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Blurry,fuzzy picture with one green vertical line and one red vertical line in the middle of the picture When ever there are numbers or letters in the picture there are two of each number or letter, one red and one green.
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red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..
My RCA 52 rear projection TV has the letters getting blurry on top and bottom, Picture is OK but visually losing my eyesight staring at blurry numbers and letters.
Fuzzy is a funny word. I never use it to describe a picture problem. That because fuzzy can go too many different ways. There is snowy fuzzy, blurry fuzzy, grainy fuzzy, and demodulated fuzzy. If the set goes out of focus intermittently that has something to do with the focus ciruitry. If it goes grainy that is a front end problem, usually tuner related. The other types of fuzzy are generally associated with problems in video processing some where. So, which is it?
Oh, and BTW that unit has three small picture tubes in it, one red, one blue, and one green. It doesn't have a 'bulb'.
sounds like youre describing a convergence problem. Do the letters look like theyre 3D? If so you will need to replace both Convergence ICs STK392-120 you can get replacements at the following link and they include installation instructions with pictures plus gree tech support. heres the link. http://servicemanuals.vstore.ca/
First, this assumes nothing else is going on to cause it. Here's what I did. Go to the 'green grid' via the v76 menu and go through the alignment there. Notice that there are red letters, blue letters, and a green grid. While you are in this screen, adjust the red, green, and blue focus watching the individual color's item until they are in focus. If they won't focus here, they won't focus and you have something else wrong (what I do not know). Then, return to normal programming, then select menu on the remote, then screen, then adjust projection tv convergence both horizontal and vertical crosshare. That ought to get it.
you have a shorted green CRT that is affecting the other crts the short is internat to the crt that leaves what is called retrace lines. if the set is more than three years old then replace all three guns.
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