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Hi I bought a Panasonic 42 Inch class 720P Plasma HDTV TH-42PX80U, the picture is fine, but there is a humming sound in the background of the audio. The louder I turn the tv the louder the hum. I tried fooling with all the audio settings, but it didnt' do much. It is really driving me crazy. Do you know what the problem could be?? Thanks in advance for your help. - Mandy

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If turning up the audio amplifies the problem, it is in the initial stages of audio. It could very likely be outside the TV, try difference sources to troubleshoot your setup. If it hums on all inputs, the problem is before your audio switch and could be on the board with the AV jacks. Note all plasma tvs hum out of the back of the tv (ie power board, y-sus, z-sus board and panel all make a little hum noise)

Posted on Dec 06, 2008

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