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Does the fault appear on the laptop screen aswell? It appears by your description that the fault is only on the external monitor. If the screen comes on for a moment and then goes blank as described, then this appears to be an invertor fault. It is very common among laptop and tft screens and requires the invertor inside the panel to be replaced / repaired. Simply plug the screen into another computer to confirm.
disconnect the signal cable and power on then see the massege on monitors screen "NO SIGNAL CHECK THE SIGNAL CABLE"if it appears then monitor is ok if not then monitor is faulty check the signal cable and replace it if faulty problem will be solved
Your resolution is set above what the monitor supports.
when computer is first starting up hit f8 to get to boot modes.
choose Enable VGA Mode: This option starts Windows in 640 x 480 mode by using
the current video driver (not Vga.sys). This mode is useful if the
display is configured for a setting that the monitor cannot display.
When you are booted into windows you can then set your resolution to the highest that the monitor supports which is 1440x900
1. Turn off both your computer and the monitor.
2. Unplug the video cable from the back of the computer.
3. Turn on the monitor.
If the monitor is functioning properly, you will see a box in the illustration below.
This box appears during normal operation if the video cable becomes disconnected or
damaged.
4. Turn off your monitor and reconnect the video cable; then turn on both your computer and the
monitor.
If your monitor screen remains blank after using the previous procedure, check your video
controller and computer system; your monitor is functioning properly.
Warning
The Power supply inside the monitor can be hazardous and donot open the monitor while power on.
Donot work with the monitor when it is open and the power supply is on.
If there is something wrong with the input signal, a message appears on the screen or the
screen goes blank although the power indicator LED is still on. The message may indicate
that the monitor is out of scan range or that you need to check the signal cable.
The fault could be a faulty inverter board or a faulty CCFD lamp. The inverter supplies high voltage to the CCFL lamp. The CCFL lamp is a mini fluro lamp and can dim with age. Check LCD Parts for service, parts and DIY info - click on this link to their WEB site : - www.lcdparts.net
Sounds like you have a bad inverter. You will need to open up the monitor to get to the screen to access the inverter board and replace it. If you are handy you can do the job yourself but if not then you will need to take it in to a computer repair shop to have it serviced. Depending on how old this monitor is, the cost of the repair maybe prohibitive.
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