Sharp LC-32AV22U - Powers on, backlit, displays vertical lines, *Mostly* unresponsive

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  • LBrand
    Member
    • Dec 2012
    • 15
    • United States

    #21
    Re: Sharp LC-32AV22U - Powers on, backlit, displays vertical lines, *Mostly* unrespon

    Here's a pic of the board.



    Is there any way to be sure it's the problem? Something to look for or test?

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #22
      Re: Sharp LC-32AV22U - Powers on, backlit, displays vertical lines, *Mostly* unrespon

      Yes, can you do the hairdryer test on it?
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

      Comment

      • LBrand
        Member
        • Dec 2012
        • 15
        • United States

        #23
        Re: Sharp LC-32AV22U - Powers on, backlit, displays vertical lines, *Mostly* unrespon

        Tried the hairdryer on the T-con - no change.

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #24
          Re: Sharp LC-32AV22U - Powers on, backlit, displays vertical lines, *Mostly* unrespon

          OK, perhaps you can hook it up to a video source and see what happens when it fades out -- perhaps it freezes or the video continues.
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

          Comment

          • LBrand
            Member
            • Dec 2012
            • 15
            • United States

            #25
            Re: Sharp LC-32AV22U - Powers on, backlit, displays vertical lines, *Mostly* unrespon

            hooked it up to my laptop - had to push the input button blind until something came up as the display of anything is hit or miss (right now is a miss). Got it to the right one and this is what I saw - should have been the desktop with folders & files:


            Played a video to see how the image changes - and this must have been the "sunset" we saw - maybe on the tv input at the time:



            For reference - this is a photo of the laptop screen, showing the video that *should* have been playing:

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #26
              Re: Sharp LC-32AV22U - Powers on, backlit, displays vertical lines, *Mostly* unrespon

              I have a feeling it's still a panel failure. Look at the video:
              https://www.youtube.com/watch?v=uLOGAJCrAGg

              But perhaps the bonding failure has been permanent and cannot be fixed, but I have not had this happen before.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

              Comment

              • LBrand
                Member
                • Dec 2012
                • 15
                • United States

                #27
                Re: Sharp LC-32AV22U - Powers on, backlit, displays vertical lines, *Mostly* unrespon

                it sure does look like that. but without the moments of video. I think I'm done for tonight - thanks so much for all your help. Not sure what to do beyond this point.

                Comment

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