You can lock the buttons on the projector to prevent anyone from using the projector.
Press the Menu button, select the Management menu, and press Enter.
Select one of these lock types and press Enter:
To lock the projector's power button, select Child Lock.
To turn the projector on, you must press the power button for longer than three seconds.
Child Lock does not prevent the projector from turning on when the power cord is connected if Direct Power On is set to On in the projector's Operation menu.
To lock all buttons on the projector, select Control Panel Lock > Full Lock.
You can use the remote control to control the projector even when the buttons on the projector are locked.
To lock all buttons on the projector except the power button, select Control Panel Lock > Except for Power.
If you see a confirmation prompt, select Yes and press Enter.
Restart the projector to apply the Child Lock setting.
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