Why is my display multiple colours?

Question

WHY HAS MY MONITOR DEVELOPED THE FOLLOWING COLOUR PROBLEM, AND WHAT IS THE SOLUTION

E.G IN DESK TOP - ICON COLOURS HAVE DEVIATED FROM BLUE AS FOLLOWS;-

BOTTOM LEFT > BLUISH PURPLE

TOP LEFT > RED

TOP RIGHT > BROWN

BOTTOM RIGHT >GREEN

THE DESK TOP BLUE BACKGROUND HAS BEOME TECHNICOLOURED

ANY SUGGESTIONS WILL BE APPRECIATED.

THANK YOU

Answer

This question was answered on January 30, 2003. Much of the information contained herein may have changed since posting.

Problems like this are usually associated with the monitor itself.

I have to wonder if the unit has been placed in the proximity of a strong magnet, perhaps a motor, like a desk fan, or one of those plug-in power supplies that come with many printers or other add-on devices.

Often, using the degauss function on the monitor can restore the display, once the source of magnetism has been removed Many monitors must be running for a while before or after the degauss button will function, this, you cannot degauss the monitor multiple times in rapid succession However, multiple degauss sessions may be just what are required to restore the display.

Most monitors will automatically degauss each time the unit is turned on If the degauss operation performed using the button on the display does not do the job entirely, the condition will often continue to improve over time.

Be certain any source of magnetism is removed from the area prior to trying to degauss the monitor, and never discount the possibility of playful children with magnets who might be fascinated by the effect the items have on the display.

Sometimes, a monitor that has been dropped or damaged can cause color impurities If this is the case, replacement, or possibly servicing, is the only worthwhile option.

Never take apart a monitor Lethal voltages may be present within the case, and can linger long after the unit has been powered down.

RG

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Author

Posted by Robert of Mesa Community College on January 30, 2003