OSD Lock Out Function
When monitor is in normal display, you can enable the “OSD Lock Out” function.
Option 1: OSD lock – all 4 buttons are locked except the “POWER” button.
Press and hold the 
, 
and 
buttons for same time 3 seconds to lock the buttons.
The monitor will show an “OSD Lock Out” message for 5~10 seconds and the message will disappear automatically.
Repeat this step to unlock.
Option 2: OSD & Power button lock – all 5 buttons including the “POWER” button are locked.
Press and hold the 
and 
buttons for same time 3 seconds to lock all 5 buttons.
The monitor will show an “Lock Out” message for 5~10 seconds and the message will disappear automatically.
Repeat this step to unlock
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