I have a 50 inch Samsung plasma model PN50A400C2DXZA mfg oct 2008. Has a 3 inch black vertical line on the left side of screen approx 1/3 rd of way from right side.

What about it?!

If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

Vertical lines on Samsung LED TV

If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to both Plasma & LCD screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD screen are similar, irrespective of its brand and screen size.

Fix Panasonic Plasma TV Vertical or Horizontal Bars ...

? 10:21
https://www.youtube.com/watch?v=CpWZTnAXbLg
Dec 30, 2013 - Uploaded by Pet Rock's Garage
This video covers how to fix a Panasonic 42" Plasma TV model TH-42PX600U that has vertical distorted ...

Horizontal black lines on Samsung 50" plasma tv - Forums - CNET ...

www.cnet.com > Forums > Samsung

CNETJun 11, 2015 - This past spring, a thin black horizontal line appeared across the screen, everything else is working fine. Next day ... In reply to: Horizontal black lineson Samsung 50" plasma tv .... I tried a white wash on the TV, but that didn't removethe line. Plasma TV has 3 thin black lines
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Samsung LN46B650 Thin Black Horizontal Lines - Forums - CNET

www.cnet.com > Forums > Samsung

CNETJun 11, 2015 - I'm experiencing thin black lines from the top of the screen to the bottom. ... my lcd tv has multiple lines are horizontal it starts from the right and fades too the left, ... Samsung LN55a950 - Horizontal lines on right side - Forums - CNET
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Plasma TV Repair Horizontal Lines - How to Diagnose ...

? 2:49
https://www.youtube.com/watch?v=h4XWCxUsSVU
Sep 2, 2014 - Uploaded by ShopJimmy.com
I have thin horizontal black lines on the top and bottom areas of my TV. .... Hi, I have a 2011 64-inch 3D Samsung PN64D8000 Plasma TV.

how to fix horizontal or vertical lines on lcd tv - YouTube

? 4:52
https://www.youtube.com/watch?v=k2QpYJp6MU8
Apr 12, 2014 - Uploaded by cr4zyw3ld3r
Hi my LG 47ln5700 tv set has thin greyish black horizontal lineson one side of the .... I hope this works good with Samsung LCD as well....

Visit the site named 'Electro-help' for more details. Check this link and select the site named above. View it in 'Flip card' option, which can be selected from the drop down box menu by the [Sidebar] tag, at the left top left corner of the display window. It will make search easy. Some times, the ads attached with each posts both at the right and bottom, might help you to find the availability of spare parts. There are more than 640 posts to different brand TVs now. Will be updated daily. Faults to Samaung Plasma TVs are given in detail.

my 50 inch samsung is 4 years old. a black line has appeared just off centre screen. the line is approx.an inch wide and runs from top to bottom. can it be repaired?

ey there. have you solved this thing yet? you might want to check out this DIY plasma TV repair blog. there's a video on how to fix this.