Hi... It depends on your TV mak, model, chassais, etc.
If it is a menue related, it could be some "Hotel TV" feature that allows hotels to reduce volume or maybe mute it on their TVs (to safeguard other customers).
If it is a fault, get Make, Model and chassais number from the back of your TV (not front) and check them againest the fault in this site: - TV DataBase
Good luck |