Locking The Control Keys - ViewSonic PA504W Series User Manual

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.
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