I have Panasonic 42" Lcd Smart Tv TX-42AS500B , one of the kids threw the remote at it and it has since had a grey list . It still works perfect display is without cracks. Do I have to replace tv screen or T con board? Could any body help me please?
I presume you meant it has a grey "line"?
If this has happened as a result of the screen being struck there must be internal damage to it.
I doubt you'll be able to source one cheaply, they usually cost the same as or more expensive than the cost of the Tv.