So what's wrong now the melody or No Picture?
Suddenly, our LCD TV Series 6, 650 will display no picture or other information from the set-top box, when the remote power on button is pressed; however, the confirmation that the TV has received the "power on" instruction is confirmed by the Melody. The Melody continues to play even when we pull the plug on the TV and then plug it back in. We have confirmed that the set top box is functioning properly and have isolated the problem to the on/off switch. We have attempted to power the system on and off using the manual controls on the set, without results. Yesterday, we had the same problem, but suddenly the picture came on and the set worked perfectly as it always has in the past. Any suggestions? (P.S. The Melody is nice, but right now, it is driving us crazy.)