TV POWERS UP JUST FINE BUT AFTER ABOUT 15 OR 20 MINUTES, TV POWERS ITSELF OFF AND AN ERROR CODE FLASHES ON THE LOWER LEFT OF THE SET...CODE THAT INDICATES IS: 1 9 2 3 AND THEN A LONG FLASH BEFORE REPEATING....BY PLACING A FAN BLOWING INTO THE ENTERTAINMENT CENTER, TIME IS EXTENDED BEFORE SET TURNS OFF...POWER SUPPLY PROBLEMS MAYBE? ANYONE KNOW WHAT THAT ERROR CODE MEANS? I HAVE NOT TAKEN THE BACK OFF AS YET TO INVESTIGATE...ANY HELP WOULD BE GREATLY APPRECIATED..THANKS

CLYDE IN ROCKWALL TEXAS