Question about Samsung PN50A550 50 in. Plasma TV
A thin black horizontal line is showing on all channels, how do I fix this?
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Posted on Jan 02, 2017
The set is under a year old and is under warranty. The LVDS cable inside these sets have a history of coming loose. The problem could be the panel. Either way, the set is the problem and needs to be looked at. This set is worked on in the home and does not need to be taken to a shop, so, you can still use it. Contact Samsung at: 1-800-SAMSUNG Hope this helps.
Posted on Jun 03, 2007
All plasma an lcd TV 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 resetting 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.
Posted on Aug 11, 2010
ON THE EXTREME LEFT SIDE OF YOUR TV FACING BACK OF TV WITH COVER OFF THERE ARE TWO BUFFER BOARDS UPPER AND LOWER WITH WITH MANY FLEX CONNECTERS CLEAN THESE CONNECTERS WITH CONTACT CLEANER UNPLUG FLEX CONNECTER BEFORE CLEANING CONNECTER ONLY DISCONNECT CONNECTERS THAT ARE ADJESCENT TO HORIZONTALE LINES THESE CONNECTERS ARE NOT EASY TO DISCONNECT AND RECONNECT IF THIS DOES NOT SOLVE PROBLEM PANEL IS DEFECTIVE
Posted on Feb 28, 2011
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