Sound no picture on 50 inch samsung plasma TV PS50A456

[Guest]

Hello,
my 50 inch plasma TV suddenly stopped working properly - it has sound & almost no picture - there's a dark imprint in front of a poor quality picture? Whats gone wrong?

 

[soundguruman]

The illumination source lamp is burned out?

 

[mrtired]

You may have a bad Y-driver board, or a failed panel. Time to call for service.