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What causes vertical colored lines on a TV screen? When a TV is showing vertical colored lines, a loose wire cable in the TV might be the cause. If you knock on the back of the TV, the vertical colored lines MAY disappear temporarily. This is a sign that a cable is loose or the T-Con board is faulty.
Go to the last page of troubleshooting in the manual and perform the system reset procedure. Basically hold the Wega "arrow up" as you manually switch the TV off. It will automatically switch back on and reset. I had only vertical colored lines on the screen, with audio but no response to any remote control functions. The rest worked perfectly.
It is called "Thin vertical lines" and change colors depending on the background color. It is fixable but there are several components that can show this sympton.
You will need a tech to fix it in order to save money (because you do not want to buy a board you dont know if will fix it). Possible Solutions: Replace Timer Control Board, if it is not fixed Replace Sustain Board.
One of those boards needs to be replaced and I wrote the most likely first.
vertical output ic needs to be resoldered. careful leaving that bright line displayed on the screen as this will cause a permanent phosphor burn into the tube. this can not be corrected once burned unless you replace the tube. mch
This sounds like one of the driver boards at the bottom or top of the screen has an intermittent fault. The set will have to be taken in to a service centre.
We also have vertical lines with our JVC 62"... turning it off and letting it cool down is the only solution. For us, we know it's a problem with heat. We simply are wits end on fixing it. added two additional fans, a exterior fan to blow heat away from the back of the tv, pulled everything else away, etc.... Anyway, goodluck.
Take your set to a qualified tech you have a bad vertical ic or some cap around the vertical section is not filtering the voltage properly and your deflection yoke could also be bad.good luck.
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