Question about Emerson EWF2703 27" TV
Most likely this is a case of bad solder connections to the TV's vertical output integrated circuit (IC). This part gets pretty hot while operating, and it's very common for the connections on the circuit board to get flaky from the heating and cooling cycles. A few minutes with a soldering iron by someone who's done electronic soldering is usually all it takes.
It's also possible the output IC has failed, but the bad connections are far more common. I have no idea what a service shop in your area would charge to make the repair if you don't feel you can handle it, but it would certainly be less than the cost of a replacement TV.
Don't continue using the set with this loss of vertical output. The picture tube phosphor surface can be burned by the narrow bright line, and leave a dark line in the picture after the set is repaired. There is no way to repair that other than replacing the tube, and that WOULD be more expensive than a new TV.
Posted on Mar 25, 2009
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Posted on Jan 02, 2017
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