Question about LG Televison & Video
Change power outlet see if goes away and check connections possible feed back from source if all ok possible bad video board
Posted on Jan 24, 2020
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Posted on Jan 02, 2017
SOURCE: shimmer and bands
i experienced a tainted vertical black lines on the boths sides of my lcd screen. There was no scratch or whatsoever that could be the reason why thsi balck colored vertical lines to spread. Hope you can help me solve this problem. Thank you..
Posted on Oct 28, 2008
there are two convergnece boards in this tv. one is called the convergence (DCU) the other is called the convergence amp board. this amp board has the (STK`S) on it and ids your problem. in most cases we repair this board.
good luck :)
let me know if you need more info?
Posted on Jan 11, 2009
If what you are trying to say is that you have a 1/4 inch horizontal line across your screen, this means that something in your vertical deflection circuit has failed. This could be the vertical oscillator, the vertical output processor, the vertical coupling capacitor, or the vertical section of the yoke transformer.
If what you are talking about is a vertical line from top to bottom then you are possibly talking about a failed horizontal section of the yoke transformer.
Why so little about the horizontal section of the yoke? That is because if the horizontal section fails completely then you would lose high voltage and no line would be present because you would not have raster (screen light).
In any even check the yoke transformer first. Then work back from there.
I hope this helps,
Posted on Feb 08, 2009
You probably have a bad compressor. It's internal parts are held up with 4 springs and one of them has probably broken and causes the compressor piston to hit the side of the comp. housing. This will happen when the ref. shuts off. To be sure, if you turn the ref off at the controls then you should hear the noise in the back. If it is less than 5 years old you can get it replaced under warranty. if more than 5 years old it will just be noisy. it will most likely last several more years like it is. Let me know if I'm right.
Posted on Apr 01, 2009
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