I bought this tv last September, and when I turned it on this morning, all I got was a loud buzzing sound. I unplugged the tv, and when I plugged it back in the buzzing resumed and no picture showed. When I pressed the OK button, I could hear the tv beep like it does when it goes from the home screen to full screen, but still no picture. Just a loud buzzing, like aaaaannnnnnggggg.
Thanks for the suggestion. I checked the screen for cracks with a flashlight, but didn't see any cracks.Any other possibilities?
Well that's good news that there are no cracks so obviously something inside the TV has failed. The only recourse you have now is to contact Panasonic and arrange for it to be repaired under warranty. Hopefully it's just a simple quick board replacement and not something more serious like a failure in the panel or it's on-board electronics (which would require the whole plasma panel be replaced). Some technicians are very good at isolating exactly which board the buzzing sound is coming from and diagnosing it properly, but others don't know how to do anything other than just start replacing boards until the TV comes back on.
If it is the panel, they may not have any replacements available or may deem it too expensive to repair and invoke their right to buy the dead TV back from you, but i would push hard for repair and tell them any thought of a refund is unacceptable.