My tv screen has changed from full to wide screen. The words on the screen are fading off on the side. It has never done this. I have had this tv since 2002. I have been trying to find information about this, nothing is on the internet.
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If its only the wide of the screen the problem is with the horizontal transistor near of the flyback, you can also probe the capacitors near, if the problem continues try to change or reconfigurate the EEPROM
I had a television that went to a bright shade of blue.A friends neighbor worked for sony television plant where the new tubes came down the assembly line.His job was to make sure tubes were working fine,if one color was dominant then his job was to smack the front center of the tube with a rubber mallot to fix the problem.He suggested i try that with my tube while the set was on.It worked and solved my blue problem.Apparently he explained,the gun connections in the tube came loose and to fix it was to smack it this caused the connection to reweld itself.For you I would use the palm of an open hand and smack the tube dead center with a good hard smack.Dont be afraid of breaking the glass because its very thick and strong.Give this a try.Hope it helps.Good luck!
This sounds to me like the parameters are off, I recomend only a service tech adjust this for you because the parameters can only be accessed by a service man, and they are critical, if done wrong the whole set can go out of wack.