Question about Dell P991 19" CRT Monitor

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When powered on led comes on and then off. monitor is now black and wont come on.

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  • 356 Answers

Hi. Try to run the diagnostics by turning the computer on, press F12 on Dell logo, select boot to utility partition and press enter.

If it doesn't have utility partition, then try to remove the video card and put it back in... then turn the computer back on.

If it still doesn't stay on, then you might have to replace your motherboard or buy a new desktop CPU.

Nothing is wrong with your monitor though.

^_^

Posted on Jun 06, 2010

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Posted on Jan 02, 2017

Fix-4U
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SOURCE: Acer AL1716 Blank screen & blinking green power LED

Hi..there,
You've got a busted backlight inverter... Need to replaced a new one...

Posted on Dec 18, 2008

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Whenever there is a power outage, monitor wont power on, i have to wait for more than one hour. No LED light at all.


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Try using a surge protector or a UPS.

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Make sure there is a solid connection between the monitor and the computer. Also, make sure the computer is on. The monitor won't power up completely unless there is a signal going to it. Also, see if the power pack on the monitor's cord is awfully warm. You may have an overheating problem and as a safety the monitor shuts itself off. If it is warm try plugging the monitor into a surge protector or different outlet. Don't use a power adapter that didn't come with the monitor. It may provide too much or too little power. If there is still a problem, contact LG. Hope this helps. Good luck.

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I have lg flatron l1730s lcd black color monitor. I have problem with this. Power not come. some time when i connect it power LED blinking once then no display.

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Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed VIEWSONIC monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague

http://www.badcaps.net

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1 Answer

Can u help me? - Fujitsu-Siemens 900P LCD monitor burned out


Hi..there,
It's seems you got busted capacitors. Replaced all 5 capacitors in right handside with( 5*c8) in the 3-jpg photo power/inverter board.

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1 Answer

Monitor comes on, I can see everything perfect then goes black


"Most" newer monitors will let you know if the are no longer receiving a signal. Sounds like the backlight is burnt out. Try getting a bright (LED works best) flashlight and shining it at the screen at all angles to see if you can see any of what you were doing. If the backlight is on the fritz, either return it on warranty or buy a new one.

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Hi..there,
You've got a busted backlight inverter... Need to replaced a new one...

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