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Monitor problem

Discussion in 'Electronic Repair' started by Malcolm, Jan 21, 2004.

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  1. Malcolm

    Malcolm Guest

    Looking at my neighbours' PC for them. One thing I've noticed is an apparent
    problem on the vertical scan of the monitor. It's taking much longer than it
    should to fly back up to the top of the screen, so that the top 8-10 visible
    lines actually appear as diagonal lines across the rest of the screen.

    Any idea what the problem is likely to be?
    Is it likely to be repairable (with a simple component replacement or
    whatever)?
    Is the effect likely to worsen if unchecked?
    If so, how long before the monitor becomes unviewable?


    Malcolm (Fantrace).

    Be happy.
     
  2. Jerry G.

    Jerry G. Guest

    There are many variables that can cause this. The defect can be in the
    blanking circuits, scan circuits, video drive circuits, high voltage
    multiplier, or the CRT itself can be going weak. The various areas of the
    monitor would have to be properly checked to know the exact cause. Then the
    next step would be to find the defective part(s) that are causing this
    condition. Many times, electrolytic capacitors in the various areas can also
    be defective.

    I would suggest you take the monitor in for a estimate for repairs. If it
    is more than about 3 to 5 years old, it may not be worth to invest in.

    --

    Greetings,

    Jerry Greenberg GLG Technologies GLG
    =========================================
    WebPage http://www.zoom-one.com
    Electronics http://www.zoom-one.com/electron.htm
    =========================================


    Looking at my neighbours' PC for them. One thing I've noticed is an apparent
    problem on the vertical scan of the monitor. It's taking much longer than it
    should to fly back up to the top of the screen, so that the top 8-10 visible
    lines actually appear as diagonal lines across the rest of the screen.

    Any idea what the problem is likely to be?
    Is it likely to be repairable (with a simple component replacement or
    whatever)?
    Is the effect likely to worsen if unchecked?
    If so, how long before the monitor becomes unviewable?


    Malcolm (Fantrace).

    Be happy.
     
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