Question about Vizio SV470XVT 47 in. LCD TV

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No video. LCD comes on. Sound works. Suspect PC Board or LCD Interface, need suggestions.

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  • leafweir Jun 30, 2009

    Don't get menus. It started flickering, then faded to grey. Now it just comes on with sound but no video (Black, but backlit).

  • leafweir Jul 01, 2009

    I've ordered the PC board, if that fails, I'll get the direct interface and try that



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The LCD control board is defective. Normally the LCD control board comes with the LCD panel (with a shield coved on the back of the panel). Check you user’s manual, call the service center to see what they can do.

Posted on Jul 01, 2009


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I would heat it up with a hairdryer and then get it extremely cold and see if the picture comes back while watching it. If it does, you most likely have a fractured solder connection somewhere in the set and it needs repaired. IF nothing changes then i suspect a board might have failed or worse yet, the LCD Panel or the video processing board. Also you might want to try all the inputs to see if any other one works. Does it have a VGA input? try and hook a computer up to it. Good luck Guru Jay

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