Locking and unlocking the menus
To simplify the normal operation of the surround controller, and
to protect the settings from accidental changes, you can lock
the menus so the advanced parameters cannot be accessed.
To lock the menus
Press Off to put the surround controller in standby.
The display shows:
Press and hold down Mute for several seconds.
The display shows:
To unlock the menus
Repeat the above sequence so that
the display shows:
20
.
Lo cked
Un locke d