Sony Bravia NX800 HDTV shows white and red stripes

Hi, I have bought a Sony Bravia NX800 HDTV for my home entertainment recently. Two days ago it was raining and lightening out side. So I put all the connections disconnected. But when the next morning I put all connections on, my Sony Bravia NX800 HDTV shows white and red stripes on the screen horizontally. Can anyone tell me why is this happening?
