1, the TV is magnetized, if you find that the TV knowledge of a certain part of the green color, then you may want to try to remove the TV, demagnetization work. See if the green color block still exists. Generally next to the TV will accidentally put something with magnets, just move these things away.
2, the green problem, the green visual amplifier B-E inter-pole open grid contact short circuit, green voltage and so on may make the TV screen green.
3, the phenomenon of tube problems, video tube red and blue filament breaks, two **, as well as video tube use too long, aging, phosphor layer burned out, etc. will cause the problem of green TV.
How to solve the problem of green TV?
1, the connection between the graphics card and the monitor signal line contact is poor. You can unplug the VGA connector again when the computer is turned off, and double-check whether the pins are bent and deformed, and whether the signal line is broken.
2, if only a part of the screen, especially the four corners of the screen color, generally due to strong magnetic interference. At this point, you can check whether the display is surrounded by strong magnetic devices, such as speakers, high-power power transformers, etc., try to move away from these devices, such as color deviation is still not improved, then you need to consider the display to do the demagnetization process.
3, some monitors have a color temperature setting function, if set incorrectly will also cause color cast failure, but the actual performance of this color cast is full of the screen as a whole is biased towards a base color. This failure can be solved by re-adjusting the color temperature parameters correctly. If no matter how to adjust the color temperature parameters of the color deviation is still not better, the problem comes from the monitor's internal chromaticity output transistor is "soft breakdown", or bias potentiometer contact is poor. In this case, it is better to send the faulty monitor to the professional maintenance personnel to deal with.
4, if the other reasons, it is best to find qualified maintenance master to repair, mainly check the video board, picture tube, color decoding circuit, electron gun filament power supply and other issues to find the cause of green TV.
We probably understand why the TV becomes green after you can know the maintenance of the maintenance of the approximate content. Generally speaking, if the magnetization of the problem as long as the demagnetization can be, demagnetization can be usually within the TV already has a demagnetization function demagnetization; can also be turned off, wait 15 minutes and then turn on the power, and then turn off the power, and so on for about 3 times on the basic demagnetization. Of course, the premise is to influence the TV set to be magnetized items away from the TV set, especially the speaker, magnetized cup.
How to demagnetize a TV?
1, first of all, to see if there are some magnetic appliances on the side of the TV is too close, such as refrigerators, refrigerator door seals have a relatively strong magnetism, will make your TV screen magnetization. If there is indeed a magnetic item on the side of the total power off, not with the remote control shutdown, 30 minutes after the boot.
2, the surrounding things that are considered magnetic, move away from 2 meters away.
3, boot with a magnet to the screen demagnetization.
4, with a demagnetizer, the general electronic components store are sold, not too expensive.
5, and then can not be solved, is the TV inside the demagnetization resistance is bad, need to be replaced.
How to adjust the TV screen color green?
1, adjust the image contrast: too strong contrast will make the image level reduction, appear hard, lose many image details, and will occur with the phenomenon of sound interference with the image. Contrast is adjusted too low, will also make the image level is reduced, it looks very difficult, so you need to correctly use the contrast knob, adjust the six gray levels that can be clearly distinguished, so that the leftmost level just not bright, and the last level of brightness is appropriate. When you turn off the color saturation knob, because there are different signal levels in color, you should be able to clearly distinguish their levels;
2, adjust the brightness and color: Adjust the brightness knob of the color TV set, so that the brightness is appropriate, not too bright to the eyes, nor adjusted too dark, should be a long time to watch TV when the eyes are not fatigued as well. Then turn off the color saturation, so that the image without color, black and white. Color TV sets with a tone knob, you need to adjust the tone knob to the minimum;
3, adjust the level of clarity: contrast in certain conditions can represent the strength of the picture tube signal. Contrast is well tuned, indicating that the signal strength added to the picture tube is appropriate, at this time you can adjust the level of clarity. In adjusting the tuner knob or channel fine-tuning knob, you should carefully observe the horizontal clarity pattern in the test chart, as far as possible to make the fine vertical lines are clearly distinguishable, and there is no edging and trailing. It is also required that the accompanying sound is good and does not interfere with the picture. In the color TV test chart, the position of the densest lines can be distinguished the more to the right the better, it indicates that the level of clarity of the TV set is higher;
4, adjust the color saturation: color saturation adjustment, first of all, the color saturation knob rotated to the smallest position, and then according to the TV viewer's own preferences for adjusting the color shades. The color is too thick will lack of realism, too light will lose the meaning of color. A more appropriate standard is: the skin color of the characters in the image, especially the color of the hands and face, to be close to the color of ordinary people, that is, the color saturation knob is adjusted to make the color of skin color close to the skin color of normal people can be. In addition, when adjusting the color, you can properly adjust the frequency fine-tuning knob.
TV screen color green related keywords: computer screen color adjusted back to normal, TV all screen color green, TV screen throughout the green, TV screen after changing the screen color becomes darker, TV screen color is not right what problem, the screen freezes the color change, TV color problem how to do,
Service plate: Beijing, Tianjin, Guangzhou, Shanghai, Chongqing, Hefei, Anqing