Toshiba 26hl47 White screen

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  • Shinju
    Badcaps Legend
    • Mar 2014
    • 1239
    • USA

    #21
    Re: Toshiba 26hl47 White screen

    Check the tab bond board at the top of the screen, the 37hl i had the board that the tcon outputs attached to was warped pretty bad, I didn't have any issues with that screen but I did see it putting a lot of stress on those bonds.


    I used high temp rubber shims between the top of the frame and board and it flattened them out straight again to avoid any damage.

    Seems to be a common problem with these older toshiba panels the heat warps those thin boards pretty badly.

    Comment

    • bammbammfran
      Badcaps Veteran
      • Apr 2014
      • 476
      • USA

      #22
      Re: Toshiba 26hl47 White screen

      a tab bond issue won't make the entire screen go white like this one does.

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #23
        Re: Toshiba 26hl47 White screen

        Originally posted by bammbammfran
        a tab bond issue won't make the entire screen go white like this one does.
        It can actually - I've had a Chimei 26" panel cause 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

        • Shinju
          Badcaps Legend
          • Mar 2014
          • 1239
          • USA

          #24
          Re: Toshiba 26hl47 White screen

          Originally posted by bammbammfran
          a tab bond issue won't make the entire screen go white like this one does.
          I only mentioned this since he said he flexed the frame and the picture became unfrozen.

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #25
            Re: Toshiba 26hl47 White screen

            Originally posted by Shinju
            I only mentioned this since he said he flexed the frame and the picture became unfrozen.
            I did not notice that, exactly the same symptoms I had with Chimei 26". And unlike most tab bond repairs I have done it seems to be long-term reliable, I haven't had one fail (done 4 now, I think)
            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

            • CraigR
              Badcaps Veteran
              • Dec 2013
              • 959
              • USA

              #26
              Re: Toshiba 26hl47 White screen

              It was the upper right ribbon cable. I put on some padding on that cable and works good now.

              Comment

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