Question about Gateway PLSM42TV 42 in. HD-Ready Plasma Television
Gateway 42" Plasma TV making High Pitch Noise
How old is your plasma TV? try check the switch / volume of the sound settings.. Sometimes, when you always increase the volume, it will tend to alter the limit of sound and causing the sound to provide sound undesiredness. I suggest to check it with a liscensed technician.
Posted on Feb 05, 2008
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
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