Sharp LC40LE831E Picture Off and On

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  • anotherdude
    Badcaps Veteran
    • Feb 2013
    • 488
    • uk

    #1

    Sharp LC40LE831E Picture Off and On

    Have a Sharp LC40LE831E that displays a image flickers then cuts out then displays then cuts out, all the while the backlights look like they're still on

    Not able to do any troubleshooting as of yet, as i'm not home to do it.

    here's a video of what's happening

    https://www.youtube.com/watch?v=tR8jdTca7a0

    Any suggestions on troubleshooting or if anybody knows the issue
  • Davi.p
    Badcaps Legend
    • Sep 2009
    • 4265
    • Italy - Milan

    #2
    Re: Sharp LC40LE831E Picture Off and On

    Video is almost short, possible a problem with backilght. Another typical problem is the KIA4?? regulator on the PSU. TV model is maybe LC-40LE813E?
    Last edited by Davi.p; 07-19-2020, 05:46 PM.

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #3
      Re: Sharp LC40LE831E Picture Off and On

      Originally posted by anotherdude
      Have a Sharp LC40LE831E that displays a image flickers then cuts out then displays then cuts out, all the while the backlights look like they're still on

      Not able to do any troubleshooting as of yet, as i'm not home to do it.

      here's a video of what's happening

      https://www.youtube.com/watch?v=tR8jdTca7a0

      Any suggestions on troubleshooting or if anybody knows the issue
      So if you look at the back of the TV (back cover removed), do you see the backlights stay on while the video images disappear?
      Do you see any front panel indicator lights blinking code?
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

      Comment

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