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Need MagicGraph 128XD (NM2160B) Data

Discussion in 'General Electronics' started by Ben Allgor, Feb 4, 2004.

  1. Ben Allgor

    Ben Allgor Guest

    Does anyone have or know where I can get application and technical data on
    the Neomagic Chip MagicGraph 128XD part no. NM2160B ? I would at least
    like the pinout. It is the graphics chip in my laptop, and it seems to be
    failing when it warms up (writing colored blocks all over the screen). This
    chip and one component seem to be causing the problem (cooling them improves
    the display), but I would like to be sure the signals on the pins are in
    spec before I decide to junk the laptop.

    Ben

    --
    C. Ben Allgor, PE
    Consulting in electronics, measurement, embedded systems.
    http://users.aol.com/benallgor
    mailto:
    Tel/fax: 616-657-4871
     
  2. Garrett Mace

    Garrett Mace Guest


    Maybe that one component is bad, causing the NM2160 to overheat, which then
    responds to being cooled down?

    I don't think having the datasheets will help you, unless you intend to
    actually replace that chip. If you're going to junk the laptop because the
    display is bad, and you have no intention of fixing it no matter what you
    discover, then you might as well spare the effort and chuck it in the trash
    bin.

    Though if it's an Acer Extensa 710T, I'd buy it from you for $50 for parts.
     
  3. Ben Allgor

    Ben Allgor Guest

    Actually, if I was going to replace the chip, I wouldn't need the data
    sheet. It is possible that another component is causing the graphics chip to
    fail. If I know what the pins are supposed to have on them, I might see
    with a scope or logic analyzer that one has an incorrect signal.

    If I can't get the chip data, I think I'll look into a thermoelectric cooler
    for it. If that won't work, I'll canabalize it.

    Ben

    --
    C. Ben Allgor, PE
    Consulting in electronics, measurement, embedded systems.
    http://users.aol.com/benallgor
    mailto:
    Tel/fax: 616-657-4871
     
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