NEC NP610 - Page 54

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4. Convenient Features
7. Type in the same combination of  buttons and press the ENTER button.
The confirmation screen will be displayed.
8. Select [YES] and press the ENTER button.
The SECURITY function has been enabled.
Toturnontheprojectorwhen[SECURITY]isenabled:
1. Press and hold the POWER button for about 1 second.
 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.
NOTE: The security disable mode is maintained until the main power is turned off or unplugging the power cable.