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If you turn the monitor off then about 1020 sec turn it back on and have
a picture for five sec again it sound like the power supply in the
monitor. but if that did not solve the problem, the
picture board on your monitor is bad, since it goes off after few
seconds and the power led or button is on, it means the
board of your monitor has developed fault and will need to be replace.
advice you replace the picture board on the screen of your monitor to
solve the problem of the blank screen.
mhaupt, Tell me if it is both BLACK and BLANK or just BLACK after you do the flashlight trick !!! This is no joke!! understand?? When the screen goes black hold bright flashlight where you saw an image on the screen (icon or win start button) and tell me what you see or don't see!!
Get back to fixya with new comment to your original post. 12fixlouie
Ok, another words, monitor powers up for few seconds and shuts down by itself. If green LED on the front panel turns off as well or stays on? If stays on, then inverter turns into protection mode because of old backlight lamps. If it turns off in same time with an image on the screen, then there are some bad electrolytic capacitors in the power supply.
First you'll have to power off the system.
Please power on the system and as soon as you see the Dell logo please tap the F2 button 3 - 4 times.
The computer will go to the system setup. Check if the screen goes blank here.
If the screen stays on then try this.
1. Please power off the system.
2. Please power on the system and as soon as you see the Dell logo please tap the F8 button 3 - 4 times. You'll reach the Windows Advanced Boot Options Menu on the screen.
3.Select Safe mode with Networking.
4. Select Administrator at the log in screen.
5. Warning dialog box with the message Windows is running in safe mode. appears. Click the Yes button.
6. The desktop appears with the words Safe Mode appearing in all four corners.
7. Uninstall the video drivers and restart the computer.
8. Resintall the video drivers.
It is one of three things, One is that it's not recieving a signal, mine flash when the computer is shut down, several monitors do this now. The second is that the either the video card is in need of service, or if you don't have a video card in your machine, it is either a connection that is intermittent, check the other end of the cable, or the monitor is in need of service, there is a circuit board that gives it a boost on start up. How old is the monitor and what brand? all the info is needed to go any further, thanks, if it is 5 years old more or less it is the monitor gone bad, more than likely
Use a reset sequence on the monitor-
1. turn off monitor
2. unplug power
3. plug power back in, holding down the last button on the left, then push
the power button to turn back on and off three times, holding on the third try
until it comes on- hold for ten seconds and release; the monitor should work
The LCD screen may be burned out. There's whats called an invertor board and there is an electronic ribbon strip on the LCD itself. If you look very carefully you can probably see a faint image on the screen. The LCD screen will need replacing. Before doing anything with this monitor, try it on another computer first and if you can try another monitor on your computer. Other than that, there really is nothing you can do but replace the monitor.
I too have an LCD Xerox - it worked fine for a while, then kept going blank and going onto standby. Unplugging and reconnecting from both pc and power seems to reset it. It hadn't happened for months but started again the other night when it occurred to me that I had just downloaded MS security updates - I've removed the ones that I downloaded just before it started happening again and the problem seems to be solved. Hope this helps someone.
Unscrew 4 screws on the back side. Place the monitor with the front up and open it along the upper seam. Turn it again and lift the back cover. Shift the inner case "up" and take the button holding plate out - it is being held only by a tape. Inspect it and clean it. You might have to replace the condensers and/or switches on it.
This might solve the problem, but there may be other causes as well.