Keeping your computer monitor in good working order is just requires you to be able to do some basic repairs and maintenance. Regularly cleaning of the monitor, particularly the backs of monitors if you own a CRT or cathode ray tube monitor, will ensure that the monitor doesn’t die early because of dust and dirt build up clogging the vent holes on the back of the monitor. Use a soft, dry cloth or canned air to clean the dust and dirt from these holes. Clean the back and case of an LCD monitor the same way.
Keep the screen clean by using a soft, dry cloth to wipe away dirt and smears, or a soft cloth (not a paper towel) slightly dampened with alcohol or vinegar if the dirt or smears are difficult to remove. Keep your fingers and any sharp objects away from the screen of an LCD computer monitor because the surface is softer than glass and can scratch. Glass computer monitors can be cleaned with a damp paper towel or cloth. You can use glass cleaners on glass screens, but never use anything stronger than alcohol or vinegar on an LCD screen. Also, never spray liquid directly on either type of monitor or monitor screen. Always spray it on the cloth.
Beyond this basic cleaning, there’s very little that’s necessary for you to do to keep your monitor in good working order. Basic repairs and maintenance don’t require much time or thought. If you experience problems with your monitor, you should never open the casing of the monitor to tinker inside. You can receive a dangerous electric shock by doing so. Repair of a monitor should always be done by a professional. But you can perform some basic troubleshooting checks to see if you need to consult a professional for repairs.
The first thing you should check with almost any problem with your computer monitor is to make sure that it’s plugged in and that the outlet is working. Then check the connection from the monitor to the computer itself. Make sure both connections are tight and that the connecting cable isn’t frayed or cracked. Sometimes a dark screen is simply because the contrast or color adjustments have accidentally changed. Check to see if changing these settings improves the color and contrast of your monitor.
If the monitor flickers or seems to catch and hang on images, you might want to make sure that your monitor is suitable for your computer system. Consult the instructions that came with the monitor to make sure the output matches the input signal of your computer system and that the signal timing matches the specifications of your monitor.
A flickering monitor can also be caused by other devices that emit an electromagnetic field. Devices with small motors or transformers, for instance, could cause an LCD computer monitor to flicker. Remove any nearby objects that could be emitting such a field. If you can’t find the cause yourself, you’ll need to have the monitor repaired.
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