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Faulty LG RT-42PX10 Plasma- How can I fix it?

My 7 year old plasma just started displaying a vertical coloured lines recently, although the sound is still coming through ok. I would like to try and fix it as I cannot afford a new TV at the moment. I actually work as an electronics technician, but when it comes to plasma TV's I wouldn't know where to start. Does anyone have any ideas what might be wrong?
Here is a short video of what it is doing http://www.youtube.com/watch?v=R0YSjoeGc84

Thanks.

Jamie
April 2010

LG Video, Televisions Vertical Coloured Lines

i need solution for fluctuation for signal

robert
November 2014

Resolder the cap and resistors on the panel cables

see

http://www.avforums.com/forums/plasma-televisions/462873-black-line-fault-hyundai-hpt4240-fixed.html

also dont forget the earthing tape as the screen will pulse if left off.....

biomedman
April 2011

I have the same problem please please. How can I fix this prolem?????????

Rogs
February 2011

most common trouble comes from faulty capacitor, with even a little dent outward at the top of capacitor's will actually kill you plasma tv

glenn
January 2011

ive got the same problem can u let me know what the problem is please when u find out cheers

Kym
August 2010

My plasma (exact same model ) has just done the same thing

Merv
April 2010