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Basic Computer Monitor Problem Troubleshooting

Started by VelMurugan, Dec 13, 2008, 05:22 AM

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VelMurugan

Dec 13, 2008, 05:22 AM Last Edit: Dec 13, 2008, 05:32 AM by VelMurugan
Basic Computer Monitor Problem Troubleshooting

Basic computer monitor problem troubleshooting means just that, the price of computer monitors has come right down over the past year so unless you have a laptop or a new expensive screen, generally it's cheaper to replace it than get it repaired once we have ascertained that it's a fault with the monitor of course.


Back Light Failure


One of the most common faults with the later generation of screens, this includes laptops as well is when the back light fails, if this happens you can still see the screen image but it's very dark.

If the backlight has gone on a laptop then it's a question of how new the laptop is, how much it would cost to replace, against the cost of the backlight repair, which may mean replacing the whole screen. (If you are familiar with dismantling laptops then many laptop screens can be purchased from sites such as eBay for a fraction of the new price.

If the monitor appears to be totally dead more of often it's usually the power cable to the plug which has blown.

If the monitor is on but has not image, and you've checked to make sure the backlight has not failed (as above) then it's worth checking the following.

Is the video cable securely plugged in between the monitor and the computer.

Does the video cable have any signs of damage? Breaks in video cables can happen, check against a working cable.

What's the length of the computer cable? Depending on the power of the video signal, the maximum cable length could be less than 5 metres, especially if you are attempting to display your computers image on a TV

Switch off the monitor and computer, leave for 30 seconds and switch both on together, on some older monitors if the monitor is on before the computer then it may not detect the video signal from the computer.

Does the monitor display text (NO SIGNAL) this simply means it cannot detect a signal from the computer, reasons for this include?

Power off the monitor and computer, leave for 30 seconds and power back on.

Has the computer or the monitor changed? Is so it may mean the computer does not like the resolution or refresh rate that the computer is trying to get the monitor to run at, from Windows at start-up hit the F8 key this will allow you to enter the computer is VGA or safe mode, once you've logged in you can change the video setting from Control Panel > Display to one that's compatible with the monitor.

What type of video input are you using on the monitor? Many monitors have more than one video input, if so your monitor will have a select button on the front to cycle between monitors.

Make sure you are using the latest version of video drivers available for your video card / monitor


Source : ComputerAdvisior

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