LG Computer Monitor Owner's Manual page 6

Control Panel Functions
Control
100
100
PROCESSING
AUTO CONFIGURATION
CONTROLS LOCKED
CONTROLS UNLOCKED
Direct Access Function
Bring up Contrast and Brightness adjustment.
AUTO adjustment function
When adjusting your display settings, always press the
AUTO/SELECT button before entering the On Screen
Display(OSD). This will automatically adjust your display image
to the ideal settings for the current screen resolution size
(display mode).
The best display mode is 1024x768.
CONTROLS LOCKED/UNLOCKED
: MENU and
This function allows you to secure the current control settings,
so that they cannot be inadvertently changed. Press and hold
the MENU button and
"CONTROLS LOCKED" appears.
You can unlock the OSD controls at any time by pushing the
MENU button and button for 3 seconds:
the message "CONTROLS UNLOCKED" will appear.
A6
button for 3 seconds: the message