When I turn my tv the picture looks more or less good but after a while the red comes on, and cannot adjust it. I tried to adjust the color but it doesn't work. I talk to a friend and he told me that it needed the part that adjust all the colors and picture. but I dont know exactly what part he was talking about, maybe you can help me.he sadi it goes in front you have to take off where the speakers go,
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The tubes have aged and the colour balance between the tubes has shifted. You will need to redo it using a black/white test image: first the black (the cutoff point), then the white (the gain) on each tube - always start with the green colour. This is done on the final video amplifier of each tube by adjusting the corresponding semiadjustable resistors.
Sounds like you have a convergence problem. If you go into the setup menu of your TV, there should be some settings to adjust the red, green and blue hues and re-position them so each color matches up. If this does not work or if you don't have a menu, your TV *might* have a circuit board with several plastic screws on it. These adjust the picture and it's a very tedious task to re-align each hue correctly.
My projection TV is an older model from 1995, which is probably why it has this circuit board in place of a convergence menu built into the TV.
If adjusting the convergence still doesn't work, you might need to purchase a new convergence chip.
You can try adjusting the color output. There are two ways to do this: 1) In the service menu (I don't know the codes or parameters...) I will not cover this for lack of info.
2) Via the focus block (Very touchy and difficult to get the mix right again if you get too far off)
If you take off the front cover there should be a access panel. Behind that, there should be a small square black box with 6 screws on it. This is the focus block. (At least this is where most of them are located)
It sounds more like you may need more red in the mix or just less blue and green. There is a screw for each color. Do not mess with the focus screws, just the ones labeled 'SCREEN.'
Barely turn the red up. Use an insulated screwdriver and DO NOT TOUCH the focus block and ESPECIALLY NOT the back of it. Very HIGH VOLTAGE. I found that out the hard way.
Do not turn andy of these up too high or damage may occur and the TV may detect a short and shut off.
I have found that if the three colors are adjusted in a dark room to where the 3 color spots (R/G/B) are just barely visible on the screen at equal levels, there is a pretty good color balance.
I had the same problem with my TV, but the hue was blue. I was told that not only did I have to replace the picture tube that wasn't staying on, but I would have to replace them all because they would not mix properly. After much investigation, I found that there is an adjustment for a variable power supply to each tube that can brighten and lighten each tube. I adjusted the RED pot and my picture color issue was resolved! To access this adjustment you must remove the front panel on the TV. At the bottom corners there are two small screw covers that you must remove. Then un-screw the screws under the covers. Then pull the front panel off of the TV, (it hooks under the top near the screen so it will swing out from the bottom). Now remove the wooden panel in the center, (four screws). The pot adjustments are at the bottom of the TV. They are marked for Red, Blue, and Green. They are extremely sensitive, don't turn them much! If you over adjust you will get red, green, or blue lines on your screen. Adjust back down to remove these, (this is also the remedy for removing these lines that can appear over time). Good Luck and God Bless!
http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html ·http://esupport.sony.com/perl/news-item.pl?news_id=24 ·Which models are affected with the "flicker" problem?
A1: There are 12 models in total: KDP57XBR2, KDP65XBR2, KP46WT500, KP51HW40, KP51WS500, KP57HW40, KP57WS500, KP57WV600, KP57WV700, KP65WS500, KP65WV600 and KP65WV700.
If you are using a HD cable box or satelite with component outputs, be sure that all 3 cables ( green, red, and blue ) are making good connection.A loss of red or blue will cause color shift. Usually,if the tv menu comes up as the correct color but the picture dose'nt, it is most likely a signal problem.