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Touchpad Repair?

Discussion in 'Electronic Repair' started by mike, Jun 14, 2004.

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  1. mike

    mike Guest

    I bought a NEC 2430CD with a non-functional touchpad.
    I loaded the NEC drivers, but the device manager sez
    it's not working or wrong drivers. win98SE

    Took it apart. The ribbon is good, got continuity on all
    contacts from socket to socket.
    There's no mention of the pointing device in the bios.
    Got the latest bios upgrade. External mouse works fine.

    The way this thing is put together with the processor heat
    sink and heat pipe, I can't get at any of the connections while
    it's running.

    Are there any common faults I should be looking at?
    Diagnostic tools that can give me a clue? Can I peek/poke the port
    and tell anything?
    Thanks,
    mike


    --
    Return address is VALID.
    Bunch of stuff For Sale and Wanted at the link below.
    Toshiba & Compaq LiIon Batteries, Test Equipment
    Yaesu FTV901R Transverter, 30pS pulser
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  2. Chaos Master

    Chaos Master Guest

    mike () said those last words:
    AIUI those touchpads are no for repair.
    Why not just use an external mouse?

    []s
     
  3. mike

    mike Guest

    ANYTHING can be repaired. Feasibility is another question.

    There's a new wrinkle. When the laptop is cold, the touchpad works fine.
    After about a minute, it goes crazy and starts opening windows all over
    the place. Reboot and it's dead...not recognized by the system.

    Would be interesting to determine if the problem is in the touchpad module
    or on the motherboard. Touchpad module I'd try to repair/replace.
    Motherboard ain't worth the trouble/risk.

    Are the signals from the mouse module the same as the ones that would
    come in the external PS/2 port? If so, I could remove the touchpad
    module and diagnose it externally.
    Because the laptop has a built-in touchpad.
    It's convenient.
    It doesn't require another thing to carry along and plug in.
    It doesn't have a connector hanging out the back to break when you bump
    something...or a wire to catch on that doorknob and drag your laptop to
    the ground.
    I LIKE the touchpad.
    Resale value is much better.
    Shall I go on???
    mike


    --
    Return address is VALID.
    Bunch of stuff For Sale and Wanted at the link below.
    Toshiba & Compaq LiIon Batteries, Test Equipment
    Yaesu FTV901R Transverter, 30pS pulser
    Tektronix Concept Books, spot welding head...
    http://www.geocities.com/SiliconValley/Monitor/4710/
     
  4. Wild Bill

    Wild Bill Guest

    Yeah, but who can stand the blisters?

    Cheers
    WB
    ..................

     
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