Very strange problem Samsung 920WM

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  • glutton4punishment
    Senior Member
    • May 2013
    • 81
    • United States

    #1

    Very strange problem Samsung 920WM

    I have a 2007 samsung synchmaster with a wierd symptom.

    The top third to quarter of the screen is much brighter than the bottom part. AND this is a very well defined horizontal border across the whole screen between the upper and lower parts. That is, the good part doesn't gradually fade into a bad part, it's like crossing a border. The bottom 2/3-3/4 of the screen displays fine.

    the other WEIRD part is that when the mouse pointer is on the top part of the screen (the clearly defined bright part), the pointer has a ghost/trail. That is, if you move the mouse pointer across the problem part of the screen, it has a trail of pointers following after it, and there seems to be some lag between my hand movement and what happens on the screen.

    No components LOOK bad. I don't have any spare parts to switch out with. I replaced all the caps on the tcon board.

    The pics are of the screen saver moving across the border, both downwards and upwards.

    As always, your help is greatly appreciated!!
    Attached Files
    Last edited by glutton4punishment; 09-28-2013, 03:01 PM. Reason: no pics
  • Mrx3750
    Badcaps Veteran
    • Jul 2013
    • 311
    • USA

    #2
    Re: Very strange problem Samsung 920WM

    Sharp border with a clearly definable video issue (in this case the mouse leaving trails or ghosting) tells me there's a fault in whatever processes the video for the LCD panel. T CON board probably.

    Comment

    • glutton4punishment
      Senior Member
      • May 2013
      • 81
      • United States

      #3
      Re: Very strange problem Samsung 920WM

      thanks, I'm trying to post pics, but I the badcaps server keeps rejecting me after uploading them.
      After uploading to 100%, I get an internal server error message 500, and then nothing shows on the thread.

      OK, now I'm going to try with url's.

      http://media502.dropshots.com/photos.../sq_120032.jpg
      Last edited by glutton4punishment; 09-28-2013, 03:55 PM.

      Comment

      • glutton4punishment
        Senior Member
        • May 2013
        • 81
        • United States

        #4
        Re: Very strange problem Samsung 920WM

        don't yell at me b/c I couldn't do this as attachments!













        I have no idea why one pic came out so big.

        It's a pity that the picture that shows the display came out small. What you can see is that below a horizontal line/position, every thing is fine. Above that your can see how distorted the screen saver is.
        Last edited by glutton4punishment; 09-28-2013, 04:02 PM.

        Comment

        • glutton4punishment
          Senior Member
          • May 2013
          • 81
          • United States

          #5
          Re: Very strange problem Samsung 920WM

          'nother try at pics
          Attached Files

          Comment

          • glutton4punishment
            Senior Member
            • May 2013
            • 81
            • United States

            #6
            Re: Very strange problem Samsung 920WM

            This is the wierd display:

            Comment

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