Blue screen, no picture. What's wrong?
The board where the power button is located (same board for the other buttons too) is probably bad. It's all one board, which tells the power board to come on. If this happened after a power surge, and you're not using a surge protector, multiple boards can be bad. (You can't just plug these fragile TV and Blu-Ray players into the wall outlet. Eventually a surge will destroy them). Ps... A lot of people are suddenly making this same complaint with Vizio TV's.