You didn't drop it, by the way? Don't volunteer to tell that to the shop, when applying for warranty.
I just bought a 46B750 couple days ago. I tried first time to boot up, and hook it up to cable in my friend's house, it's working perfect.
Then I move it to my home, boot it up again, only black screen, no even menu. I can only turn it on or off, and that's it. It's SOLID Black screnn...Please, Help.