight twists in the connections the spliced end should be no more than 1/4 inch long. make sure to do this for all speakers as well as on the back of the unit.

Posted on Feb 23, 2009

  • 2 more comments 
  • Chuck Feb 23, 2009

    it could be one little strand of copper so just dont do a quick look see. Just remove all the wires on speakers as well as on the back of the unit. Then post comment to see if that helped or not. then i can help you further.

  • Chuck Feb 23, 2009

    another diagnosis is to make sure if unit is not defective by removing all speaker wires from back of unit. yes i did say all speaker wires. Now try to turn volume up and see if it is internal problem. If you get a protect this way this means the unit is in need of service or replacing

  • Chuck Feb 23, 2009

    did you try my last diagnosis by removing all wires from back of unit? and then see if it still happens? if i helped fix it how bout a fix ya....thanks and good luck any other questions try it is easier

  • Chuck Feb 24, 2009

    so what is the verdict? if it works ok when all speaker wires disconnected and doesnt go to protect (turning volume up) you can then attach one speaker at a time and see which one gives you the protect mode. there could be a malfunction in one speaker. or like i said earlier that if it still goes to protect with all wires off then it is internal and something more major is wrong.



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Welcome to FixYa
Do Following...
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