Chosen Solution
We had a storm and my tv died. No power - no standby light… I tested the power board and determined it was bad. I replaced the power board. When I plugged it back in, I get a red blinking light (8 blinks). I tried following trouble-shooting for the limited info I could find to no avail. I then found something about holding the power button in as you plug it back in. That worked insomuch as I got a dark blue screen. There was no logo nor anything else though and it turned itself off after 30-60 seconds. I tested the new power board, as well as the power cord and both seem to be working fine. Any suggestions?
It is possible that when the power came back on, there was a surge and some component was damaged. Try checking your board for any blown capacitors, etc. Also, try adjusting the screen brightness. If there is a visible change in brightness, but there is no image, it is possible either the LCD or the controller is damaged.
