Vertical lines after main board replaced

Discussion in 'General TV Discussions Forum' started by Gibsy, Jan 10, 2019.

  1. Gibsy

    Gibsy
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    Hi

    Due to HDMI3 (ARC) failure I have had to have the main board replaced in my Sony 65ZD9 - under warranty from John Lewis by Martin Dawes.
    HDMI 3 now working again but there a a number of faint vertical lines on the screen mainly visible on light coloured scenes or panning. I had one or two previously but nothing like now - how can a board replacement cause this and is there anything I can do?
     

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