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Insignia HDTV High Pitched Noise

The TV will emit a high pitched noise every 30 seconds or less. If it is on mute, it will still emit the tone. We have removed all electric appliances from the area to see if it were just an interference. It still does it. There are no specific channels or volume that it is to be set on in order for it to do it. The only time the sound doesnt happen is when the tv is off. Its getting on my nerves. Please help me if you can!! Thank you!

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  • 346 Answers

Sounds like flyback problem

Posted on Dec 25, 2007

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Posted on Jan 02, 2017

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