Question about Computer Monitors

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Monitor turns on for a couple of seconds then goes black

My mag innovision monitor lt773s is plugged in correctly and will work for a couple of seconds then go black. i turn the monitor off and on and it continues to do the same thing. do you know what the issue could be

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  • gjj1947 Nov 15, 2008

    I have a X2gen MW22U monitor. It stays on for a few seconds and goes blank. I have to turn the power off then on again. It won't stay on. Also the left side of the screen is slightly darker than the right. I tried the auto adjust but it only partially helps.

  • Hog Fan 01 Nov 15, 2008

    Exactly the same problem with a Mag monitor

  • Anonymous Dec 09, 2008

    where can i buy the inverter circuit

  • Anonymous Feb 16, 2009

    Mt AOC 22ich Widescreen is doing the same thing, it will come on for a
    matter of seconds and then it will shut off, i plug in my big bulky
    Desktop monitor and its not doing it.


  • preludedez Feb 21, 2009

    how do i check to see if the caps are bad if they are not swoll or split on the top?

  • andreymelnik Mar 29, 2009

    same thin, except i got a viewsonic va720

  • Anonymous Apr 28, 2009

    my monitor switches off ater i have swithcehed on but the gren light stays on, wen i switch it back on it will repeat the pocess anyone now the problem?? please help

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This problem is due to trouble in the inverter circuit which powers the lights inside the monitor. (LCD monitors require a light source so you can see the display. Your display is still there but you can't see it.) It is repairable. Usually the cause is failure of capacitors in the inverter circuit that need to be replaced. I haven't worked on this particular model so I can't give exact part numbers or values. Follow the wires that come from the backlight to the circuit board and you will see the inverter circuitry. Capacitors in that area should be checked and replaced if they are visibly swollen or have tops that have split, or if their values are out of tolerance. Although there are other possible faults, this often get the monitor going again.

Posted on Nov 21, 2008

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