Samsung UE46D7000 Vertical Lines / Discolouration

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  • DaveGladwin
    Member
    • Apr 2014
    • 10
    • UK
    #1

    Samsung UE46D7000 Vertical Lines / Discolouration

    Hi all,

    After some advice / guidance with this one, if possible.

    Bought the set used around 2-3 months ago and display was fine. Over the past fortnight I have noticed some vertical areas of discolouration appearing near to the left hand side of the screen, and seems to be slowly spreading towards the middle.

    I initially just resized the image on the screen to be slightly smaller (as it was pretty much on just at the edge) but the problem seems to be spreading towards the centre of the panel.

    The lines / areas do not appear to be 'dead' (unlike a lot of the other vertical lines I have seen that are a solid red/blue/green etc) and actually show the correct image, just with some discolouration.

    The intensity of the discolouration seems to vary based on the content the screen is showing and it is almost looks as if the signal is being pushed up or distorted by a few pixels.

    I have tried a replacement TCON board which has (predictably) made no difference. I suspect it is a Tab/Screen issue as it only seems to affect the 3" in from the left of the screen which would be the responsibility of a single tab..

    Is there anything else I can check for, or could this be some sort of power issue on one particular tab?

    I have tried applying pressure to the tab join/bond under that area, and even cleaning, which has made no difference.

    I have attached some images showing the fault.

    Thanks in advance,
    Attached Files

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    Last edited by DaveGladwin; 04-19-2014, 10:01 AM.
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