BenQ LCD Color Monitor User's Guide
Key, OSD Lock hot key
Press and hold key for 3 seconds to acti- vate hot key.
OSD lock: Press and hold key for 3 sec- onds to lock OSD.
OSD unlock: Press and hold key for 3 seconds to release OSD lock.
Press and hold key for 3 seconds to acti- vate hot key.
OSD lock: Press and hold key for 3 sec- onds to lock OSD.
OSD unlock: Press and hold key for 3 seconds to release OSD lock.