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hp p1100 21 inch monitor

Discussion in 'Electronic Repair' started by Nash Ingalls, Nov 12, 2004.

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  1. Nash Ingalls

    Nash Ingalls Guest

    hey, just got a second hand hp p1100 monitor, works gret, but
    sometimes the top of the screen shakes/wobbles for a quick second,
    sometime it happens after a few seconds, sometimes after a few mnutes
    and sometimes not at all, any idea what this could be?

  2. James Sweet

    James Sweet Guest

    Probably a solder joint somewhere, hard to say without looking at it.
  3. Nash Ingalls

    Nash Ingalls Guest

    do you think this would be an easy fix, i mean for someone who knew
    what they were doing, or should i accept it going down?

  4. James Sweet

    James Sweet Guest

    If the pic is otherwise good, have it looked at. If you keep running it like
    that it's likely to turn into a not so easy fix.
  5. John Gill

    John Gill Guest

    I had a 17" Sony that had this problem. Most of the time you could
    not see the X-box in the upper right hand corner to exit a program.
    I think your HP is made by Sony.
    The problem turned out to be a weak electrolytic capacitor in the
    horizontal sweep circuit. It had a value something like 2.2 Uf @ 250 volts
    and was located near the flyback transformer on the main circuit board.
    Replacing the capacitor fixed the problem.
    Hope this helps...
  6. Nash Ingalls

    Nash Ingalls Guest

    i have new info to add, it seems to wobble / shake more at certain
    resolution and/or refresh rates, for example, i play alot of mame
    games, and each game loads at its own resolution, or original
    resolution or whatever, so when some games load it wobbles like crazy
    because of some combination or res/refreash and some games don't
    wobble at all, or very little.

  7. James Sweet

    James Sweet Guest

    Do you have a motor, fan, transformer, TV set, etc nearby? Magnetic
    interference can cause such symptoms.
  8. Nash Ingalls

    Nash Ingalls Guest

    no, i even moved it to another room, hooked it up to another computer
    and still does the same thing.

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