When i try to chage the volume on my RCA J20330BL TV i get the message Function Disabled popping up on the screen. yes i know its an old as dirt tv. but hey i paid 20 bucks for it from a hotel that was upgrading. picture is great still so ill use it till it dies. but is there any help for the volume coming back. have tried every option in the settings menus with no luck and have done a hard reset with no luck. Help? Please! lol