I PERFORMED THE CONVERGENCE PROCEDURE TO LINE UP THE COLORS BUT STILL SEEMS TO HAVE SOME BLUE NOT IN PLACE . HOW CAN I PERFORM A DEEP ADJUSTMENT ON THE COLORS . THIS DEEP ADJUSTMENT WAS DONE MANY YEARS AGO BY A TECHNICIAN THAT ENTERED A CODE TO THE REMOTE AND WAS ABLE TO DO IT SECTOR BY SECTOR ON THE SCREEN. THE TV HAS A LOGO THAT SAYS LXI MODEL NUMBER 626.54508 591 SERIAL # 52880631 CHASSIS PTV700-AH01 TV RECIEVER LISTED 347H E10839