Technika LCD 26 207 Colour fault on right hand side of screen

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  • Jon Templeman
    Member
    • May 2011
    • 16

    #1

    Technika LCD 26 207 Colour fault on right hand side of screen

    As you can see from the pictures, the whites are being displayed as pinks in this section of the screen

    Any help would be greatly appreciated

    TIA

    Jon

    ps Here are a couple of links to videos of the fault

    Technika LCD26 207 Video 1
    http://www.youtube.com/watch?v=y_iNKKjXjDQ

    Technika LCD26 207 Video 2
    http://www.youtube.com/watch?v=IOKr4zYMITE
    Attached Files
  • Village Electronics
    OldPro
    • Apr 2011
    • 118

    #2
    Re: Technika LCD 26 207 Colour fault on right hand side of screen

    Originally posted by Jon Templeman
    As you can see from the pictures, the whites are being displayed as pinks in this section of the screen

    Any help would be greatly appreciated

    TIA

    Jon

    ps Here are a couple of links to videos of the fault

    Technika LCD26 207 Video 1
    http://www.youtube.com/watch?v=y_iNKKjXjDQ

    Technika LCD26 207 Video 2
    http://www.youtube.com/watch?v=IOKr4zYMITE
    This is a defective LCD panel.

    Comment

    • truep
      Badcaps Veteran
      • Aug 2010
      • 373
      • USA

      #3
      Re: Technika LCD 26 207 Colour fault on right hand side of screen

      Could also be a defective tcon board or a bad connection between the tcon and the panel.
      It looks like it's in about 1/4 of the screen. Mant TCON boards have 4 connectors going to the panel. I would first check the connections. There is a small tab that runs across the connector that must be popped up to remove the cable (they are delicate). remove the dables and clean the cable bare side GENTLY with a pencil eracer. You might also try replacing the tecon board. The tecon board is usually under a shield at the top of the panel

      Comment

      • Jon Templeman
        Member
        • May 2011
        • 16

        #4
        Re: Technika LCD 26 207 Colour fault on right hand side of screen

        Hello and thanks to you both, Village electronics and truep, for your replies.

        I will have a go at truep's suggestion and update the forum with the results

        Thanks again, best regards,

        Jon

        Comment

        • Jon Templeman
          Member
          • May 2011
          • 16

          #5
          Re: Technika LCD 26 207 Colour fault on right hand side of screen

          Originally posted by truep
          Could also be a defective tcon board or a bad connection between the tcon and the panel.
          It looks like it's in about 1/4 of the screen. Mant TCON boards have 4 connectors going to the panel. I would first check the connections. There is a small tab that runs across the connector that must be popped up to remove the cable (they are delicate). remove the dables and clean the cable bare side GENTLY with a pencil eracer. You might also try replacing the tecon board. The tecon board is usually under a shield at the top of the panel
          Hello Guys,
          I found the TCON board - Pictures attached, correct me if I am wrong - And I am having difficulty removing the cable, any suggestions please?

          The cable that went into the silver connector came out no problem.

          Thanks in advance,

          Jon
          Attached Files

          Comment

          • PlainBill
            Badcaps Legend
            • Feb 2009
            • 7034
            • USA

            #6
            Re: Technika LCD 26 207 Colour fault on right hand side of screen

            Originally posted by Jon Templeman
            Hello Guys,
            I found the TCON board - Pictures attached, correct me if I am wrong - And I am having difficulty removing the cable, any suggestions please?

            The cable that went into the silver connector came out no problem.

            Thanks in advance,

            Jon
            This might be a latching connector. One part will lift up, then the cable will slide out. Don't force it!!! Pictures from several angles would help.

            PlainBill
            For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

            Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

            Comment

            • Village Electronics
              OldPro
              • Apr 2011
              • 118

              #7
              Re: Technika LCD 26 207 Colour fault on right hand side of screen

              Originally posted by Jon Templeman
              Hello Guys,
              I found the TCON board - Pictures attached, correct me if I am wrong - And I am having difficulty removing the cable, any suggestions please?

              The cable that went into the silver connector came out no problem.

              Thanks in advance,

              Jon
              Note the black line across the blue portion of the ribbon cable. This is the insertion depth indicator. Just below that line there is a hinged latch. That will pull up and release the cable.

              Note: In the other picture there is a PC board permanently connected to the LCD panel. There are 4 ribbon cables running from that board to the panel. Imagine a matrix of cells feed by each ribbon to the cells. That matrix is not getting green control signals from the electronics or ribbon that feeds it. It could be the ribbon that has come apart from the panel. It could be a failure of the electronics on the PC board. Neither is repairable and the problem will continue.

              Comment

              • Jon Templeman
                Member
                • May 2011
                • 16

                #8
                Re: Technika LCD 26 207 Colour fault on right hand side of screen

                Village Electronics, you are correct, there is a fault / break in the cable (The one in the red box in the picture) leading to the LCD panel.

                I noticed that when pressing the cable the fault came and went, so done a bodge job and managed to get the TV working again.

                Not perfect but it will do :-)

                Thanks for all the help guys,

                Jon

                http://www.youtube.com/watch?v=AdyCW7_qWZ8
                Attached Files

                Comment

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