VIEWSONIC VA3209M 31.5" Monitor - Manual (Page 20)

20
Key Description
2 + 3 Press and hold the keys to lock/unlock the Power button.
When the menu appears on the screen, continue holding both
keys for 10 seconds to lock/unlock the Power button.
3
Power Lock/Unlock
Locking Power Button
Press and hold for 10s
to lock power
If the Power button is locked, the below message will appear on
the screen:
Power Lock/Unlock
Power Button Locked
3 + 4 Press the keys to open the Hot Key List.
Bootup Screen
Message OSD
ON
ON