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Sylvania tv model sst4272 no vertical

My tv has no vertical, only a line going horizontally accross the center of the screen. I am looking for a schematic to determine which part has gone bad

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The LA78041 IC has failed. I replaced it twice before I cleaned the high voltage connection to the CRT. It was very cruddy from cigarette smoke. A high voltage discharge to the yoke takes out this IC. They are available for under $4.00 Good luck.
from Lincoln Hubbard at lwhubbard@cox.net

Posted on Mar 26, 2009

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I have an older Panasonic 26 inch tv the screen was a bit warped at the top off and on then the picture shrank to a bright horizontal line then went black the sound remains.


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Vertical line down the center, sound OK.


This is the deal. Your picture tube is going out. How thick is the line. As it gets wider that will tell you how much more time you have. Was the TV dropped? There is a way to adjust this but you have to get into the back of the TV and if the static discharge is not done properly it will kill you. Don't mess with it. It is now cheaper to buy another TV on craigslist or your local paper than trying to repair it. Hope this helps.
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Sep 25, 2009 | Televison & Video

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I have a 6month old Samsung 42inch Plasma T.V. Suddenly a black horizontal line has appeared right accross the screen. Any suggestions please?


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Aug 24, 2009 | Televison & Video

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Jul 19, 2009 | Televison & Video

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Tv set picture is gone


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Jan 27, 2009 | Televison & Video

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Picture size


Hello! You need to put your tv into service mode and adjust the horizontal and vertical size. You can find info on how to enter the service mode for some brands at epanorama.net. Good luck.

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Oct 10, 2008 | Televison & Video

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