NEC Lt155 Lcd Projector Users Manual

							E – 8
MENU
ENTERCANCELSELECT
POWERSTATUS ON
/STAND BY
SOURCE
AUTO 
ADJUST
PC  CARD 
ACCESS
AC  IN
C CARD
PC CONTROLVIDEO
RGB
USBS-VIDEO
AUDIO
AC Input
Connect the supplied power cable’s three-
pin plug here.
Terminal Panel
Slot for Kensington Micro
saver Security System
Rear/Side Features
Rear FootRemote SensorVentilation (inlet)
Ventilation (outlet)
Bottom
Lamp cover
Lamp cover screwRear Foot
Rotate to fine-adjust horizontally
position
Spacer (black rubber)
To fine-adjust the height of the
rear foot, remove the spacer
and rotate the rear foot to the
desired height. 
						

							E – 9
1. Menu Button
Displays the menu.
2. 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 con-
trol.
 :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.
3. Enter Button
Executes your menu selection and activates items selected from the
menu.
4. 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.
5. Source Button
Use this button to select a video source such as a PC, VCR, DVD
player or PC Card Viewer (CompactFlash card).
Each time this button is pressed, the input source will change as fol-
lows:
→ RGB [“DVI (DIGITAL) →  DVI (ANALOG)” on LT156] → Video 
PC Card Viewer ← S-Video ←
If no input signal is present, the input will be skipped.
Top Features
6. Auto Adjust Button (RGB only)
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.
7. Power Button (ON / STAND BY)
Use this button to turn the power on and off when the power is sup-
plied and the projector is in standby mode.
NOTE: To turn off the projector, press and hold this button for a minimum oftwo seconds.
8. PC Card Access Indicator
Lights while accessing a CompactFlash memory card.
9. Status Indicator
When this is lit red (orange in Eco mode) continually, its warning you
that the projection lamp has exceeded 1000 hours (2000 hours in Eco
mode) of service. After this light appears, it is advisable to replace the
projection lamp as soon as possible. (See page E-48). In addition the
message The lamp has reached the end of its usable life. Please re-
place the lamp. appears continually until the lamp is replaced.
If this light blinks red rapidly, it indicates that the lamp cover is not
attached properly or the projector is overheated.
See the Power / Status Light Messages on page E-50 for more details.
10. Power Indicator ( 
 )
When this indicator is green, the projector is on; when the indicator is
orange, it is in standby mode.
MENU
ENTER
CANCEL
SELECT
POWERSTATUS ON
/STAND BY
SOURCE
AUTO 
ADJUST
PC  CARD 
ACCESSC CARD
PC CONTROLVIDEO
USBSV
9 8
7 6 5
10 3 24
1 
						

							E – 10
Terminal Panel Features
MENU
ENTER
CANCEL
SELECT
POWERSTATUS ON
/STAND BY
SOURCE
AUTO  
ADJUST
PC  CARD 
ACCESS
AC  IN
C CARD
PC CONTROLVIDEO
RGB
USBS-VIDEO
AUDIO
9
10 8
7
6
5
4
3
2
1
EO
DVI-DS-VIDEO
AUDIO
LT156
Slot for Kensington
MicroSaver Security System
1. Audio Input Mini Jack (3.5 mm ∅)
This is where you connect audio output from your computer, VCR,
DVD player or laser disc player.
A commercially available audio cable is required.
2. RGB Input/ Component Input Connector (Mini D-Sub 15 pin)
Connect your PC or other RGB equipment. Use the supplied RGB
cable to connect to a PC. Or connect a Macintosh computer here using
the supplied RGB cable. 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.
For LT156: DVI Connector (DVI 29-pin)
This connector can accept digital or analog signal input from a com-
puter with a DVI connector.
If you connect a mini D-sub 15 pin connector of a computer, attach the
supplied DVI-A–VGA adapter to this connector.
3. S-Video Input (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 tradi-tional composite video format.
4. Video Input (RCA)
Connect a VCR, DVD player, laser disc player, or document camera
here to project video.
5. 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 is required
to use this port. Also PC Control Utility 1.0 included in the supplied CD-
ROM must be installed on your PC.
If you are writing your own program, typical PC control codes are on
page E-56.
A cap is put on the port at the factory. Remove the cap when using the
port.6 USB Terminal
Connect a commercially available mouse that supports USB. You can
operate the menu or PC Card Viewer with the USB mouse via this
terminal.
Note that this terminal is not used with a computer and that there may
be some brands of USB mouse that the projector does not support.
7. PC Card Eject Button
Press to eject a CompactFlash memory card.
8. PC Card Slot
Insert a CompactFlash memory card here.
9. AC Input
Connect the supplied power cables three-pin plug here. When you
plug the other end into an active wall outlet, the POWER indicator turns
orange and the projector is in standby mode.
10 Built-in Security Slot ( 
 )
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. 
						

							E – 11
Remote Control Features
NOTE: If you are using a Macintosh computer, you can click either the right-click or left-click button to activate the mouse.
NOTE: If any one of the buttons is pressed and held for 60 seconds or more,
the button operations will cease to operate. This is not a malfunction, rather it
is a feature used to prolong battery power. To cancel this feature, press any one
of the buttons other than the Mouse button.
1. Infrared Transmitter
Direct the remote control toward the remote sensor on the projector
cabinet.
2. Laser Pointer
Beams a laser light when Laser 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.
5. Power Off Button
If the main power is applied, you can use this button to turn your pro-
jector off.NOTE: To turn off the projector, press and hold the POWER OFF button for aminimum of two seconds.
6. Video Button
Press this button to select an NTSC, PAL, SECAM or NTSC4.43 com-
patible video source from a VCR, DVD player, laser disc player or docu-
ment camera.
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 compo-
nent equipment connected to your RGB port (DVI digital on LT156).
9. RGB 2 Button
Not available on LT155/LT154.
For LT156:
Press this button to select DVI analog signal from a computer.
10. Auto Adjust Button (RGB only)
Press this button to automatically adjust the vertical/horizontal posi-
tion, clock frequency/phase and resolution if the projected picture is
not centered, if there are ver tical stripes on the picture or if the picture
is flickering.
11. PJ Button
Press this button to switch the Mouse, Cancel/Right Click, and Enter/
Left Click buttons between the Projector mode (lit red) and the Com-
puter mode. Press this button or any one of the Menu, Help, Pointer,
PC Card, 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.
12. Laser Button
Press and hold this button to activate the laser pointer. When lit, you
can use the laser to draw your audiences attention to a red dot that
you can place on any object.
13. Menu Button
Displays the menu for various settings and adjustments.
14. 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:
▲▼: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.
1
2
KEYSTONE
FREEZE
PIC-
MUTE
HELPPOINTERPC CARD
VIDEO S-
VIDEOAUTO ADJ.
RGB 1
MENU LASER
R-CLICK /CANCEL
RGB 2 PJ
ON OFF
MAGNIFY
VOL.
SLIDE
FOLDER
SLIDE
LIST
3
54
10
11
*
12 9 6
8
7
13*
14 
						

							E – 12
16. 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 Menus. It works the same way as the “Can-
cel” button on the cabinet.
17. 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 Mouse button.
18. Help Button
Provides information about operation and adjustment procedures or
the set information for the current menu or adjustment during menu
operation.
19. Keystone (+) (–) Button
Press the (+) or (–) button to correct the keystone (trapezoidal) distor-
tion, and make the image square.
20. 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 magni-
fied about the center of the screen.
When the image is magnified, the pointer is changed to the magnifying
icon.
21. Freeze Button
This button will freeze a picture. Press again to resume motion.
22. 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.
23. Volume (+) (–) Button
Press (+) to increase the volume and (–) to decrease it.
24. PC Card Button
Press this button to select the PC Card Viewer source.
25. Slide (+) (–) Button
Press (+) to select the next folder or slide and (–) to select the previous
folder or slide.
26. Folder List Button
Press this button to select PC Card Viewer source to display a list of
folders included in a CompactFlash memory card.
27. Slide List Button
Press this button to select PC Card Viewer source to display a list of
slides included in a CompactFlash memory card.
28. Remote Jack
Not available on this model.
*NOTE: The default is the Computer mode, which allows you to use the Mouse,
R-Click/Cancel, and L-Click/Enter buttons as your computer mouse. When the
MENU, HELP, POINTER, PC CARD, 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 10 seconds, the light goes out and the Projec-
tor mode is canceled.
15
KEYSTONE
FREEZE
PIC-
MUTE
HELPPOINTERPC CARD
VIDEO S-
VIDEOAUTO ADJ.
RGB 1
MENU LASER
R-CLICK /CANCEL
RGB 2 PJ
ON OFF
MAGNIFY
VOL.
SLIDE
FOLDER
SLIDE
LIST
17*
18*
19
20
21
22
2316
24
*
25
26
*
27*
15. Enter / Left Click Button
When you are in the Computer mode, this button works as the mouse
left button.
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.
ELFREEZEPIC-
M
UTEPC CARDMAGNIFYVOL.SLIDE
FOLDERSLIDE
LIST
28 
						

							E – 13
Operating Range Remote Control Battery Installation
1. Press firmly and slide the battery cover off.
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.
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 look into the laser pointer while it is on.
•Do not point the laser beam at a person.
30˚7m
7m
30˚30˚
30˚
MENUENTERCANCELSELECT
POWERSTATUS ON/STAND BYSOURCE
AUTO  
ADJUST
PC  CARD 
ACCESS
Remote Sensor 
						

							E – 14
Using Remote Mouse Receiver
The remote mouse receiver enables you to operate your computers mouse functions from the remote control (Computer mode). It is a great
convenience for clicking through your computer-generated presentations. To return to the Projector mode, press the PJ button (lit red).
Connecting the remote mouse receiver to your computer
To use the remote mouse function, connect the remote mouse receiver to your computer with one of the remote mouse cables (USB, PS/2 or Mac
ADB). Choose the appropriate mouse cable for your computer.
NOTE: Depending on the type of connection or OS installed on your computer, you may have to restart your computer or change your computer settings.
Computer
To USB port of PC or
Macintosh
To Mouse port of PC
To ADB port of Macintosh USB Cable
PS/2 Cable
Mac (ADB) Cable To  USB
To PS/2 or Mac
Notes on Connecting with USB Cable
*When you use an IBM PC, the Remote mouse receiver does not support the other operating systems than Windows 98/2000.
*Do not pull out the cable from the USB port of your PC or the remote mouse receiver and then immediately insert it back into the USB port. Allow
a minimum of 5 seconds to elapse between insertion and extraction of the cable.
Doing so repeatedly can result in your PC failing to detect the remote mouse receiver.
*The supplied USB cable is designed especially for the Remote mouse receiver. If you use the USB cable with other equipment, we do not assure
the correct functioning of the equipment.
Remote sensor on the
remote mouse
receiver Remote mouse receiver
When operating a computer via the remote mouse receiver
7m
30˚
30˚ 
						

							E – 15
Switching operation mode between mouse and projector
The three shaded buttons shown on the drawing work as a computer mouse in the Computer mode.
In the Computer mode the PJ button is not lit.
•When the MENU button is pressed, the PJ button lights red to indicate that you are in the Projector mode, which allows the projector menu
operation using the three buttons.
•When the POINTER button is pressed, the PJ button lights red to indicate that you are in the Projector mode and that the MOUSE ▲▼
  button
works as a moving button for the POINTER or magnified image.
•If no buttons are pressed within 10 seconds, the PJ buttons light goes out to indicate that you are in the Computer mode. To enable the projector
menu operation again, press the PJ button to light red. To move the pointer or a magnified image again, turn off the pointer and then turn on the
pointer (press the POINTER button two times).
•When the PJ button is lit, if you want to use the mouse function immediately, press the PJ button to return to the Computer mode (not lit).
KEYSTONE
FREEZE
PIC-
MUTE
HELPPOINTERPC CARD
VIDEO S-
VIDEOAUTO ADJ.
RGB 1
MENU LASER
R-CLICK /CANCEL
L-CLICK/ENTER
RGB 2 PJ
ON OFF
MAGNIFY
VOL.
SLIDE
FOLDER
SLIDE
LIST
KEYSTONE
FREEZE
PIC-
MUTE
HELPPOINTERPC CARD
VIDEO S-
VIDEOAUTO ADJ.
RGB 1
MENU LASER
R-CLICK /CANCEL
L-CLICK/ENTER
RGB 2 PJ
ON OFF
MAGNIFY
VOL.
SLIDE
FOLDER
SLIDE
LIST
Not lit
Works as a mouse for your computer.
Works as a right-click button
for your computer.
Works as a left-click button
for your computer.Lit red
Works as the Select button
on the projector.
Works as the Cancel
button on the projector.
Works as the Enter
button on the projector. 
						

							E – 16
2. INSTALLATION
This section describes how to set up your MultiSync LT156/LT155/LT154 projector and how to connect video and audio sources.
Setting up Your Projector
Your MultiSync LT156/LT155/LT154 Projector is simple to set up and use. But before you get started, you must first:
1. Determine the image size.
2. Set up a screen or select a non-glossy white wall onto which you can project your image.
Ensure that the power cable and any other cables connecting to video sources are disconnected before moving the projector.
When moving the projector or when it is not in use, cover the lens with the lens cap.
Selecting a Location
The further your projector is from the screen or wall, the larger the image. The minimum size the image can be is approximately 25 (0.6 m)
measured diagonally when the projector is roughly 3.7 feet (1.1 m) from the wall or screen. The largest the image can be is 300 (7.6 m) when the
projector is about 40.1 feet (12.2 m) from the wall or screen.
Screen and Projection Distance
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of installation.
Throw distance
Screen size (Unit: cm / inch)
Screen
81.3 (W) X 61.0 (H) / 32 (W) X 24 (H)
61.0 (W) X 45.7 (H) / 24 (W) X 18 (H)
TELE: 25
50.8 (W) X 38.1 (H) / 20 (W) X 15 (H)
Lens center
121.9 (W) X 91.4 (H) / 48 (W) X 36 (H)
60
162.6 (W) X 121.9 (H) / 64 (W) X 48 (H)
80
203.2 (W) X 152.4 (H) / 80 (W) X 60 (H)
100
243.8 (W) X 182.9 (H) / 96 (W) X 72 (H)
120
304.8 (W) X 228.6 (H) / 120 (W) X 90 (H)
150
406.4 (W) X 304.8 (H) / 160 (W) X 120 (H)
200
487.7 (W) X 365.8 (H) / 192 (W) X 144 (H)
240
4027
548.6 (W) X 411.5 (H) / 216 (W) X 162 (H)WIDE: 300
609.6 (W) X 457.2 (H) / 240 (W) X 180 (H)270
1.1/3.6
1.7/5.62.6/8.53.5/11.54.3/14.15.2/17.1
6.5/21.3
8.7/28.510.5/34.4
12.2/40.0
Distance (Unit : m / feet) 
						

							E – 17
Ceiling Installation
Screen top
1.6” (40.3mm)
Lens Center
Screen center
Screen Bottom
Throwing Distance (C)Throwing Angle (α)Projector Foot
D
B
WARNING
•Installing your projector on the ceiling must be
done by a qualified technician. Contact your NEC
dealer for more information.
*Do not attempt to install the projector yourself.
•Only use your projector on a solid, level surface.
If the projector falls to the ground, you can be in-
jured and the projector severely damaged.
•Do not use the projector where temperatures vary
greatly. The projector must be used at tempera-
tures between 32˚F (0˚C) and 95˚F (35˚C).
•Do not expose the projector to moisture, dust, or
smoke. This will harm the screen image.
•Ensure that you have adequate ventilation around
your projector so heat can dissipate. Do not cover
the vents on the side or the front of the projector.
If your projector is mounted on the ceiling and your image is upside down, use the “Menu” and “Select” buttons on your projector cabinet or ▲▼
button on your remote control to correct the orientation. (See page E-37.)
Reflecting the Image
Using a mirror to reflect your projector’s image enables you to enjoy a much larger image. Contact your NEC dealer if you need a mirror. If you’re
using a mirror and your image is inverted, use the “Menu” and “Select” buttons on your projector cabinet or ▲▼ buttons on your remote control to
correct the orientation. (See page E-37.)
Distance Chart
B=Vertical distance between lens center and
screen center
C=Throw distance
D=Vertical distance between lens center and
screen bottom (screen top for ceiling installa-
tion)
Throwing Angle (α) Throwing Distance (C)
1.6” (40.3mm) Lens Center Screen top
Screen center
Screen BottomDB
Projector Foot
Screen Size B C Dα
Diagonal Width Height wide tele wide tele
inch mm inch mm inch mm inch mm inch mm - inch mm inch mm degree - degree
25 635 20 508 15 381 6 150 - - - 44 1110 -1 -40 - - 7.8
30 762 24 610 18 457 7 180 46 1170 - 53 1350 -2 -50 8.9 - 7.8
40 1016 32 813 24 610 10 240 62 1580 - 72 1820 -2 -60 8.8 - 7.7
60 1524 48 1219 36 914 14 370 94 2400 - 109 2760 -4 -90 8.7 - 7.6
67 1702 54 1361 40 1021 16 410 106 2680 - 122 3090 -4 -100 8.7 - 7.6
72 1829 58 1463 43 1097 17 440 114 2890 - 131 3320 -4 -110 8.7 - 7.5
80 2032 64 1626 48 1219 19 490 127 3220 - 146 3700 -5 -120 8.6 - 7.5
84 2134 67 1707 50 1280 20 510 133 3380 - 153 3890 -5 -130 8.6 - 7.5
90 2286 72 1829 54 1372 22 550 143 3620 - 164 4170 -5 -140 8.6 - 7.5
100 2540 80 2032 60 1524 24 610 159 4030 - 183 4640 -6 -150 8.6 - 7.5
120 3048 96 2438 72 1829 29 730 191 4850 - 220 5580 -7 -180 8.6 - 7.5
150 3810 120 3048 90 2286 36 920 239 6080 - 275 6990 -9 -230 8.6 - 7.5
180 4572 144 3658 108 2743 43 1100 288 7300 - 331 8400 -11 -270 8.6 - 7.5
200 5080 160 4064 120 3048 48 1220 320 8120 - 368 9340 -12 -300 8.6 - 7.5
210 5334 168 4267 126 3200 51 1280 336 8530 - 386 9810 -12 -320 8.7 - 7.5
240 6096 192 4877 144 3658 58 1470 384 9760 - 442 11220 -14 -360 8.6 - 7.4
261 6629 209 5304 157 3978 63 1600 418 10610 - 481 12210 -16 -390 8.5 - 7.4
270 6858 216 5486 162 4115 65 1650 432 10980 - - - -16 -410 8.5 - -
300 7620 240 6096 180 4572 72 1830 481 12210 - - - -18 -450 8.5 - -
NOTE: Distances may vary +/–5%.