Question LG 49uj6200 screen blank

[Midget3820]

LG 49uj6200 screen black. Powers on the screen is “lit” but blank. Sound works. Any suggestion? I have checked all connection. Reset the tv. I have contacted lg. It is out of warranty. But has been used probably less than 20 times.

 

[helpstar]

Can you see a picture using a flash light with the TV´s panel?