NEC Lt240 Portable Projector Users Manual

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USING ON-SCREEN MENU 
 Menu Descriptions & Functions
Security
The Security function enables you to protect your projector so that the
projector will not project a signal unless you enter a keyword. There is also
an option to lock the projector by using a registered PC card as a protect
key. Once you have registered your PC card as a protect key, you are
required to insert the registered PC card into the PC card slot of the pro-
jector each time you turn on the projector. You can enable the Security
function by using a keyword only.
Enable/Disable .......... This turns the Security function on or off.
Keyword .................... Enter an appropriate keyword when you use the
Security function.
(Up to 10 characters can be used.)
The Security function is available only when your
keyword is entered.
Use Protect key ......... Check this box to lock your projector when us-
ing a PC card. To use a keyword without a PC
card, do not check this box.
Read ......................... Reads data of a PC card.
Register ..................... Registers data of the PC card.
The Security function is not available unless at
least one PC card is registered. (if the “Use Pro-
tect key” check box is selected)
Up to 5 PC cards can be registered.
Delete ........................ Deletes data of a registered PC card. 
						

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USING ON-SCREEN MENU 
 Menu Descriptions & Functions
To set up a keyword to enable the Security function without using a regis-
tered PC card
1. Use the SELECT 
 button to select “Keyword” and use the software
keyboard to enter a keyword.
NOTE: Please make a note of your keyword.
2. Use the SELECT 
 button to select “Enable” and use the SELECT

 button to select “OK”, then the Security function will be enabled. An
“Are you sure?” message will appear. Use the SELECT  button and
press the ENTER button.
The Security function takes effect.
To register a PC card as a protect key
1. Insert a PC card into the PC card slot of the projector.
2. Use the SELECT 
 button to select Read and press the ENTER but-
ton.
Data of the PC card will be read into the projector.
3. Use the SELECT 
 button to select Register and press the ENTER
button.
Downloaded data will be registered and be displayed in the list window.
4. Use the SELECT 
 button to select Keyword and use the software
keyboard to enter a keyword.
NOTE: To use a PC card as a protect key, you must also set up a keyword. Please
make a note of your keyword.
This completes registration of your PC card.
To enable Security, use the SELECT 
 button to select Enable and
use the SELECT 
 button to select OK and Security function will be
enabled. An “Are you sure? message will appear. Use the SELECT 
button and press the ENTER button.
The Security function takes effect. 
						

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USING ON-SCREEN MENU 
 Menu Descriptions & Functions
To turn on the projector when Security is enabled (when using your key-
word only)
1. Press and hold the POWER button for a minimum of two seconds.
The projector will be turned on and display a message to the effect that
the projector is security-protected.
2. Select [Projector Options] → [Security] from the menu and press the EN-
TER button.
The Release Code input screen will be displayed.
3. Enter your keyword in the Release Code input screen.
You can view the projected image.
NOTE: Do not forget your keyword. However, if you forget your keyword, NEC or
your dealer will provide you with your Release Code. See more information at the
end of this section.
To turn on the projector when Security is enabled (when using a PC card
as a protect key)
1. Insert your registered PC card into the PC card slot.
2. Press and hold the POWER button for a minimum of two seconds.
The projector will turn on and then recognize the PC card. Once the im-
age has been projected, it will stay on without the PC card.
To delete PC card data you registered
1. Use the SELECT 
 button to select Register and use the SELECT 
button to select the list window.
2. Use the SELECT 
 button to select the PC card data you wish to de-
lete.
3. Press the SELECT  button to select Delete and press the ENTER
button.
The PC card data will be deleted. 
						

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USING ON-SCREEN MENU 
 Menu Descriptions & Functions
If youve lost your registered PC card, proceed as follows:
NOTE: NEC or your dealer will provide you with your Release Code in ex-
change for your registered keyword and Request Code. See more information
at the end of this section.
1. Press and hold the POWER button for a minimum of two seconds.
The projector will be turned on and display a message to the effect that
the projector is security-protected.
2. Select [Projector Options] → [Security] from the menu and press hte EN-
TER button.
The Release Code input screen will be displayed as well as your Request
Code (24 alphanumeric characters).
3. Enter your Release Code in the Release Code Input screen.
The projector will turn on.
*If the projector is turned on by entering the Release Code, your Secu-
rity will be disabled.
NOTE:
*Some types of PC cards cannot be registered as your protect key.
*It is recommended that you register two or more PC cards in case you lose or
damage your registered PC card.
*Formatting your registered PC card will disable your protect key function.
NOTE:
For additional information visit:
US : http://www.necvisualsystems.com
Europe : http://www.nec-europe.com/
Global : http://www.nec-pj.com/ 
						

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USING ON-SCREEN MENU 
 Menu Descriptions & Functions
Tools
Provides tools for setting sleep timer, capturing images, displaying files or
changing your background logo in a PC Card and drawing.
NOTE: The Capture and PC Card Files features are required for a PC card.
Using Sleep Timer
1. Select your desired time between 30 minutes and 16 hours: Off, 0:30, 1:00,
2:00, 4:00, 8:00, 12:00, 16:00.
2. Select “Set” and press the ENTER button on the remote control.
3. The remaining time starts counting down.
4. The projector will turn off after the countdown is complete.
NOTE:
•To cancel the preset time, set Off for the preset time or turn off the power.
•When the remaining time reaches 3 minutes before the projector is turned off,
the Projector will turn off in 3 minutes message will be displayed on the
bottom of the screen.
Using Capture
Allows you to capture an image from a source that is currently being dis-
played. The image is saved as JPEG in the PC card. When you select
Capture from the menu, you will get a tool bar. You can capture an image
directly using the tool bar when the menu is not displayed.
See page E-69.
Using PC Card Files
The PC Card Files feature allows you to display a list of all the files stored
in the PC card so that you can select a file you want to display. You can
also sort files by file name or date, or display the file. See page E-59. 
						

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USING ON-SCREEN MENU 
 Menu Descriptions & Functions
[Page 1]
Source Name
Input Terminal
Entry No.
Horizontal Frequency
Vertical Frequency
Sync Polarity[Page 2]
Signal Type
Video Type
Sync Type
Interlace[Page 3]
Remaining Lamp Time (%)
Lamp Hour Meter (H)
Projector Usage (H) Changing Background Logo:
You can change the default background logo using the PC Card Files
feature.
NOTE: File size must be 256KB or less. Other file formats than JPEG and
BMP are not available. See page E-59.
Using ChalkBoard
The ChalkBoard feature allows you to write and draw messages on a pro-
jected image. See page E-61
NOTE: This feature is available only when using with USB mouse. See page E-58.
Help
Contents
Provides an online help about how to use the menus. An underlined link
means that you can move to an adjustment item directly.
Selecting the underlined link and pressing ENTER moves to the corre-
sponding adjustment item.
Information
Displays the status of the current signal, and the lamp and the projector
usage hours. This dialog box has three pages.
The information included are as follows: 
						

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NOTE: The progress indicator shows the percentage of remaining bulb life. The
value informs you of the amount of lamp and projector usage respectively.
Remaining Lamp Time Display:
When the remaining lamp time reaches 0, the Remaining Lamp Time
bar indicator changes from 0% to 100 Hours and starts counting down.
If the remaining lamp time reaches 0 hours, the projector will not turn
on regardless of whether the lamp mode is set to Normal or Eco.
Returning to Factory Default
The Factory Default feature allows you to change adjustments and setting
to the factory preset for source except the following:
All Data ........... Reset all the adjustments and settings for all the sig-
nals to the factory preset except Remaining Lamp Time,
Lamp Hour Meter, Projector Usage, Language, Back-
ground, Entry List, Communication Speed, Security and
Passcode. (To reset the lamp usage time, see “Clear
Lamp Hour Meter” on page E-100)
Current Signal . Resets the adjustments for the current signal to the
factory preset levels.
All the items in Picture, Volume, Image Options
and Picture Management can be reset.
USING ON-SCREEN MENU 
 Menu Descriptions & Functions 
						

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MAINTENANCE
This section describes the simple maintenance procedures you should
follow to replace the lamp, and to clean the cabinet and the lens.
Replacing the Lamp
After your lamp has been operating for 1500 hours (up to 2000 hours : Eco
mode) or longer, the Lamp indicator in the cabinet will blink red and the
message will appear. Even though the lamp may still be working, replace
it at 1500 hours (up to 2000 hours : Eco mode) to maintain optimal projec-
tor performance.
CAUTION
•DO NOT TOUCH THE LAMP immediately after it has been used. It
will be extremely hot. Turn the projector off, wait 90 seconds, turn off
the main power switch, and then disconnect the power cable. Allow
at least one hour for the lamp to cool before handling.
•DO NOT REMOVE ANY SCREWS except the lamp cover screw and
two lamp case screws. You could receive an electric shock.
•The projector will turn off and go into stand by mode after 1600 hours
(up to 2100 hours : Eco mode) of service. If this happens, be sure to
replace the lamp. If you continue to use the lamp after 1500 hours
(up to 2000 hours : Eco mode) of use, the lamp bulb may shatter, and
pieces of glass may be scattered in the lamp housing. Do not touch
them as the pieces of glass may cause injury.
If this happens, contact your NEC dealer for lamp replacement. 
						

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MAINTENANCE
Interlock
To replace the lamp:
1. Loosen the lamp cover screw until the screwdriver goes into a freewheel-
ing condition and remove the lamp cover. The lamp cover screw is not
removable.
2. Loosen the two screws securing the lamp housing until the screwdriver
goes into a freewheeling condition. The two screws are not removable.
3. Remove the lamp housing by pulling out the handle.
NOTE: There is an interlock on this case to prevent the risk of electrical shock.
Do not attempt to circumvent this interlock. 
						

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MAINTENANCE
4. Insert a new lamp housing until the lamp housing is plugged into the
socket.
CAUTION
Do not use a lamp other than the NEC replacement lamp (LT60LP).
5. Secure it in place with the two screws.
Be sure to tighten the screws.
6. Reattach the lamp cover.
7. Tighten the lamp cover screw.
Be sure to tighten the screw.