Toshiba 50UL4B63DG faulty screen?

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  • sigmeyer
    Senior Member
    • Feb 2020
    • 151
    • Serbia

    #1

    Toshiba 50UL4B63DG faulty screen?

    I got this 50 inch tv the screen starts off with almost nothing visible but the top part of it , and it would slowly kick in and the picture would be visible , but then over time it would go greyish with the top of it mostly intact. I did have instance where the screen would be fucked like that and i would touch the cpu and memory to see if it would react and a couple times it would screech on the speakers and restart. After that it would show a better picture somewhat but afterwards i touch the cpu and not much is achieved. Im wondering is this a screen fault or should i pursue this with a donor board and see if that fixes the issue?
  • sigmeyer
    Senior Member
    • Feb 2020
    • 151
    • Serbia

    #2
    Here are the pictures
    Attached Files

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    • tiki66
      Member
      • Jul 2016
      • 40
      • Croatia

      #3
      This is a screen fault. Screen manufracturer is Panda and they die alot. Woudn't recommend wasting your time on it

      Comment

      • yokoono
        Badcaps Veteran
        • Apr 2010
        • 491

        #4
        Take the cover off and take pictures of the inside.

        Comment

        • sigmeyer
          Senior Member
          • Feb 2020
          • 151
          • Serbia

          #5
          I changed all three flat cables , and that's ruled out , at this point I'm pretty certain it's the screen fault
          Attached Files

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          • sigmeyer
            Senior Member
            • Feb 2020
            • 151
            • Serbia

            #6
            I'm gonna dump the firmware and upload it to the Russian remont website if anyone ever needs it

            Comment

            • yokoono
              Badcaps Veteran
              • Apr 2010
              • 491

              #7

              You can't save the software from the TV. At most, the memory dump. Disconnect the 2 lvds cables one by one and see if the image is correct on the remaining cable.


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              • yokoono
                Badcaps Veteran
                • Apr 2010
                • 491

                #8
                Also measure these voltages on the t-con and post what values ​you find.​
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