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Posted on Jan 02, 2017
SOURCE: 40 inch lcd blue line vertical
The display screen is made of a matrix of elements connected to cables
along the side and top. On your unit, some of these many, tiny
connections are making contact intermittantly thus losing the elements
in that area. These contacts are held in place with just pressure and
if that is disturbed, you lose that line of elements. Try squeezing the
cabinet of the TV on the outside at the top in the area of the loss and
see if that makes a difference. May have to go inside and see if the
contact assembly is disturbed or warped or something.
Hope ya fix it!
Posted on Jan 06, 2008
Hi, Depeending on the thickness of the lines matters. If the lines are Black and about 1-2 inches thick it may be a bad bottom buffer board or a bad panel (screen).
If the lines are thin 1/16 to 1/8 inch it is most likely a bad panel.
You can open up the set and depending on the model, see the thin board/boards running across the bottom with ribbon cables going to the panel. You may be able to attempt reseating the ribbon cables, but be careful as some retainer plugs break very easy.
If the lines are thick black and the reseating doesn't correct it you may be able to buy the coresponding buffer. Unfortunately some bottom buffers are actually part of the panel. If you are not comfortable taking it apart then call a professional but be aware labor charges start around $200 not counting parts, panels start at $600 up to over $1000
hope this helps
Posted on Aug 19, 2009
That problem caused by a connection between LCD crystal and matrix driver,no tools yet to reconnect that metal to crystal connector,Claim warranty right away that will multiply or became larger.
Posted on Aug 30, 2009
What you're describing is usually the result of an improperly seated connector. With the power disconnected, open the tv and locate any connectors between the LCD screen and the driver circuit board. Unplug them, and reconnect it assuring it's properly and firmly seated. Be careful when handling these cables as they tend to be quite fragile... take your time.
Posted on Nov 28, 2009
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