Our school recently purchased 28 HPL1706 monitors and to date 2 have developed a thin horizontal white line across the screen. On the first the line is 1/3 from the bottom of screen and on the second 1/3 from the top. The pointer appears to pass underneath this line and it is not a scratch. When monitor has no input line appears white and of different intensity in different 1/3s of the screen - we await HP's comments but don't expect much being a school in Malawi'- I always said we should have gone with Acer's as we have had no problems from previous monitors.
It is the problem of monitor pcb in vertical section.check vertical ic for dry soldring. Resolder the ic if problem still on then change ic or check components related ith it. check continuity of vertical deflection coil.
Hope this be of initial help/idea. Pls post back as requested, how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FIXYA.
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Many thanks - we are going to check over weekend - fingers crossed.
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