Question about Vizio SV470XVT 47 in. LCD TV

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I have a 42 inch Gallevia model GV 42L. When TV is initially turned on blue screen comes up for about 2 seconds, it then goes black and a screeching noise comes through both speakers on the TV. No Picture and no other sound. Any thoughts on what might be causing this? Thanks in advance.

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  • Vizio Master
  • 11,800 Answers

The power source has failed - the sound is the source that autooscillates because even its protections have been damaged and are no longer capable of safely shut it down.
It's a big failure so call a repairman, ther's nothing more you can do.

Posted on Aug 31, 2010

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Just try to reset so picture will back to normal again, some LCD TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
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