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Thin vertical red line on my LG 50PC56

I have just noticed a very thin vertical red line (much less than 1'' that some people are reporting) appearing on my LG 50PC56 plasma TV. It is only showing on some shades of blue at the moment. Is this a control board problem? The TV is about 30 months old so out of waranty.

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First you must clean connector contacts between plasma module and driver boards, if not solve the problem and continuing increment of wide red line, may be you must change plasma module to solve this problem,

Posted on May 28, 2010

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When you see these thin lines they are caused by a few things. None of which are good.

On smaller tv's the lines can be cause by the contacts coming loose after being bumped. These can be either the contacts with the small ribbon cables or the contacts inside the actual lcd display. The connectors can be reinserted and sometimes that is all it takes. Generally the lcd panel can only be fixed by replacement.

The other thing that causes this are problems with ram/memory or timing issues. Either of those will require the board to be replaced. If the line is on all channels it is usually ram, if it showed only on the odd channel (when you first noticed it) then it is probably timing. Either of these issues require the mainboard to be replaced which is not cheap to do.

Unless you have warranty either through the store or OEM then this is not a cheap fix. The line may go away for periods but eventually it should get worse. The cost of repairs will be worth more than a new replacement TV. So the best advice I can give you is to get a repair estimate to make sure and know what a replacement tv is worth. If its not worth fixing just use the tv until the line gets too annoying or worse then replace it.

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