When I turn on my TV now I have a black line down the middle about 4" wide. The left part of the picture is on the right and the right is on the left. TV is just over 2 years old. HELP
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There is no invertor board on a plasma tv. The fault is the X address buffer board. This is located on the bottom of the screen and runs horizontally the whole width of the screen. If you remove the heatsink plate that covers the x address boards and you need to look at the screen ribbon at the same position as where the bar is (in the middle).Vary gently lift the Xbuffer ribbon lock and gently take out the ribbon.Clean the contacts very carefully with a fibre pen or an electrical cleaning fluid.Insert ribbon back and heatsink and check.Here is a picture of the board and ribbon
a 1 inch bar is associates with 1 ribbon fault. So if the bar was 3 inches in from the left of the screen, the faulty ribbon will be 3 inches in from the right working from behind the TV. If cleaning dont cure the fault, then the Buffer IC will be blown and order a new centre buffer board (you can buy off Ebay)
Your screen is showing a black picture because the closed caption function has been activated. When this closed caption mode is turned on the screen will display an 80% black picture.
To turn off the closed caption and regain a full screen please follow these steps;
1) Press the Menu button
2) Use the up and down arrows to navigate to Closed Caption
3)Use the right or left arrows to select it.
4) Use the right or left arrows to select OFF
5)Use the up or down arrows to select Finish
6) Use the right or left arrows to save the settings and exit.
You should have your full screen back now minus the annoying black box.
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Our 42" LG picture is also split down the middle. It doesn't matter if it is cable or a DVD. I would love to know if anyone has found out the solution to this prob. The TV is only 3 years old...
Most likely will get worse as you are describing a failing control bd. The part # is 6871QCH038A and is a fairly complicated repair. A good deal of disassembly required, and I would take advantage of your service agreement.
It sounds as you desribe, the vertical output IC and or the b+ feed capacitor off the Hi voltage transformer feeding the vert. IC its required voltage. Not a really hard job to replace, but not for a handi person to do. This should be left to the professional, as there are no user serviceable parts inside this set and with the HI voltage and the safety issues its best to call somesone to assist you with this repair. Good Luck
black line in the middle
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