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Sony KDL-40S4100 horizontal image tearing on right half of screen

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    Sony KDL-40S4100 horizontal image tearing on right half of screen

    hi all. i have a sony bravia 40in tv, the image on it will produce 3 horizontal lines, and the image overlaps itself, and itll happen when the tv has been turned off for some time. also, on rare occasion, there will be no image at all. with the tearing, it will eventually clear itself up when its been on for maybe 5-10 minutes, and all is good from there, until its turned off for a while, or power is removed. the lines are more noticable with darker images.

    a side note, there is also no standby light when the tv is off, but i havent been too concerned about it since the tv turns on and off without it, by button and remote.

    so far, i have already replaced the TCon board, and the main board.
    Attached Files

    #2
    Re: Sony KDL-40S4100 horizontal image tearing on right half of screen

    That looks like a panel tab bond problem. Does the POWER led light when the tv is on?
    Last edited by R_J; 05-15-2020, 11:15 AM.

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      #3
      Re: Sony KDL-40S4100 horizontal image tearing on right half of screen

      Yes, power light is lit green when tv is on

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        #4
        Re: Sony KDL-40S4100 horizontal image tearing on right half of screen

        Maybe try the "cutoff tape" method, example there: https://www.youtube.com/watch?v=j7vl7-vZEL8

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          #5
          Re: Sony KDL-40S4100 horizontal image tearing on right half of screen

          LCD panel issue with bad Gate drive which causes the double images you see on the screen, try tape off method as suggested.
          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

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