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Possible_backlight_issue my monitor works , but won't stay lit. cause everytime i toggle the monitor off and on, it seems like the backlight blacks out 2 seconds after it's on. but i can see windows running in the background,so it is functional.

Posted by ron black on

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  • mylesgarber Feb 08, 2008

    I have the L4BX kogi and yes the lcd screen is very dark I can see an image when I put a light on the screen . OK i know its the blubs?" i hope but who fixes this . who do I send it to?

    thanks Myles Garber

  • Anonymous Mar 04, 2008

    I've got the EXACT same problem; when I cu it on about 2 seconds later the screen blacks out and if I toggle it off/on it relights but goes out again 2 seconds later ... shining a flashlight on the screen at an angle shows it's got my page there.

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  • 47 Answers

Hi goldeneye, Sounds like the backlight inverter board. Don't mind the explaination I just cut and paste this solution from one of my others. It's a very common problem. LCD's use four small Cold Compact Fluorescent bulbs to back light the display. (thats what gives the LCD it's brightness allowing you to see it) The inverter board runs these lights and when they go bad they will typically show symptoms like you have or the monitor power light comes on and you have either no display or a very dim display. If you ever have one that has no display but the power light is on you can check by shining a flashlight directly into the LCD from the front (right into the screen) if you can see an image then it's either the inverter board (most likely) or the CCFL bulbs have gone bad. The inverter board and CCFL's are replaceable. Good Luck, El Duderino

Posted on Nov 26, 2006

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