NEC Lt280 Portable Projector Users Manual

41
4. Convenient Features
	 Making Freehand Drawings on a Projected Image
(ChalkBoard)
The ChalkBoard feature allows you to write and draw messages on a projected image.
NOTE: The ChalkBoard feature is available only when a USB mouse is used.
To display the ChalkBoard tool bar, click the middle button on your mouse or select [ChalkBoard] from the menu.
The tool bar contains the following icons.

 Drag ................. Drags to move the tool bar.
 Pen ................... Left-click and drag to draw....

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4. Convenient Features

 Preventing Unauthorized Use of the Projector
Assigning a keyword prevents the projector from being used by unauthorized individuals.
Assigning a Keyword for the first time
1. Press the MENU button.
The menu will be displayed.
2. Press the SELECT  button to highlight the [Setup] submenu and press the ENTER button.
The page tab [Basic] will be highlighted.
3. Press the SELECT  button twice to highlight the page tab [Security]. 

43
4. Convenient Features
4. Press the SELECT  button four times to highlight [Security].
5. Press the ENTER button to display the Security screen.
6. Press the SELECT  button once to highlight the Keyword entry box and press the ENTER button.
The Software keyboard will be displayed. 

44
4. Convenient Features
7. Enter an alphanumeric keyword using the Software keyboard
For example, to enter “1234”, follow the steps 7-1 to 7-4 below.
NOTE:
• Please make a note of your keyword.
• Do not use spaces (SP) in your keyword.
7-1. Highlight the number “1” and press the ENTER button.
The asterisk “
” will be displayed in the Keyword entry box.
7-2. Press the SELECT 
 button once to highlight “2” and press the ENTER button.
The asterisk “
” will be displayed in the Keyword entry box.
7-3....

45
4. Convenient Features
Checking If Security is enabled
Turn off the projector and turn it back on to check if the Security function is enabled.
1. Press the POWER (ON/STANDBY) button.
The [Power Off / Are you sure?] message will appear.
Press the ENTER button or the POWER (ON/STANDBY) or the POWER OFF button again.
The lamp lights off and the POWER indicator flashes orange. Please wait until the POWER indicator changes from
flashing to steady light.
2. When the POWER indicator lights steady orange,...

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Disabling the Security
1. Press the MENU button.
The on-screen menu will be displayed.
NOTE: Immediately after the projector has been turned on and the “Projector is locked! Enter your keyword.” message is
displayed at the bottom of the screen, pressing the MENU button will display the Keyword entry will be displayed. At this time,
pressing the MENU button will display the on-screen menu.
2. Press the SELECT 
 button to highlight [Setup] and press the ENTER button.
The page tab [Basic] will be...

47
4. Convenient Features
 Using a USB Memory Device
The projector is compatible with a USB memory device which sup-
ports the viewer and security features.
•To use a USB memory device, connect the device to the USB
port (type A).
•Select one of the drive icons for your USB memory in a pane on
the left side of the Viewer window.
•To use a USB memory device as a Protect key for Security func-
tion, select one from the Drive icons in the Security setting screen.
(→ page 82)
NOTE:
•Use commercially...

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 Operation Using an HTTP Browser
Overview
The use of HTTP server functions will allow control of the projector from a web browser without the installation of
special software. Please be sure to use “Microsoft Internet Explorer 4.x” or a higher version for the web browser. (This
device uses “JavaScript” and “Cookies” and the browser should be set to accept these functions. The setting method
will vary depending on the version of browser. Please refer to the help files and the other information...

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Structure of the HTTP Server
Power: This controls the power of the projector.
On ................... Power is switched on.
Off ................... Power is switched off.
Volume: This controls the volume of the projector.

..................... Increases the volume adjustment value.
..................... Decreases the volume adjustment value.
Mute: This controls the mute function of the projector.
Picture On ....... Mutes the video.
Picture Off ....... Cancels the video muting.
Sound On ........ Mutes...

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Source Select: This switches the input connector of the projector.
Computer1 ...... Switches to the COMPUTER 1 IN connector.
Computer2 ...... Switches to the COMPUTER 2 IN connector.
Computer3 ...... Switches to the COMPUTER 3 IN connector. (LT380 only)
Component ..... Switches to the COMPONENT IN connectors.
Video ............... Switches to the VIDEO IN connector.
S-Video ........... Switches to the S-VIDEO IN connector.
Viewer ............. Switches to the Viewer.
LAN ................. Switches to...