There are some blue,red,pink and green vertical lines appearing on my screen.please what is it and how do I fix this?

LG plasma vertical line repair - YouTube

? 2:33
https://www.youtube.com/watch?v=24FkcQoeGPg
Feb 10, 2013 - Uploaded by Matt Mayer
I have an LG plasma, my vertical line is in the middle, as if one would have ... Panasonic Plasma TV TC-P50X5 Vertical GreenBar Line Fix ...

EASY HOW TO FIX LG plasma TV - color bars - YouTube

? 4:45
https://www.youtube.com/watch?v=QyaBiSkc1l8
Dec 16, 2010 - Uploaded by Tampatec
diy HDTV Plasma tv repair tv reparar the red green blue color stripe line vertical bars T- control t-con ..

EASY HOW TO FIX LG plasma TV - color bars - YouTube

? 4:45
https://www.youtube.com/watch?v=QyaBiSkc1l8
Dec 16, 2010 - Uploaded by Tampatec
diy HDTV Plasma tv repair tv reparar the red green blue color stripe line vertical bars T- control t-con ...

I Have An Lg Plasma It Has A Green Line Down The Center What ...

www.diyforums.net/i-have-an-lg-plasma-it-has-a-green-line-down-the-ce...

i have an lg plasma it has a green line down the center what. .... Essentially I just disconnected the flat cable around where the vertical line was, sprayed it with a ...

LG 50PK550 Plasma Single Thin Green Vertical Line - Fixya

www.fixya.com/.../t12061168-lg_50pk550_plasma_single_thin_green

Mar 10, 2008 - Posted on Mar 17, 2012.

If they are large colored circles behind the picture scenes, mine had it too. Fix was as simple as service technician plugging into the EPROM and loading a software update. Picture then was better than day1.

I know this post is old,
But I had the same problem.
I was able to fix it.
Heres a write up I did on the "How To".
I added pictures and diagrams too.http://jasonkoller.blogspot.com/2011/02/lg-du-42px12x-plasma-tv-fix.html

Display section bad.

HP-R4252 NOT LCD TV
IF LCD TV has vertical lines try cleaning T-con board to lcd panel cable or replaced t-con board

first try to hook it into an external monitor if it looks good,I would have to say you have a damaged cable on your monitor.if you are comfortable taking it apart you can try to reseat the ribbon cable on the mobo.you can usually find an online manual for disassembly.

LG 700e
power suply is dad
resistanc is black not show it ohom
plz help

I know not everyone has this ability, but if you can, go to a friend's house and hook up an external monitor to your laptop. You may need to use the function keys to switch from LCD to external, but if the lines go away on the external, you have a bad LCD. If the line shows up still on the external, then your problem is either:

a) video driver (free, easy fix)
b) bad inverter (video 'outputter') ...approximately $10-50/varies + labor costs to replace
c) bad video card/motherboard ...usually between $200-$400 + labor to replace

Hope this helps - please be sure to rate my answer :)

it's called retrace lines ,your screens are set to high or focus block assy which has the screen adjustments on it also is faulty