VIEWSONIC VS13647 - Manual (Page 30)

ViewSonic Pro8400 26
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 and hold for 3 seconds on the
projector or remote control.
To release panel key lock, press and hold for
3 seconds on the projector.
Important
„ Keys on the remote control are still functional when panel key lock is
enabled.
„ 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.
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