I can turn the TV on and off, green light stays solid, but no sound and a black screen. This morning the TV had sound and gray fuzz, but I thought it was the cable b/c we had thunderstorms last evening. Not the cable, it works fine. I came home after work to find the no sound/black screen condition. Any ideas?

Hi Ron,
To determine where the fault came from, you may activate the "self diagnostic" mode of the unit. Once the unit is in self diagnostic, the led light will flash indicating the error code(first digit) then pause and will flash again(second digit error code). Count how many blinks does the unit have for first digit and second digit. Flashing of the led light error code will repeat 5 times.
Here's how to activate the "self diagnostic mode".
Press and hold the front panel buttons (not in the remote) "Input" and "Menu" at the same time for 5 second.
Let me know how many blinks it has to pinpoint what is the caused of the symptoms.
Jdvillanueva