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My vizio 47in LCD tv is making a high pitch noise while watching the tv. The directv is conected with an hdmi cable. Any solutions or explanations. The tv is 7 months old

Posted by jvspigener on May 05, 2012

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Product Troubleshooting for Vizio

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Answers :

Actually someone would have to open set and power it up--try to locate area where sound here is coming from.The first place would be in the power supply which will have a number of transformers (not giant ones) that can vibrate hard enough to make a high pitched buzz or sound.If localized to a single board the board can be replaced but in our shop if we have narrowed it down to a single part--usually some hot glue on the offending part can remove the sound---issue is not usually one that will cause a failure but irritates people in the same room with the set.Since the set will have to be opened first to see or in this case hear where the sound is coming from it may be repairable without replacing a board.SD TECH
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