I was watching 2007 VIZIO 47 LCD TV, I left the room for 30 miniutes and came back to a very dark grey screen with a few random streaks of light and audio only. I could not turn off the TV set either manually or with the remote. I unplugged teh TV, screen turned black. I called the VIZIO Tech support. I followed their directions to hold for 1 minute the on-off switch while unplugged. No change. While plugged in, there is no glow from the back of the monitor. Technician stated the backlight may be burned out. Could this be instead a burned fuse? Where are the fuses located to check?

Televison & Video - V, Inc. - Vizio P50HD Plasma Television