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Buzzing TV (or something)

Discussion in 'Displays' started by Patrick Larkin, May 23, 2003.

  1. Patrick Larkin

    Patrick Larkin Well-Known Member

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    This has effected me for a while and I don't know what causes it.

    I have a Panasonic 27" TV that buzzes depending on what is on the screen. Actually, I'm not sure if it IS the TV. When whatever is on the screen displays a lot of white, I hear an underlying buzz. When the scene switches to something non-white, the buzzing stops. This is really evident when I watch a hockey game. When the camera fills the whole screen with a wide angle of the white ice, it buzzes. When the camera pans to one end, the buzzing stops (because the whiteness is replaced by fans in the stands.

    I thought this was some sort of cable issue but last night, I was watching my new "Barton Fink" DVD and in one scene, the buzzing started. There was a lot of white on screen. Of course, when the scene switched the buzzing stopped. I watch DVDs with all audio coming from the 5.1 system and the TV receives no signal for audio at all. I muted the TV and the buzzing continued so now I'm thinking its coming from my center channel. The problem is I get the buzzing from network TV which comes though the TV speakers and the stereo is OFF.

    Help! This buzzing drives the wife nuts.
     
  2. Jack Briggs

    Jack Briggs Well-Known Member

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    I've noticed this on Panasonics before, a blaring "TV noise" that even Consumer Reports mentions in its surveys. Lower the contrast a bit and see what happens.
     
  3. Bob Bartlett

    Bob Bartlett Well-Known Member

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    If it is not coming out of your tv speakers it could be yoke buzz or flyback transformer buzz. I can hear the buzz on my hitachi 36" during low volume scenes. My wife doesn't hear it at all. I even had a tech out to look at it and he thought it was normal. Do a search on google and you'll see alot of messages about this.
     

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