NEC Lt80 Projector Users Manual

							Top Features
1Power Button
Use this button to turn the power on and off when Main Power Switch is
on and the projector is on standby. (When this button is pressed and held
for at least two seconds, the ÒDisplay MuteÓ mode will be canceled.)
2Menu Button
Displays the on- screen menu.
3Select Button
After you press the ÒMenuÓ button, use this button to select the menu
icon of the item you wish to adjust.
4Enter Button
Executes your menu selection.
5(+) (Ð) Adjust Button
Use these buttons while you re in the Image Adjust mode to change the
level of a selected menu item. These buttons are also used to set an item
in the Power or Settings menus.
6Power Indicator
When the projector is switched On, the green LED blinks for about one
minute, then lights up.
1
19
INTRODUCTION20
PUSH ON/OFF
POWER
STATUSMENU SELECTENTER ADJUST
23 4 5 6 7
If the main power is on and you switch it off by pressing POWER
OFF on the remote control or the POWER button on the projector,
the green LED blinks for one minute, then lights up and the pro-
jector goes on standby.
* The projector will not accept operation instructions for the one
minute during which the LED is blinking during switching on
or off as described above.
7Status Indicator
When this is lit red continually, its warning you that the projec-
tion lamp has exceed 1000 hours of service. After this light ap-
pears, it is advisable to replace the projection lamp as soon as
possible.(See page 63.)
When the operating time of the lamp exceeds 1000 hours, the STA-
TUS indicator is lit red continually. In addition the message LAMP
USAGE XX HOURS appears continually when the on-screen
menu is not displayed.
If this light blinks red rapidly, it indicates that the lamp house is
not attached properly; if the light blinks slowly it means the pro-
jectors internal temperature is too hot to operate safely. See the
Status Light Messages on page 71 for more details. 
						

							Terminal Panel Features
This panel is located in the side and is where you connect your cables.
1Video Input
Connect a VCR, laser disk player, or document camera here to
project video.
Left Channel/Mono Audio Input Jack
This is your left channel audio input for stereo sound coming from
video equipment or audio system. This also serves as your mon-
aural audio input.
Right Channel Audio Input Jack
This is your right channel audio input for stereo sound.
S-Video Input
Here is where you connect S-Video input from an external source
like a VCR.
2PC Control Port
Use this port to connect your PC to control the MultiSync LT80
Projector. This enables you to use your PC and serial communica-
tion protcol to control the projector. If you are writing your own
program, command reference are on pages 83 to 86.
12
21
INTRODUCTION22
PC CONTROLVIDEO INPUT
RGB INPUT RGB OUPUT
S-VIDEO
RGBVIDEOL(MONO) – R-AUDIO
AUDIO RGB AUDIO
3
3RGB Input Connector (Mini D-Sub 15 pin)
Connect your PC or other RGB equipment such as IBM or com-
patible computers. Use the signal cable thats supplied to connect
to a PC.
RGB Audio Input Mini Jack
This is where you connect RGB audio output from a computer or
another RGB source.
NOTE:  S-Video provides more vivid color and higher resolution than
the traditional composite video format. 
						

							4RGB Output Connector (Mini D-Sub 15 pin)
You can use this connector to loop your computer image to an
external monitor from the RGB input source.
Even if VIDEO is selected, the video image input to the RGB
INPUT terminal is output.
Audio Output Mini Jack
You can use this jack to loop your audio to an external monitor
from the VIDEO audio input or RGB audio input source.
5Built-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.4
23
5
INTRODUCTION24
PC CONTROLVIDEO INPUT
RGB INPUT RGB OUPUT
S-VIDEO
RGBVIDEOL(MONO) – R-AUDIO
AUDIO RGB AUDIO 
						

							Remote Control Features
You can use your wireless remote control to operate your MultiSync LT80
Projector. With the remote mouse receiver connected to your computer, you
can also use the projectorÕs remote control to operate your computer. (See
pages 47 and 48 to connect the remote mouse receiver to your computer.)
NOTE: If you are using a Macintosh computer, you can click either the right or
left button to activate the mouse.
1Left Click Button
Use this button to enter your menu selection. It works the same as the
Enter button on the cabinet.
2Laser Pointer
Beams a laser light when ÒLaserÓ button is pressed.
3Infrared Transmitter
Direct the remote control toward the remote sensor on the projector cabinet
or the remote mouse receiver.
4LED
Flashes when any button is pressed.
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POSITION
MAGNIFY
REDUCE PIC-MUTE FREEZE
VIDEO
RGB
MENU
R-CLICKLASER S-VIDEO VOLUME+
-
+
+ -
-
OFF ONPOWER
4
5
6
8
97
0
1
3 2
5Power On And Off
If your main power switch is turned on, you can use these buttons to turn
your MultiSync LT80 Projector on and off.
6Video Button
Press to select an NTSC, PAL, SECAM or NTSC4.43 compatible video
source from a VCR, DVD player, laser disc player or document camera.
7Volume Buttons
Press (+) to increase the volume and (Ð) to decrease it.
8S-Video Button
Press to select an S-Video source from a VCR or other S-Video source.
9RGB Button
Press to select a video source from a computer connected to your RGB port.
0Laser 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 within 30 feet (10 m).
INTRODUCTION26 
						

							POSITION
MAGNIFY
REDUCE PIC-MUTE FREEZE
VIDEO
RGB
MENU
R-CLICKLASER S-VIDEO VOLUME+
-
+
+ -
-
OFF ONPOWER
27
AMenu Button
Use this button to call up the On-Screen Menu so you can adjust and set
the image. After you press this button, it will light up. During this time
you can use the mouse pointer and right/left click buttons to make
menu selections. If no buttons are pressed within 10 seconds the menu
turns off.
BMouse Pointer Buttons
Works as a mouse for your computer. This button is also used to adjust
screen position. Push (+) or (Ð) to select the submenu you want to
adjust.
CRight Click Button
Press this button to exit Menus or Position.
DFreeze Button
This button will freeze a picture. Press again to resume motion.
EPosition Button
When image is magnified, press this button to activate the mouse. This
allows you to select the portion of the image displayed on screen.
Position button will remain lit for 10 seconds or until right click button
is pushed.
F
E
C
D
A
B
INTRODUCTION28 G
NOTE: When you are adjusting Position, the Mouse Pointer button is used to move
the picture.
FPicture Mute Button
This button turns off the image for a short period of time. Press again to
restore the image.
GMagnify/Reduce Button
Use the (+) or (Ð) button to adjust the image size up to 400%.
NOTE: You cannot use Menu and Position at the same time.
Remote Control Precautions
¥ Do not look into the laser pointer while it is on.
¥ Do not point the laser beam at a person.
¥ 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 mix new and old or different types of batteries. 
						

							This section describes how to set up your MultiSync LT80 projector and how
to connect video and audio sources.
Setting Up Your MultiSync LT80 Projector
Your MultiSync LT80 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.
Carrying The Projector Always carry your projector by the handle. Ensure
that the power cord 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.
INSTALLATION 229
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 24
(0.61 m) measured diagonally when the projector is roughly 4 feet (1.2 m)
from the wall or screen. The largest the image can be is 300 (7.6 m) when
the projector is about 40.35 feet (12.3 m) from the wall or screen.
350
300
250
200
150
100
50
0
0.0 6.89 10.33 13.78 17.39 34.94 40.35 ft.
(2.1) (3.15) (4.2) (5.3) (10.65) (12.3) (m)
Projection Distance
Diagonal Image Size (inch)
Projection Distance and Image Size
300Ó
231Ó
WIDE
TELE
27Ó
24Ó
INSTALLATION30
Width
HeightScreen size
(diagonal)
Projection distance 
						

							Using A Tabletop Or Cart
1. Place your projector on a flat level surface at the optimal distance
from the screen or wall so you realize the size image you want.
(Avoid having bright room lighting or sun light directly on the
screen or wall where youll be projecting the image.)
2. Connect the power cable, remove the lens cap and turn the projector
on. (If no input signal is available, the projector will display a
background image.)
3. Ensure that the projector is square to the screen.
4. Move the projector left or right to center the image horizontally on
the screen. (A)
5. To center the image vertically (B).
(There is approximately 5.5 degrees of up and down angle
adjustment using the adjustable front feet.)
31
(A) Top view
(B) Side view
screen
INSTALLATION32 6. Fine tune the imageÕs vertical position by adjusting the front feet of
the projector.
Adjustment method
     A. Start with the adjustable feet screwed in the locked position.
     B. Screw down the feet until proper angle is reached.
Note: Adjust feet so that lens surface is parallel to the screen.  If you use
the projector with the screen tilted, the picture will be distorted.
7. Adjust the size of the image using the zoom ring lever on the lens.
Note: The set up angle of the projector should not exceed 15 degrees,
otherwise lamp life could decrease dramatically.
screen
Up
Down
ADJUST
ENTER
SELECT
PC CONTROL
RGB OUTPUT
RGB
AUDIO
-AUDIOFocus ring
Zoom ring lever 
						

							33
INSTALLATION34
Moving the projector
When moving the projector, use the carrying case that came with it.
How to store the projector in the carrying case
1. Remove any accessories.
2. Unfold carrying case.
3. Put the projector in the large compartment of the case.
4. Zip up the sides of the case.
1
2
34
5
6
ProjectorZipper
Note book PC
Other Accessories
5. Place notebook computer into carrying case.
6. Store remote control and other accessories in front porch.
* Carry projector carefully. Bumping projector may cause damage.
When restoring the remote
control, place the case on
the functional face to
prevent possible
malfunction. 
						

							     WARNING
¥Only use your projector on a solid, level surface. If the projector falls to the ground, you can be injured and the projector severely damaged.
¥ Do not use the projector where temperatures vary greatly. The projector must be used at temperatures between 41ûF (5ûC) and 95ûF (35ûC).
¥ 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 bottom or the side
of the projector.
Ceiling Installation
Installing your MultiSync LT80 Projector on the ceiling must be done
by a qualified technician. Contact your NEC dealer for more informa-
tion.
Do not attempt to install the projector yourself.
NOTE : Distances may vary ±5%.
35
If your projector is mounted on the ceiling and your image is upside
down, use the ÒMenuÓ and ÒSelectÓ buttons on your projector cabinet
or (s) (t)  buttons on your remote control to correct the orientation.
(See page 60.)
INSTALLATION36
231–300
200–260100–113
80–104
60–78
40–52
24–27
1.2m (3.94ft)
2.1m (6.89ft)
3.15m (10.33t)
4.2m (13.78ft)
5.3m (17.39ft)
10.65m (34.94ft)
12.3m (40.35ft)
19ft (5791.6mm)
15.7ft (4785.2mm)
2.27ft
(691.8mm)
Projection distance and screen size examples
¥ Horizontal projection position Lens centered left to right
¥ Vertical projection position
L
H
Screen size Projection distance L ft.Dimension H inchInches Wide (W) Tele (T) Both W & T
24 3.94ft (1.20m) 2.76Ó (7.0cm)40 5.25 ft (1.60m) 6.89ft (2.10m) 4.8Ó (12.2cm)60 7.87 ft (2.40m) 10.33ft (3.15m) 6.93Ó (17.6cm)
80 10.66ft (3.25m) 13.78ft (4.20m) 9.37Ó (23.8cm)100 13.3ft (4.05m) 17.39ft (5.30m) 11.46Ó (29.1cm)200 26.9ft (8.20m) 34.94ft (10.65) 23.58Ó (59.9cm)
300 40.35ft (12.30m) 35.08Ó (89.1cm) 
						

							PC CONTROLVIDEO IN
S-VIDEOVIDEO L/
MONO · AUDIO · R
AUDIO IN AUDIO OUTRGB IN RGB OUT
c
Document Camera
VCR or Laser Disk Player
Signal cable (supplied)
To mini D-Sub 15-pin connector
on the Projector.
Wiring Diagram
To video, S-video,
and audio inputs on
the projector.
37
IBM VGA or Compatibles Macintosh or Compatibles 
(Desk top type)
Remote Mouse Receiver Remote Mouse Receiver
PS/2 mouse adapter
(supplied)
Remote Control Guideline
1. Plug the serial cable with the remote mouse receiver into your computers mouse port and restart your computer to gain remote mouse
control.
2. When using the remote controls built-in infrared mouse on a laptop computer, the laptops mouse, trackball or trackpad will be disabled.
Disconnect the infrared receiver and restart your computer to regain trackball or trackpad mouse control.
3. If the screen goes blank while using your remote control, it may be the result of the computers screen-saver or power management
software. If you accidentally hit the OFF button on the remote control, wait one full minute and then press the ON button to resume.
Mac ADB adapter
(supplied)
INSTALLATION38
To AC power output
Monitor adapter for Macintosh
(supplied)