Why is the color computer monitor all of a sudden become normal by the light purple, about two continued …

Why is the color computer monitor all of a sudden become normal by the light purple, approximately 23 seconds after returning to normal, what is the reason for it? Problem serious? Should be how should we do?

often if that does not work to display, by chance, you are under investigation around the display has a magnet and so on.is not Plug and Play monitor, to pull out a Zaicha, Instability if the rope or plastic stuck on the side of OK.If it is occasional, not have to worry about.
May be affected by the magnetic field caused by interference, degaussing can be.This should be the display problem, you have a phone Electrical appliances such as television or the computer next to the right place for
it is not a stand-by on or off the keys? Back of the console display to pull the plug to see if there is no bending of the needle.Inserted in the tight and see.There are If the problem is the issue of display or interfere with the magnetic field on the edge of the display are such problems, may be the three primary colors (R, G, B) not the same signal strength.If the video does not signal strength, on color cast possible.For example, , Red (R) video signal strength enough, the blue-image; green (G) video signal strength enough, the image will be a partial purple; blue (B) video signal strength enough, the yellow-image.Because in the three Primary colors, the relatively large percentage of green, so green display in charge of the electron gun is easier on aging, which is used in some of the old display for a long time, the color purple.If there is a particular color channel circuit soft Failure would cause the same color cast.Color cast caused by the third reason is no secret to balance a good tune.Bright and dark balance constitutes white balance.In contrast and brightness in the dark, adjust the internal parameters so that the CRT brightness grating R, G, B color at the same time three or disappeared at the same time, if not black, raster background brightness of color cast will, therefore, resulting in image color cast.If the circuit because of the problem, but also to repair, but if it is dark because the balance Color cast caused by the display, as use of professional equipment, including a number of individual maintenance departments will be very difficult to fit the tune.
It is also possible that it is more depressing, Oh, you can get.That is, display signal The trapezoid lane of a joint-pin bends, graphics and sound did not touch the pin Flanagan get the OK on the straight.