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1.
Press and hold button 4 for four seconds, a menu appears on the screen.
2. Select one of the following options:
Table 21. Buttons lock and descriptions.
Control Buttons
Description
Select this option to lock the OSD menu function.
1
Menu Buttons lock
2
Use this option to lock the power button. This prevents the user to turn off
the monitor using the power button.
Power Button lock
3
Use this option to lock the OSD menu and power button to turn off the
monitor.
Menu and Power Buttons lock
Use this option to run the onboard diagnostics, see Onboard diagnostics.
4
Onboard Diagnostics
To unlock the buttons.
Press and hold the onboard diagnostics button (button 4) for four seconds until a menu appears on the screen. The following table
describes the options to unlock the front-panel control buttons.
Table 22. Buttons unlock and descriptions.
Control Buttons
Description
1
Select this option to unlock the OSD menu function.
Menu Buttons unlock
2
Use this option to unlock the power button to turn off the monitor.
Power Button unlock
3
Use this option to unlock the OSD menu and power button.
Menu and Power Buttons unlock
4
Use this option to run the onboard diagnostics, see Onboard diagnostics.
Onboard Diagnostics
43
Operating your monitor