Question about Dell Dimension 2400 PC Desktop

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5 year old dell flat screen monitor does not want to wake up now...green power light is on but no picture...turn off then back on picture for a split second then black...

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It is likely that either the fluorescent backlight tube or the inverter that produces the high voltage needed for it is on the edge of failing.
Try different angles to view the screen. If you see kind of a shadow image of the desktop, the display is still working and the above diagnosis is correct.
It isn't impossible for a layman to replace either of the suspected parts but if you decide to do so, I suggest you replace both the tube and the supply (inverter board) since determining which has died would be a more difficult task without having one or two pieces of test equipment to solidly test which part has failed.

Posted on Nov 14, 2009

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Sounds like my brothers laptop dell D610 the lcd screen will turn on for a little bit and then turn off. we noticed if you hold a flashlight to the screen when it was on and you could see video. the back light or the inverter went out ordered a used screen from discount electronics and replaced the lcd with backlight and inverter

Posted on Nov 14, 2009

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