Is it on the wall by the dinette? Two screws on bottom need to be removed, lift up TV and pull towards you.
If it's overhead in windshield area, access the cabinet from behind by pulling/prying a vent cover off. Should be mounted to a bracket.
Kent and Sally Lunda 2006 Newmar Mountain Aire 4141 4 Slide 400HP Cummins, Spartan Chassis, Hydro Hot 2016 Ford Explorer (Toad)
Living the dream until the money runs out.