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Re: 42" LG plasma
It sounds like a bad panel, which is not what you want to hear. Replacing the panel on a Plasma TV usually costs more than just replacing the TV. However a bad panel causes vertical lines exactly as you describe.
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do you still have a complete picture ?,are the lines coloured,?
do the lines go from left to right or do they spread out from the blank spot in a circular direction like the suns rays?
from your description above i am sure you are describing a broken lcd screen,if i am right there is no repair feasible for this set..
IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........
ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER
Capacitors on Y-Axis board beginning to fail. Soon the bars will be permanent - get the tv fixed before they are burned into the screen. Repair is under $200USD (mostly labor)
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Two causes for this failure.
1. The Y SCAN board or YSUS board failure. Your can replace the failed boards with reasonable price.
2. The PDP Panel failure. Very expensive to fix this failure.
If the Video (Picture/Pix) is gone but you can hear the Audio (sound), then it could mean the YSUS PCB Assembly is gone/kaput/finish. Can replace the PCB, not repair the PCB due to timing circuitry involve. Cost maybe roughly $500 depending where you located. The PCB is located on the left hand side of your TV when you are facing the back (Back open). Might find 3-4 brown flex membrane connecting to the plasma panel. The PCB has a silver or black aluminum heatsink (big) on it. Good Luck.
check all inputs on tv ,also check if menu on tv is working ,make sure lines arent being produce by another source, cable box etcc..If menu and or OSD are affected .Then there is a good chance you have lightning damaged some where in signal section on tv .
Could be a component inside is going bad which mean it'll die soon. (it just trying to tell you to save $ for a new TV)
Or wire is lose somewhere. (My work pc, I touches the monitor cable and sometimes it switchs color like you described)
how much is a new panel for an LG 40" plasma?Where can i get one?
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