ViewSonic PX701HDP - Locking the Control Keys

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Locking the Control Keys
With the control keys on the projector locked, you can prevent your settings from
being changed accidentally (by children, for example).
NOTE:
When the Panel Key Lock is On, no control keys on the projector will operate
except Power.
1. Press Menu to open the OSD Menu and go to: SYSTEM > Panel Key Lock.
2. Press
/ to select On.
3. Select Yes and press Enter to confirm.
4. To release panel key lock, press and hold
on the projector for 3 seconds.
NOTE:
You can also use the remote control to enter the SYSTEM > Panel Key Lock
menu and select Off.