Lost picture and sound

(THIS IS NOT A SOLUTION)I'm suprized because we have a 21 YEAR OLD!!! TV!

If you're handy enough you could check for a blown fuse. Unplug TV of course. You'll usually find the fuse somewhere near to where the mains voltage cable is soldered into the motherboard. A lot of TVs are fitted with a fuse which is JUST enough to handle the job and after 5 years of continuous on and off that fuse heats up and cools down. Repeat that over the years and the fuse can simply fracture. You'll need a simple ohm meter to check as these fuses may look OK but are open circuit. If the glass in the fuse is black then it's not fatigue and time to call a tech. Make sure you replace the fuse with the same value. BMW

Not much info as tv went out?? do you know how to work on tvs?? Ok if not the best thing you can do is call a pro Bro. as these sets no a days do not have any user serviceable parts in them and do not have replace ment moduale due to popular belief. Ok to the set at hand if and only if your a tech!!? Could be as simple as a bad connection on the Horizontal driver transformer or driver transistor. First thing to check if its completely dead is the main power supply. Good Luck