Can a mitsubishi plasma tv that was hit with atoy,b fixed if its got sound but lines going through it

Kindly mention type of TV (LCD/LED/Plasma) and model no too.
It highly probable of the Inverter board going bad,
How to fix common plasma TV problems no picture lines buttons not working

It sounds like a bad panel, which is not what you want to hear. Replacing the panel on a Plasma TV usually costs more than just replacing the TV. However a bad panel causes vertical lines exactly as you describe.

This will be your Y SUSTAIN board on the left hand side when you take the back off.
Plenty available on ebay, Very easy fix

look it up online.. some guy uses a baseball bat to fix that on his lcd tv.

its a LCD panel connection issue, not really much other than hitting/ flexing it you can do.

hi luigi what u are getting this lines because probably u arent supporting the best picture for your tv...set a 1080p on ur screen in order to avoid those lines they would go away once u have Hd on ur tv

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, DLP & 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.

i just fixed my gateway 42"plasma with the exact problem.  go to this link, and read entirely and follow!
http://www.avforums.com/forums/plasma-televisions/462873-black-line-fault-hyundai-hpt4240-fixed.html

enjoy!
stephen

sound like panel defect

What does a buffer board look like?

I am getting a vertical green line on my lg 50 incs is the screen or have you a solution