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HP Pavilion ZT1135 LCD Display Problem

Discussion in 'Laptops' started by Don Allen, Oct 11, 2005.

  1. Don Allen

    Don Allen Guest

    We bought a HP ZT1135 for our daughter when she entered college several
    years ago. With exception of the failure of the IBM TravelStar HD, it's
    been very reliable. This past weekend, the LCD display started acting
    up. Here are the symptoms: the screen toggles from working fine, to a
    white screen, then to a gray screen with a vertical raster or vertical
    bars totally across the display, and then back to normal . . . and, so
    on in that progression.

    I connected a monitor to the DB-15 video connector, and the display is
    normal using the external monitor. I would presume this eliminates the
    S3 video card from the failure possibilities.

    Does the LCD display failure mode sound like the LCD power inverter
    circuit is the cause of the problem? Or, should I look elswhere?

    TIA for any replies.

    Don Allen, Oct 11, 2005
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  2. Don Allen

    Mike S. Guest

    First on my list would be the flexible cable that connects the LCD display
    to the motherboard. The connector at either end could be loose, or the
    conductors in the cable may be intermittent due to flexing.
    Mike S., Oct 11, 2005
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