Locking control keys
With the control keys on the projector locked, you can prevent your projector settings
from being changed accidentally (by children, for example). When the Panel Key
Lock is on, no control keys on the projector will operate except 
Power.
1.Press 
Lock on the remote control.
2.A confirmation message is displayed. Select Yes to confirm.
To release panel key lock:
1. Press 
Lock on the remote control.
2. A confirmation message is displayed. Select Yes to confirm.
Important
•If you press 
Power to turn off the projector without disabling panel key lock, the projector will still be in locked status the next time it is turned on.
•Keys on the remote control are still functional when panel key lock is enabled.
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