NEC M350X - Manual (Page 42)

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3. Convenient Features
 Preventing the Unauthorized Use of the Projector [SECURITY]
A keyword can be set for your projector using the Menu to avoid operation by an unauthorized user. When a keyword
is set, turning on the projector will display the Keyword input screen. Unless the correct keyword is entered, the pro-
jector cannot project an image.
• The [SECURITY] setting cannot be cancelled by using the [RESET] of the menu.
To enable the Security function:
1. Press the MENU button.
The menu will be displayed.
2. Press the
 button twice to select [SETUP] and press the  button or the ENTER button to select [GEN-
ERAL].
3. Press the  button to select [INSTALLATION].
4. Press the  button three times to select [SECURITY] and press the ENTER button.
The OFF/ON menu will be displayed.
5. Press the  button to select [ON] and press the ENTER button.
The [SECURITY KEYWORD] screen will be displayed.
6. Type in a combination of the four  buttons and press the ENTER button.
NOTE: A keyword must be 4 to 10 digits in length.
The [CONFIRM KEYWORD] screen will be displayed.