Question about LG 42PX5D 42 in. Plasma HDTV
This can be a bad ribbon cable, data loss in the video processor, and X - Y addressing fault in the address processing area.
The fix is to locate the defective boards and change them. '
Posted on May 15, 2008
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Posted on Jan 02, 2017
SOURCE: plasma TV with vertical lines
Help! My Plasma by Magnavox is putting black verticle lines on the right side of the screen - comes and goes - and I replaced the entire Direct TV-HD unit - wires, everything - and had TV company repair - and it still came back. The TV repair refuses to take TV back because it does not show up when they come. Although I videotaped it and showed them which has the date and time - they still refused to take it - and tried to get me to sign a paper saying it was working while they were there - which of course I refused to sign - so they left and nastily said they will not be back-find someone else. I still have the lines - and do not know what to do! Can anyone help?
Posted on Aug 21, 2008
SOURCE: Black line on Panasonic Plasma
All lasma an lcd ts have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times reseating the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken if you decide to tinker with em, the usually have lift locks that release them, but it is very easy to wreck em. Good luck.
Posted on Dec 11, 2008
SOURCE: solid black vertical line
You could have one of three problems. One is really expensive to fix and you might want to trash the set. Thats if the panel is bad. Secondly, it could be a buffer board that went bad. Not as expensive as the panel. Finally, it could be the connection between the two. I would first take the back off and locate this board. Undo the ribbon cable and clean it off a bit and put it back. If its still there, you have a deeper problem.
The buffer boards are located across the bottow when you take the back off. About 3 inches wide. Sometimes they are on the top as well.
Posted on Dec 06, 2009
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