Picture color - it is a blue and green picture- no other color- looks artificial
This happened once before - that the color of the picture was just blue and green - I did everything as per the manual changing the settings of color/contrast/brightness etc. Nothing worked. Finally I saw that at the end of the manual it was indicated that you could turn the TV off from the power socket and leave it off for half an hour. I left it disconnected for about an hour and things started to work. Now once again (2 months later), the picture color is blue/green only - and I disconnected the TV from the power socket and from the cable connection for a whole night - and the picture color is still the same artificial blue/green tones. Did everything as per the manual. No change. Any help/advice is welcome. TV is only 3 years old.
Many thanks everyone.
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I am afraid your problem is a little technical. Well if you know something about lcd tv technicals, the problem seems to be the T Con board and/or its connectors. Check the ribbon cables and connectors, clean them properly and and start the tv.If it is not possible or it does not work, please consult someone qualified to handle your set. Good luck.
The color of the television are compose of three color RED,GREEN and BLUE.So the lost color is the green.The problem is in the color section of the CRT board in the chroma section and in the CRT socket board.Maybe theres a loose connection in the PCB like the cathode output transistor.
hi" do you try to adjust color settings.theres a red,blue,green color adjustment under picture setting.
try to set red color to full. of you already do that. probably your display driver board has a causes the problem. display driver board produce image comes from the tuner, then it sent to x and y drive of your LCD screen.
It sounds like the set has become magnetized. It could possibly be from an external speaker magnet or some other magnetic field (ie. a vacuum motor). It could also be a malfunction in the built in demagnetizer circuit. Color picture tubes are very sensitive to magnetism. Because of this there is a built in demagnetizer circuit. If this circuit malfunctions it can cause the same problem. Turn the set off and unplug it for 30 minutes or so. This will allow the circuit to cool off and reset. Turn the set back on and see if it returns to normal. Also, dropping the set or a heavy jar can warp the shadow mask inside the tube causing the same problem. If the unplugging method does not work, have a shop check it for you. Thanks for using fixya.
If you are running component video, make sure the blue is plugged in and in the right spot. Component video works like this: the green is a black and white image, the red and blue are cover overlays to make the image display properly. So if everything looks plugged in right, then try plugging in a composite video (Yellow) or S-video cable switching to the appropriate input, and see if the image is still red. If so, go to the set up and set the set to factory defaults, and see if that fixes the color issue, It's possible that the color settings on the TV are messed up, with the S-video plugged in go through the set up menu and see if you can correct the color issue IF THE IMAGE IS STILL RED WITH THE S-VIDEO OR COMPOSITE VIDEO, otherwise the issue is a problem with the component video cable.
Your described problem is as you suspected, the green is missing. This is a common failure and is technically an easy/quick repair. Almost always, the culprit would be a cold solder or a faulty color drive transistor/IC. They would be located on the small squarish PCB (printed circuit board) at the very rear of the tube. Of course, worst case scenario would be a faulty CRT (picture tube), but that would be least likely.
Corrective measure would then be initially re-soldering above describe solder joints and/or replacing faulty transistor/IC.
You are missing either red drive signal to CRT or you have a cold / fractured solder joint on the television. Also with the set unplugged check with a non metalic object like a ruler or a wooden spoon and start tapping around in the front or back of set and see what happens. See if you can narrow which area of the set has a problem... Good luck future technician.. Happy holidays.. Jay
You need to set your convergence. Check your owner's manual on how to do it. I'm not sure the exact procedure on that model, but usually you can find it in the setup menu of the tv. What you're trying to do is line the red and the blue up perfectly with the green so that they all blend together to give you one picture.