big screen tv

[jamf]

Check out this site: http://www.avsforum.com/avs-vb/

I purchased a Sony HDTV( CRT) a few years ago and it needed some tweaking.
They had a thread for my exact unit. It included the service code manual and a user guide explaining what each setting was.

I would do a search for model number first and hopefully there is something there that might help.

Because there is no sound, I doubt the bulb died( if you have a projection tv).
It could be something as simple as a blown fuse.