Television and Home Theater

Hi there,  I have the Sony KP65WS510 model rear projection tv.  I was wondering if anyone can help me, I have no picture just sound and it has five blinks.  The screen is completely black can't even get a channel number or anything to show up on screen.

 I recently have been told what the 5 blinks means:

means "White Balance Failure (Not Balanced)" and the probable cause locations listed are as follows:

I was watching TV this afternoon and the TV ( model no. 42MF337B) just shut off. I have tried turning it back on and it won't do anything at all. I unplugged it for a couple hours and then tried again and still I am not getting anything. Any ideas?

Hello, my old tv has broke down. stand by light blinks 4 times.Recommended fix is  check IC509 and Q1505 but which board and where is a good place to get parts?

Any help is greatly appreciated