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  1. #1

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    Default noise from fan in tv

    this is my first post I hope I am in the right place.

    My front speakers are driven by a denon poa2800 amp the center and rears ar driven by my yamaha 5890 receiver. when I turn the tv on I get a quiet buzz out of my front speakers only. It does not increase or decrease with volume adjustment. When I turn the tv off the buzz stops I think it is from the cooling fan in the tv. I ran an extension cord from the basement to plug the tv into the buzz is still there when I turn the tv on.
    (50' away different circuit)

    The denon amp pics up the noise the yamaha 5890 does not?????

    Is there some gadget I can plug the tv into to stop the buzz from back feeding into the wall outlet?

    My rig
    50" LCD sony grand wega
    yamaha 5890 reciever (drives center and rears)
    nad 521bee cd player
    Denon poa 2800 (drives front speakers)
    paradigm monitor11 fronts
    paradigm cc370 center
    paradigm adp370 rears
    seismic 12 sub
    monster 2100 power bar

    Thanks for the help

  2. #2

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    Default

    Interesting, if annoying, calamity. Try switching your amps briefly to see what the cause might be... I have a feeling it might be a cabling issue.

    Can you switch it so that the yammy is powering your front's and the denon the back? What happens when you do?

    Also, is the wires from your speakers being run along side the power cable for the tv?

    Oh, and welcome to the forum! Hope it all works out!
    Lovin that music year after year.

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  3. #3

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    Default refefer.......... amp swap

    OK, I tried it, I used the denon to power the rears and yes I got the buzzing noise from the rears (only when the tv is on). Some how the denon amp is picking up noise from the fan in the tv.
    As far as cables, I am using monster m1000i. I swaped the ones from the CD player with the pair that go to the amp no change. I also strung the tv power wire up in the air so it would be no where near the speaker wires same ****.

    Keep throwing out suggestions.

    The buzz drives me nuts!!!!!!!!!!!!1

  4. #4

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    If you have cable TV unplug the coax coming in to the TV or the cable box. See if the buzz goes away. As well, is the cable feed properly grounded. You can also put a filter (couple of $) on the coax. Try to determine if the cable is the problem.
    Michael ;)
    In the beginning, all knowledge was new!

    NORTH of 60

  5. #5

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    Default Mike

    I unpluged everything from the tv except the power cord. it's still buzzin

  6. #6

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    try one of these.. it might help with the buzz. it has helped others in here before. it's a AC adapter is all. costs about $1.50 or less. Try one on your amp. or your TV. I don't know why a TV fan would interfere with an amp?
    Attached Images  
    Last edited by danger boy; 01-07-2007 at 06:49 PM.

  7. #7

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    try different speaker wires.. they may not be sheiled enough to be that close to your TV. or the sheild may have a break in it........ these are all just suggetions.. but one of them may be the culprit.
    PolkFest 2012, who's going>?
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  8. #8

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    Default thanks guys

    I will keep on trying so if you guys have any other ideas send them my way.

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