Vertical rainbow on right hand side of screen

replace TCON board.
see procedure at Samsung Plasma TV Repair How to Repair and Replace Main Board

Samsung HL-R6178W DLP TV half of screen goes black [Solved] - HDTV ...

www.tomsguide.com/forum/54431-4-samsung-r6178w-half-screen-black

Aug 28, 2013 - 36 posts - ‎24 authors
Samsung HL-R6178W DLP HDTV I just bought this tv used as is. Every once in a while, the right side of the screen goes black on all inputs. I have read ... As for the 1000 dollar price tag, that's totally bonkers. I found a web site ...Missing: ln52a580

HLR6768W - Right half of screen goes black - Forums - CNET

www.cnet.com > Forums > Samsung

CNETI have a 4 year old 67" Samsung DLP which has worked pretty well other than having... Over the past 6 months it's developed a new behavior where the right half of the screen goes completely black and stays that way until I power cycle the tv.Missing: ln52a580

Samsung LN52A580 Vertical Line Problems - YouTube

? 0:32
https://www.youtube.com/watch?v=eejE6O340EY
Aug 22, 2011 - Uploaded by Jonathan Polis
Samsung LN52A580 Vertical Line Problems ... This feature is not available right now. ... LED LCD TV FIX, How To For Samsung Double Image, Black Vertical Lines, ... Sanyo LCD with DistortedHalf Picture Lines Waves Distortion Distorted ... Samsung DLP Green screen / lines Repair HLR XX67 Series ...

lcd/led tv one side dark video screen display problem fix ...

? 2:28
https://www.youtube.com/watch?v=dYHPKxijz1A

HI,
check the videos
Samsung plasma tv S50hw yb05 vertical colored lines diagnose fix su board... Plasma TV repair attempt Vertical colored lines lots of tobacco

http://electro-medical.blogspot.com/

you'll need a new panel, or a new TV, sorry

What you're describing is usually the result of an improperly seated connector. With the power disconnected, open the tv and locate any connectors between the LCD screen and the driver circuit board. Unplug them, and reconnect it assuring it's properly and firmly seated. Be careful when handling these cables as they tend to be quite fragile... take your time.

How old it ur tv,ur plasma bulbs might need be replace.Could be the plasma tube it bad because long times use.But ur plasma screen it self could damage kind radiation not worth repairing.
U alway make deal with the repair man come out for estimate.Cost u like u repair with him.
Make sure ask him come out for no cost some charge $40 come out.

Hello Depending how wide the line is their could be two possible causes.
I have two questions for you.
1. How wide is the line.
2. Does it run from top of screen to bottom of screen?
If the line is thin a single strait line then it is possible the PDP has gone Bad (Panel). (Screen). The screen will to be replaced.
If the line is at least 2 or more inches wide then its a buffer board which can be replaced. LG calls this board Hand insert Boards or display driver boards..

this is a problem is your scan section either letf or right scan boards are bad. if its under warranty take it back if not it needs to be serviced. you can probably do it yourself.

Had this same issue on right side of 52" about 1 inch from side but had 3 vertical lines that disappeared after 40 minutes. Have Samsung LNT5265FX/XXA and about 16 months old. LCD Panel itself had to be replaced to fix it, fortunately had extended service plan