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NEC PA721X User Manual page 50

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7. Type in the same combination of
The confirmation screen will be displayed.
The SECURITY function has been enabled.
1. Press the POWER button.
The projector will be turned on and display a message to the effect that the projector is locked.
2. Press the MENU button.
3. Type in the correct keyword and press the ENTER button. The projector will display an image.
buttons and press the ENTER button.
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3. Convenient Features

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