Question about Panasonic TH-37PE30 37 in. Plasma Television

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Buzzing When tv is on there is a buzzing noise which changes tone when picture changes./

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  • Anonymous May 04, 2008

    my bush 32" Lcd tv makes a mad buzzing noise everytime the picture changes,when its lighter its louder and when its darker its more muffled any help would be appreciated cheers

  • Anonymous Sep 30, 2008

    I have the same problem on a Pioneer 436SXE



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The noise is caused by dust on one of the toroidal transformers(usually a round looking thing with wire wound around it). Go to the back of your television and try and pinpoint were the sound is coming from. Turn your television off and blow it out with compressed air if it is close to air vents in the television. If you cant see it you might have to open your television back panel.

Posted on May 01, 2009

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Go to the rear of the set and listen to where the noise is coming from, squeeze the top corners and see if the sound get muffled, take the back off the set and line the edges of the back cover with some insulation foam that is used around doors, it should quiet it down some, the panels buzz in most 42 inch and above plasmas and it's normal, you can also put RTV silicon around the transformers and large capacitors, they have a tendency to produce a loud humming or buzzing sound also

Posted on Feb 17, 2007

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  1. The buzz is related to the intensity of the light. An all-white background will produce the loudest buzz. Turning the brightness down (cinema mode) makes for the lowest buzz. Panasonic told me it was from a bad ground in the Time Warner cable. I have not tested this by seeing if a DVD makes the same sound yet. I will bet it will. Not a solution; just a direction.

Posted on Oct 09, 2008

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