Vizio GV47LFHDTV20A Flashing Picture and Lines on Screen Fix

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  • johnboy1313
    Badcaps Legend
    • Nov 2012
    • 1959
    • USA
    #1

    Vizio GV47LFHDTV20A Flashing Picture and Lines on Screen Fix

    Flashing, choppy picture when source is connected
    http://www.youtube.com/watch?v=1o74xrc4amw

    And flashing lines on the screen when no source is detected.
    http://www.youtube.com/watch?v=S7KloKqgzUo

    This one turned out to be an easy fix. I suspected typical bad voltage regulators but didn't find any that measured out of spec. After the regulators checked out, I started checking voltages from the PSU. As I stuck my probe in to check the 5V leg of the PSU, I bumped the LVDS cable and the picture cleared right up. I wiggled the cable and the picture cut in and out as I wiggled. I unplugged the cable from the T-Con and used a folded piece of paper in the female connector on the board and on the pins of the male connector on the cable to remove any dirt or oxidation. I plugged it back in and was unable to get the picture to cut out when I wiggled the cable.

    Another one saved.
    Last edited by johnboy1313; 09-24-2013, 08:26 PM.
    Tags: None
    • Maxstang
      Senior Member
      • Dec 2009
      • 61
      #2
      Re: Vizio GV47LFHDTV20A Flashing Picture and Lines on Screen Fix

      Awesome! Just had the same kind of fix on one of mine. I'm wondering if hot glue on the cable/connector would help this from recurring.

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