The green color seems to be dominating all images. Sometime the picture looks okay, but its not just the input from the cable it also is on my dvd player. I have opened the tv and all lights are on red blue and green, and there are three bulbs in the bottom that are on as well. I have tried auto covergence but still is not working properly.
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Re: Greenish tint to picture
There may be a green tube issue or there could be a screen voltage or screen control adjustment issue. There is a control block with six adjustment screw inside the front panel in front of tv. WARNING high voltage exsit in this set and adjusting these controls really should only be done by a tech,....So be careful
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If the green is all dominating then it is the red or yellow that is missing in the spectrum. The likely problem is that one of your color guns has burned out. good news is they can be replaced but you have to determine if you have three individual color guns, or one that projects all three colors. (don't skip the easy analysis first though) Check your cables to make sure they are not worn, cut, nicked and most certainly check to see that they are plugged all the way in. Try jiggling the red and yellow inputs while someone watches the screen to see if it flickers. If it does you could just need a new cable. Swapping it out with a known working cable also will work for testing.
I had a similar problem with my tv. Sometimes it depends where the tv is located, have you moved it? Magnesium in the earth caused my tv to have greanish tints in all four corners of my tv. Try moving your tv forward, backwards, or side to side. Let me know if this works.
Change the coolant in the CRTs. The blue and green get contaminated and cause the red to become dominate. You can verify this by looking into the lenses of the CRts with a flashlight and you will notice what looks like bacteria in the lenses indicating that the Coolant needs replacement. You can then get the CRT coolant kit at www.tvrepairworld.com which has the coolant and the CD with instructions for Phillips Tvs.
well it seems you have an issue with one of your video boards, it could be that the Analog Video Board (the one with the inputs and outputs) is partially damaged, but it can also be your Digital Video Board, which is the one that projects the image
The only time I have had issues like this was because of the Component Cables not being in the right position (the Red and Blue connections switched), or a bad Component Cable where the Blue Connection is not receiving a signal. Swap out the cable to be sure and double check that it is properly installed. Green to Green, Red to Red , Blue to Blue.
Hope this helps,
Have you tried more than 1 source? If this only happens with 1 source- if you're using component cables (green, blue, red) then make sure there is nothing wrong with it. Another thing that can cause this, is a component (RGB) device being plugged into a composite a/v input (yellow white and red).
If this fails, or if the problem is with all sources, the TV is the problem and probably won't be easy to diagnose or repair yourself.. I'd call the manufacturer if this is the case.
Solution for the Hitachi 50V715. I contacted Hitachi and they told me there is a problem with the color engine with this and other Hitachi models. They will replace the part for free, but first I need to take it to a repair shop to verify the problem and I have to pay labor. Not too bad considering the cost of the engine.
There is a crt drive problem and you can isolate it by unpluggin g the set, removing the green crt socket, in the middle of the three tubes is the green tube by the way, remove one of the other tubes and switching the crt sockets and turn it on. If the set is still greenish, then the green crt is bad and needs replacement, if another color is primart, then it is going to be the green crt drive circuit and is going to need to be serviced. Good Luck