The color on my tv is turning green. It's not totally green but it's becoming green. No matter how I adjust the colors it remains the same with too much green. You can't see the true colors clearly especially white. The picture in general is darkened a little bit.

If the problem is same with different input devices and you have ensured there are no loose contacts in power outlet, RC jack, cable and sockets, the TV needs servicing.

try power cycle.

since every display color monitors are only work with 3 primary color which are red, blue and yellow. You could also search it that by mixing these colors, you could get any color your want. Thats how color monitors work. Now in case of green color, it creates by mixing blue and yellow. When you are turning the screen adjustment screw, the red color plug will become lose, makes it appear green.
I hope your got the reason.

How to Fix a TV When the Screen Is Green


A TV is calibrated by the factory to provide a "standard" picture that attempts to appeal to the vast number of buyers who take the set home. To adjust a TV picture that is too green, you must first enter the hidden "service menu" that technicians use. Adjusting the colors to remove the green cast will save you the cost that would otherwise be incurred from a TV technician coming to your home. No special tools are needed, nor any expertise in how the TV works.

Press the power button on the remote of a TV whose picture is too green in order to turn it on.

Press and hold down the "Menu" key until the manufacturer's logo appears on the screen. This could take up to a minute or more. Release the "Menu" key when the logo appears.

Immediately press the "9," "8," "7" and "6" keys in this order. Press the "Enter" button on the remote to enter the "Service Menu" screen.

Press the "Menu" button to go to the second of the two "Service Menu" screens. Press down on the "Down" arrow until you highlight "Color Calibration." Press the "Enter" button to enter the "Color Calibration" screen.

Select one of the color bars on the screen. Adjust the color by changing the values of the color bar by pressing left and right on the "left" and "right" arrows on the remote. Repeat this procedure with the other color bars as well. Stop adjusting the colors when the green cast is no longer present.

Press and hold the "Power" button on the remote to exit the "Service Menu" and save the adjustments you have made. Turn the TV off.

you must re-adjust in the RGB (Red-Green-Blue) setting. depending on the brand of your TV, because there are set manually from the TV (you must open the cover of the rear of the TV). and there is a set directly from the remote only, with the open "factory settings", then you can re-adjust RGB color, especially green, not too dominant with the other colors (RED-BLUE). how to set is that you need to neutralize the color, (color TV sets to zero level) so that the image becomes black and white. if the green is too dominant, then Decrease the level of Green Bias or Green Cut off/ G-drive.

Red, green, or blue retrace lines ( a quote from "Notes on the Troubleshooting and Repair of Television Sets", found at http://www.repairfaq.org/sam/tvfaq.htm#tvrgbrlin )

Where only one color is showing, suspect an incorrectly adjusted individual background/bias control or bad part on the CRT neck board for that color.

• Individual brightness/background/bias control(s) - mark setting of pot for the problem color and then see if a slight adjustment removes the retrace lines. See the chapter: "TV Adjustments". Of course, if this happened suddenly, the problem is not due to a misadjusted control though a dirty pot is possible - turn it back and forth - this might clean it and restore normal operation.
  
• Component or connection on CRT neck board - insufficient voltage to or incorrect biasing of the video driver for this color can result in the CRT never totally blanking. Compare voltages and signals, and swap components between good and bad channels to confirm.
  
• Blanking circuit - this may be a part of the video/chroma chip or separate. Check and compare waveforms of good and bad colors to determine if the blanking pulses are making it to the video output.

There is a slight possibility that a bad CRT may result in visible retrace lines. To eliminate this possibility:

• Disconnect the filament - all evidence of a picture, raster, and retrace lines should disappear once the filaments/cathodes have cooled (15 seconds or so. If there are still visible retrace lines, the CRT is suffering from cold or field emission from someplace (may not even be the cathode).
  
• Turn down the screen (G2) control on the flyback (usually). If one color remains no matter how you set the control, again there is some kind of weird emission from the CRT. However, if white/gray retrace lines remain, the problem may be in the screen supply.

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You will be greatly helped if you have a schematic for your TV set, and you may need to change some parts, clean some connector contacts and/or tweak settings inside the set, so remember the original settings before you tweak them...

Good luck

3rq8 (Triarcuate)

the main total assy might be the problem. it controls color, pix size and such.

you need to adjust the screen voltage. behind the front grille and inside cover. a small black box 6 adjusters protruding from it. only adjust the the color counterclockwise that matches the problem in this case it's the green so look for the knob with "G" marked by it. there are 2 with "g" marked by them the row across the top of the box are for focus don't adjust. back the knob off untill the raster is blank with your input set to an inactive input, the picture should be blank and black.
when it is you have the adjuster close to where it should be, now change the input to an active signal and turn the color off so that you wil have black and white picture. adjust that knob untill you do have a truely black and white picture not too green or red or blue. go back to inactive video input and check that there are no lines of any color on the screen. repeat if needed. always adjust these knobs slowly the set will be watching you ! if your autofocus won't work now you have the adjustment set too low. check this function before putting back together again. these adjustments can be real touchy so be patient

There are a few possible causes for this

-Picture tube has become weak after long useage
-A fault with the automatic degauss circuit could be causing the color problems.
-The color drive circuits may be out of adjustment.

I don't have instructions for you on how to fix this, I would recommend you either buy premium assistance or contact
another expert with long tv experience to possibly get details
on how to correct this problem.

I would recommend you contact your dealer for repairs if you have warranty. If you don't have warranty it may be cheaper to ask around.

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