Samsung lcd picture goes black

[johnnyhardwood]

Hello,my samsung 46in.lnt4665fxxxaa lcd tv is 2 years old. For the past 3-4 months it has taken longer and longer to power on. Then the purple dots appeared in the background.Now i have a picture when i first turn it on,then it goes black immediately after. I still have sound but no picture! Please help!!!!

 

[anwaypasible]

i doubt there is a reset button or fuse to replace that we can point you to.
if you want it fixed, you'll need to find an electronics repair shop.

if you search the internet hard enough, you might find out what circuit board is failing.
but
that doesnt mean you will find the circuit board available for sale.