noise from fan in tv

vibeline
vibeline Posts: 4
edited January 2007 in Troubleshooting
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
Post edited by vibeline on
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Comments

  • Refefer
    Refefer Posts: 1,280
    edited January 2007
    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!
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  • vibeline
    vibeline Posts: 4
    edited January 2007
    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
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  • janmike
    janmike Posts: 6,146
    edited January 2007
    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°
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  • vibeline
    vibeline Posts: 4
    edited January 2007
    I unpluged everything from the tv except the power cord. it's still buzzin
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  • danger boy
    danger boy Posts: 15,722
    edited January 2007
    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?
    PolkFest 2012, who's going>?
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  • danger boy
    danger boy Posts: 15,722
    edited January 2007
    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>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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  • vibeline
    vibeline Posts: 4
    edited January 2007
    I will keep on trying so if you guys have any other ideas send them my way.
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