Question about Zenith C27A24T 27" TV
I have a 27in Zenith, has always been a good tv my problem now is that there is about a 2in black space on the top and it seem like the picture that should be there is reflected down and makes the top appear backwards. If that makes any sense. It looks lighter and if there are words they are backwards.
I took the back cover out and cleaned it, tons of dust made no difference. But as I was dusting and wiping I moved some adjustments in front of the tube. There are 6 of them and they rotate around, seems to be color-tint-up-down.
Now I have created another problem, when I use the guide the words are blurry and try as I may I can not get it just right again. Other than that the picture looks right.
Your TV is showing signs of age. It's displaying something called "vertical foldover" which is due to capacitors in the set's vertical output section that need to be replaced. These failed parts can stress the vertical output integrated circuit, and if that goes bad your picture will collapse to a thin horizontal line. The capacitors themselves (usually 3 or 4 need to be replaced) are pretty cheap. A TV shop in your area (if there are any still around!) could fix it and the repair should be under $100.
By moving those rings on the tube's neck (which is actually the back) you have messed up the set's convergence. Those rings are magnets which adjust the electron beams in the tube so the red, green and blue images line up correctly on the tube face. The rings are often marked with a stripe after adjustment to show how they were lined up. Look carefully at them and see if there are any marks you can go by to reset them. To properly converge the set some equipment is needed to generate the adjustment test pattern. Again, a shop could do it for you.
All things considered, at this point you might seriously consider replacing the set. Not because the troubles aren't fixable, but because other parts can start failing because of age, and by now your picture tube is on borrowed time as well.
Posted on Apr 22, 2009
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Posted on Jan 02, 2017
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