When pressing the MENU button after locking the OSD
Menu Description
OSD Locked &
Unlock
This is the function that locks the OSD in order to keep the current states of
settings or prevent others from adjusting the current settings.
Locked : Hold down the menu button for more than five seconds to activate the
OSD adjustment lock function.
Unlock : Hold down the menu button for more than five seconds to deactivate
the OSD adjustment lock function.
Thou