UE55F8000ST , lines & banding on display .

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  • zen
    Badcaps Veteran
    • Apr 2011
    • 511

    #1

    UE55F8000ST , lines & banding on display .

    Hi all


    Anyone had luck with this issue ?
    Attached Files
  • zen
    Badcaps Veteran
    • Apr 2011
    • 511

    #2
    Re: UE55F8000ST , lines & banding on display .

    Removed ribbon from T-CON that supplies LEFT side of display .

    Powered on & RIGHT side of picture is perfect .

    Issue with display LEFT side .

    Anyone had luck blocking relevant data / clock lines ?

    Comment

    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12075
      • U.S.

      #3
      Re: UE55F8000ST , lines & banding on display .

      thats a good place to start, also check the little caps on the panel driver board on that bad side, unhook it from tcon then test it, look for shorts in diode/continuity mode, can also check for low ohms in ohm mode.

      Comment

      • zen
        Badcaps Veteran
        • Apr 2011
        • 511

        #4
        Re: UE55F8000ST , lines & banding on display .

        Hi & thanks very much for your advice , but not a S/C this time .


        Managed to get rid of all the banding & lines , but LEFT half of picture darker than RIGHT .

        Hopefully customer will accept like this , or that's most of the day lost .


        With a rear view of the TV , disconnected right side ribbon at T-CON , folded it back & counting from RIGHT of ribbon , i blocked PINS 14 - 21 .

        Tried loads of other combinations , but couldn't improve on picture .

        https://youtu.be/_U84aBGTN6o
        Attached Files

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