NEC LT240K, LT260K User manual

Portable Projector
LT260K/LT240K
User’s Manual
About this user's manual
The fastest way to get started is to take your time and do every-
thing right the first time. Take a few minutes now to review the
user's manual. This may save you time later on. At the begin-
ning of each section of the manual you'll find an overview. If the
section doesn't apply, you can skip it.
CD-ROM version

E-2
Introduction to the Projector
INTRODUCTION
This section introduces you to your new LT260K/LT240K Projector and
describes the features and controls.
Congratulations on Your Purchase of The LT260K/
LT240K Projector
The LT260K/LT240K is one of the very best projectors available today.The
LT260K/LT240K enables you to project precise images up to 500 inches
across (measured diagonally) from your PC or Macintosh computer (desk-
top or notebook), VCR, DVD player, document camera, a laser disc player
or Viewer.
You can use the projector on a tabletop or cart, you can use the projector
to project images from behind the screen, and the projector can be per-
manently mounted on a ceiling*1. The remote control can be used wirelessly.
*1Do not attempt to mount the projector on a ceiling yourself.
The projector must be installed by qualified technicians in order to en-
sure proper operation and reduce the risk of bodily injury.
In addition, the ceiling must be strong enough to support the projector
and the installation must be in accordance with any local building codes.
Please consult your dealer for more information.
Features you'll enjoy:
•The newly developed 3D Reform function allows you to correct trap-
ezoidal distortion for both horizontally and vertically so that the im-
age is square even when projector is positioned off center of the
rooms screen.
•The LT260K/LT240K projector provides wired and wireless network-
ing.When using as a wireless LAN projector, no physical signal cable
connection to a PC is required.*2
*2A wireless LAN card is required.The NEC optional wireless LAN card is
available. (SWL-2100N-N∗)

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INTRODUCTION ⬎ Introduction to the Projector
•Safety protect by Password and Security functions
Password and Security features prevent the projector from being used
by unauthorized individuals.
Password prevents unauthorized individuals from changing projector
settings or adjustments. Security offers complete protection by using
your PC card as a protect key so that the projector will not project a
signal without insertion of the registered PC card and unauthorized
use can be discouraged.
•The built-in Viewer allows you to start your presentation even when a
PC is not available at the site.
•Ahigh-bright 220 watt DC lamp.
•The Standby mode reduces standby power consumption significantly.
•The supplied wireless remote control that operates the projector from
the front side or rear.
•The image can be projected between 30 and 500 inches (measured
diagonally).
•The "Capture" enables you to capture the current projected image.
•An image can be projected from in front or behind a screen, and the
projector can even be installed on the ceiling.
•NEC’s exclusive Advanced AccuBlend intelligent pixel blending tech-
nology - an extremely accurate image compression technology - of-
fers a crisp image with UXGA (1600⳯1200) resolution*3.
•Supports most IBM VGA, SVGA, XGA , SXGA/UXGA(with Advanced
AccuBlend)*3, Macintosh, component signal (YCbCr/ YPbPr) or any
other RGB signals within a horizontal frequency range of 24 to 100
kHz and a vertical frequency range of 50 to 120 Hz. This includes
NTSC, PAL, PAL-N, PAL-M, PAL60, SECAM and NTSC4.43 stan-
dard video signals.
*3A UXGA (1600⳯1200) and SXGA image (1280⳯1024) are displayed
with NEC’s Advanced AccuBlend on LT260K/LT240K.

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NOTE: Composite video standards are as follows:
NTSC: U.S. TV standard for video in U.S. and Canada.
PAL: TV standard used in Western Europe.
PAL-N: TV standard used in Argentine, Paraguay and Uruguay.
PAL-M: TV standard used in Brazil.
PAL60: TV standard used for NTSC playback on PAL TVs.
SECAM: TV standard used in France and Eastern Europe.
NTSC4.43: TV standard used in Middle East countries.
INTRODUCTION ⬎ Introduction to the Projector

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•The supplied remote control can be used without a cable, and you
can even use the remote control to operate your PC's mouse wirelessly
from across the room with the built-in remote mouse function.
•You can control the projector with a PC using the PC Control port.
•USB port allows USB mouse operation*4.
*4The USB ports meet the USB1.1 specification.
•The contemporary cabinet design is light, compact, easy to carry,
and complements any office, boardroom or auditorium.
• Nine pointers are available for your presentation.
INTRODUCTION ⬎ Introduction to the Projector

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Part Names of the Projector
SELECT
C
N
A
C
E
L
T
E
R
N
E
E
M
N
U
SOURCEAUTOADJUST
ON
STANDBY
STATUS
POWER
LAMP
ALIGNMENT
PC-CARD
INTRODUCTION ⬎ Part Names of the Projector
Ventilation (outlet)
Heated air is exhausted
from here
*This security slot supports the MicroSaver®Security System.
MicroSaver®is a registered trademark of Kensington Microware Inc.
The logo is trademarked and owned by Kensington Microware Inc.
Built-in Security Slot
( )*
Adjustable Tilt Foot Lever
(See page E-42)
Remote Sensor
(See page E-20)
Focus Ring
(See page E-43)
Controls
(See page E-8)
Ventilation (inlet)
Zoom Lever
(See page E-43)
Carrying Handle
Lens Cap
Lens
Adjustable Tilt Foot
(See page E-42)

E-7
INTRODUCTION ⬎ Part Names of the Projector
Monaural Speaker (2W)
AC Input
Connect the supplied power cable's three-pin
plug here, and plug the other end into an active
wall outlet.
(See page E-35)
Main Power Switch
When you plug the supplied power cable into an ac-
tive wall outlet and turn on the Main Power switch,
the POWER indicator turns orange and the projector
is in standby mode.
(See page E-36)
Remote Sensor
(See page E-20)
PC Card Slot
Rear Foot
Ventilation
(outlet)
Lamp cover screw
Rear Foot
Rotate to make the projector level.
(See page E-43)
PC Card Eject Button
Lamp cover
(See page E-121)

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INTRODUCTION ⬎ Part Names of the Projector
910 45 11
678 121 3
2
Top Features
1.POWER Button (ON / STAND BY)
Use this button to turn the power on and off when the main power is
supplied and the projector is in standby mode.
NOTE: To turn on or off the projector, press and hold this button for a mini-
mum of two seconds.
2. STATUS Indicator
If this light blinks red rapidly, it indicates that an error has occurred, the
lamp cover is not attached properly or the projector has overheated. If
this light remains orange, it indicates that you have pressed a cabinet
key while the Control Panel Key Lock is enabled. See the Status Indi-
cator section on page E-126 for more details.
3. POWER Indicator ( )
When this indicator is green, the projector is on; when this indicator is
orange, it is in standby or idle mode. See the Power Indicator section
on page E-126 for more details.

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INTRODUCTION ⬎ Part Names of the Projector ⬎ Top Features
4. SOURCE Button
Use this button to select a video source such as a PC, VCR, DVD
player, Viewer (PC card), or LAN.
Press and release this button quickly to display the Source List.
Each time this button is pressed for a minimum of ONE second, the
input source will change as follows:
RGB1 →RGB2 →Video →S-Video →Viewer → RGB1 →...
If no input signal is present, the input will be skipped.
5. AUTO ADJUST Button
Use this button to adjust Position-H/V and Pixel Clock/Phase for an
optimal picture. Some signals may not be displayed correctly or take
time to switch between sources.
6. PC CARD Access Indicator
Lights while accessing a PC card.
7. ENTER Button
Executes your menu selection and activates items selected from the
menu.
8. CANCEL Button
Press this button to exit "Menus". Press this button to return the adjust-
ments to the last condition while you are in the adjustment or setting
menu.
9. SELECT  (+) (–) / Volume Buttons
 : Use these buttons to select the menu of the item you wish to
adjust. When no menus appear, these buttons work as a volume
control.

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 : Use these buttons to change the level of a selected menu item.
A press of the button executes the selection.When the menus
or the Viewer tool bar is not displayed, these buttons can be
used to select a slide, or to move the cursor in Folder List or
Slide List.
When the pointer is displayed, these  buttons move the pointer.
10. MENU Button
Displays the menu.
11. LAMP Indicator
If this light blinks red rapidly, it's warning you that the projection lamp
has exceeded 2000 hours (up to 3000 hours in Eco mode) of service.
After this light appears, replace the lamp as soon as possible. (See
page E-121). If this is lit green continually, it indicates that the lamp
mode is set to Eco. See the Lamp Indicator section on page E-127 for
more details.
12. 3D REFORM Button
Press this button to enter 3D Reform mode to correct the keystone
(trapezoidal) distortion, and make the image square.
INTRODUCTION ⬎ Part Names of the Projector ⬎ Top Features

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INTRODUCTION ⬎ Part Names of the Projector ⬎ Terminal Panel Features
10 11 3 5
421678
91213
Terminal Panel Features
1. RGB IN 1 / Component Input Connector (Mini D-Sub 15 Pin)
Connect your computer or other analog RGB equipment such as IBM
compatible or Macintosh computers. Use the supplied RGB cable to
connect to your computer. This also serves as a component input con-
nector that allows you to connect a component video output of compo-
nent equipment such as a DVD player. This connector also supports
SCART output signal. See page E-28 for more details.
2. RGB IN 2 / Component Input Connector (Mini D-Sub 15 Pin)
This connector has the same function as the RGB IN 1 connector.
NOTE: The RGB IN 2 does not support SCART output signal and Plug &
Play.
3. RGB AUDIO IN Mini Jack (Stereo Mini)
This is where you connect audio output from your computer or DVD
player. A commercially available audio cable is required.
4. RGB OUT Connector (Mini D-Sub 15 Pin)
You can use this connector to loop your computer image to an external
monitor from the RGB 1 or 2 input source.
The RGB analog signal set on RGBOUT Terminal is output during idle
mode. See pages E-31 and 100.

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INTRODUCTION ⬎ Part Names of the Projector ⬎ Terminal Panel Features
5. AUDIO OUT Mini Jack (Stereo Mini)
Connect an additional audio equipment here to listen to audio coming
from your computer, Video or S- Video input.
Note that there is no audio output from this jack during Standby and
Idle.
6 S-VIDEO IN Connector (Mini DIN 4 Pin)
Here is where you connect the S-Video input from an external source
like a VCR.
NOTE: S-Video provides more vivid color and higher resolution than the tra-
ditional composite video format.
7. VIDEO IN Connector (RCA)
Connect a VCR, DVD player, laser disc player, or document camera
here to project video.
8. VIDEO AUDIO IN Jacks (RCA)
L : This is your left channel audio input for stereo sound coming from
the VIDEO source.
R : This is your right channel audio input for stereo sound from the
VIDEO source.
9. PC CONTROL Port (Mini DIN 8 Pin)
Use this port to connect your PC to control your projector via a serial
cable. This enables you to use your PC and serial communication pro-
tocol to control the projector.The NEC optional serial cable (CA03D) is
required to use this port. You can also control the projector by using
Dynamic Image Utility 2.0 included on the supplied CD-ROM.
To do so you must first have Dynamic Image Utility 2.0 installed on your
PC. If you are writing your own program, typical PC control codes are
on page E-136. A cap is put on the port at the factory. Remove the cap
when using the port.

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10. USB Port (Type A)
Connect a commercially available mouse that supports USB. You can
operate the menu or Viewer with the USB mouse via this port.
Note that this port should not be connected to a computer and that
there may be some brands of USB mouse that the projector does not
support.
11. USB Port (Type B)
Connect this port to the USB port (type A) of your PC using the sup-
plied USB cable. You can operate your computer's mouse functions
from the remote control.
12. PC CARD Eject Button
Press to eject a PC card partially.
13. PC CARD Slot
Insert a PC card, commercially available LAN card or NEC optional
wireless LAN card here.
INTRODUCTION ⬎ Part Names of the Projector ⬎ Terminal Panel Features

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Part Names of the Remote Control
M
E
N
U
PJ
ASPECT
OFF
VIDEO
AUTO ADJ.
S-VIDEO RGB1 RGB2
LASER
ON
3D REFORM
HELP POINTER
VOLUME MAGNIFY
PICTURE
PIC-MUTE
VIEWER
SLIDE
FOLDER
SLIDE
LIST
E
N
T
E
R
C
A
N
C
E
L
POWER
SELECT
FREEZE
16
21
19
26
27
28
29
17
20
22
24
25
23
1514
12
1110
96 8
7
4
5
3
18
13
INTRODUCTION ⬎ Part Names of the Remote Control
PJ
A
SPECT
FREEZE
3D REFORM
POINTER
NIF
Y
VIEWER
SLIDE
OFF
VIDEO
AUTO ADJ.
S-VIDEO RGB1 RGB2
LASER
ON
POWER
SELECT
2 1
NOTE: If you are using a Macintosh com-
puter, you can click either the right-click
or left-click button to activate the mouse.
1. Infrared Transmitter
Direct the remote control toward
the remote sensor on the projector
cabinet.
2. LASER Pointer
Beams a laser light when the LA-
SER button is pressed.
3. LED
Flashes when any button is
pressed.
4. POWER ON Button
If the main power is applied, you
can use this button to turn your pro-
jector on.
NOTE: To turn on the projector, press
and hold the POWER ON button for a
minimum of two seconds.
5. POWER OFF Button
You can use this button to turn your
projector off.
NOTE: To turn off the projector, press
and hold the POWER OFF button for
a minimum of two seconds.

E-15
INTRODUCTION ⬎ Part Names of the Remote Control
6. VIDEO Button
Press this button to select an NTSC, PAL, PAL-N, PAL-M, PAL60,
SECAM or NTSC4.43 compatible video source from aVCR, DVD player,
or laser disc player.
7. S-VIDEO Button
Press this button to select an S-Video source from a VCR.
8. RGB 1 Button
Press this button to select a video source from computer or component
equipment connected to your RGB IN 1 port.
9. RGB 2 Button
Press this button to select a video source from computer or component
equipment connected to your RGB IN 2 port.
10. AUTO ADJ Button
Use this button to adjust an RGB source for an optimal picture. Some
signals may not be displayed correctly or take time to be displayed.
See page E-47.
11. LASER Button
Press and hold this button to activate the laser pointer. When lit, you
can use the laser to draw your audience's attention to a red dot that
you can place on any object.
12. MENU Button
Displays the menu for various settings and adjustments.

E-16
INTRODUCTION ⬎ Part Names of the Remote Control
13. SELECT  (Mouse) Button
When you are in the Computer mode, these buttons work as a com-
puter mouse. When you are in the Projector mode, which is indicated
by lighting the PJ button. See page E-52.
 :Use these buttons to select the menu of the item you wish to
adjust.
 :Use these buttons to change the level of a selected menu item.
A press of the button executes the selection.
When the pointer is displayed, these  buttons move the pointer.
When the pointer is not displayed, these  buttons are for adjust-
ing the image.
14. ENTER (Left Click) Button
When you are in the Computer mode, this button works as the mouse
left button. When this button is pressed and held for a minimum of 2
seconds, the drag mode is set. When you are in the Projector mode,
which is indicated by lighting the PJ button:
Use this button to enter your menu selection. It works the same way as
the ENTER button on the cabinet. See page E-9.
15. CANCEL (Right Click) Button
When you are in the Computer mode, this button works as the mouse
right button.When you are in the Projector mode, which is indicated by
lighting the PJ button: Press this button to exit the Menus. It works the
same way as the CANCEL button on the cabinet.
16. PJ Button
Press this button to switch the SELECT, CANCEL, and ENTER but-
tons between the Projector mode (lit red) and the Computer mode.
Press this button or any one of the POWER ON/OFF, MENU, ASPECT,
3D REFORM, HELP, POINTER, MAGNIFY, PICTURE, VIEWER,
FOLDER LIST or SLIDE LIST buttons to switch to the Projector mode
and the PJ button lights red. To switch back to the Computer mode,
press the PJ button again. See page E-52.

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INTRODUCTION ⬎ Part Names of the Remote Control
17. ASPECT Button
Press this button to display the Aspect Ratio select screen. See page
E-86.
18. FREEZE Button
This button will freeze a picture. Press again to resume motion.
19. 3D REFORM Button
Press this button to enter 3D Reform to correct the keystone (trapezoi-
dal) distortion, and make the image square. See page E-44.
20. HELP Button
Provides the online help or the set information.
21. POINTER Button
Press this button to display one of the eight pointers; press again to
hide the pointer. You can move your pointer icon to the area you want
on the screen using the Select  button. See page E-54.
22. VOLUME (+) (–) Button
Press (+) to increase the volume and (–) to decrease it.
23. MAGNIFY (+) (–) Button
Use this button to adjust the image size up to 400%. When the pointer
is displayed, the image is magnified about the center of the pointer.
When the pointer is not displayed, the image is magnified about the
center of the screen. When the image is magnified, the pointer is
changed to the magnifying icon. See page E-55.
24. PICTURE Button
Press this button to display the Picture adjustement screen such as
Brightness, Contrast, Color, Hue, and Sharpness. See page E-85.

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25. PICTURE MUTE Button
This button turns off the image and sound for a short period of time.
Press again to restore the image and sound.
NOTE: When the menu is displayed, a press of this button mutes an image and
sound without turning off the menu.
26. VIEWER Button
Press this button to select the Viewer source.
27. SLIDE (+) (–) Button
Press (+) to select the next folder or slide and (–) to select the previous
folder or slide. See page E-67.
28. FOLDER LIST Button
Press this button to select Viewer source to display a list of folders
included in a PC card. See page E-67.
29. SLIDE LIST Button
Press this button to select Viewer source to display a list of slides in-
cluded in a PC card. See page E-67.
NOTE: The default is the Computer mode, which allows you to use the SE-
LECT, CANCEL, and ENTER buttons as your computer mouse. When the
POWER ON/OFF, MENU, ASPECT, 3D REFORM, HELP, POINTER, MAG-
NIFY, PICTURE, VIEWER, FOLDER LIST, or SLIDE LIST button is pressed,
the PJ button lights red to indicate that you are in the Projector mode. If no
buttons are pressed within 60 seconds, the light goes out and the Projector
mode is canceled.
INTRODUCTION ⬎ Part Names of the Remote Control

E-19
Battery Installation
1. Press the catch and remove the battery cover.
2. Remove both old batteries and install new ones (AA). Ensure that you
have the batteries' polarity (+/-) aligned correctly.
3. Slip the cover back over the batteries until it snaps into place. Do not mix
different types of batteries or new and old batteries.
Note on Remote Control Operation:
If you press and hold the SELECT  button while installing new
batteries, the remote control may fail to work properly.
Should this happen, remove the batteries and then install them again with-
out touching the SELECT button.
INTRODUCTION ⬎ Part Names of the Remote Control

E-20
Remote Control Precautions
• Handle the remote control carefully.
• If the remote control gets wet, wipe it dry immediately.
•Avoid excessive heat and humidity.
•If you will not be using the remote control for a long time, remove the
batteries.
•Do not place the batteries upside down.
•Do not use new and old batteries together, or use different types of
batteries together
INTRODUCTION ⬎ Part Names of the Remote Control
30
˚
30
˚
30
˚
30
˚
Operating Range
7m/22 feet
7m/22 feet
Remote control
Remote sensor on the
projector cabinet
•The infrared signal operates by line-of-sight up to a distance of about
22 feet/7 m and within a 60-degree angle of the remote sensor on the
projector cabinet.
•The projector will not respond if there are objects between the re-
mote control and the sensor, or if strong light falls on the sensor.
Weak batteries will also prevent the remote control from properly
operating the projector.