NEC Lt75z Micro-portable Projector Users Manual

							E-5
1. INTRODUCTION
Introduction to the LT75Z Projector ............................... E-6
Getting Started ................................................................ E-6
What’s in the Box ............................................................ E-7
Getting to Know Your LT75Z Projector .......................... E-8
Front / Side Features ............................................................... E-8
Attaching the lens cap ............................................................. E-8
Rear / Side Features ................................................................ E-9
Top Features .......................................................................... E-10
Terminal Panel Features ......................................................... E-11
Remote Control Features ....................................................... E-12
Remote Control Battery Installation ................................. E-13
Operating Range ............................................................ E-13
Remote Control Precautions ........................................... E-13
Using Remote Mouse Receiver ....................................... E-14
Switching Operation Mode between
  Computer and Projector ............................................... E-15
2. INSTALLATION
Setting Up Your Projector ............................................. E-16
Selecting a Location ..................................................... E-16
Screen and Projection Distance ................................... E-16
Distance Chart .............................................................. E-17
Reflecting the Image ..................................................... E-17
Wiring Diagram ............................................................. E-18
Connecting Your PC or Macintosh Computer ........................ E-19
Connecting Your DVD Player ................................................. E-20
Connecting Your VCR or Laser Disc Player ............................ E-21
About Startup screen (Menu Language Select screen) ........... E-22
3. OPERATION
Connecting the Power Cable and Turn on the Projector..... E-23
Adjusting the Image Size and the Focus ..................... E-24
Adjusting the Image Using Auto Adjust ....................... E-25
Enlarging and Moving a Picture ................................... E-26
Using the Menus ........................................................... E-26
Menu Tree ...................................................................... E-27
Menu Elements ............................................................. E-28
Menu Descriptions & Functions ................................... E-29
Source Select ................................................................ E-29
RGB/Video/S-VideoPicture ........................................................................... E-29Brightness/Contrast/Color/Hue/SharpnessVolume ........................................................................... E-29
Image Options ............................................................... E-29
Keystone ............................................................................... E-29
Lamp Mode ........................................................................... E-30
Aspect Ratio .......................................................................... E-30
Position/Clock ....................................................................... E-31
Resolution ............................................................................. E-31
Video Filter ............................................................................. E-31
Factory Default ...................................................................... E-31
Color Management ....................................................... E-32Gamma Correction ................................................................ E-32
White Balance ....................................................................... E-32
Projector Options .......................................................... E-32Menu ..................................................................................... E-32
Menu Mode .................................................................... E-32
Basic Menu/Advanced Menu
Language ....................................................................... E-32
Source Display ............................................................... E-32
No Input Display ............................................................. E-32
Volume Bar ..................................................................... E-32
Keystone Bar .................................................................. E-33
Menu Display Time ......................................................... E-33
TABLE OF CONTENTS
Setup ..................................................................................... E-33
Orientation ...................................................................... E-33
Cinema Position ............................................................. E-33
Background ................................................................... E-33
Signal Select RGB .......................................................... E-33
Signal Select Video/S-Video ........................................... E-33
Auto Adjust .................................................................... E-34
Auto Start ....................................................................... E-34
Power Management ....................................................... E-34
Power Off Confirmation .................................................. E-34
Keystone Save ............................................................... E-34
White Segment ............................................................... E-34
Default Source Select ..................................................... E-34
Communication Speed ................................................... E-34
Control Panel Key Lock .................................................. E-34
Clear Lamp Hour Meter .................................................. E-35
Information .................................................................... E-35
4. MAINTENANCE
Replacing the Lamp ...................................................... E-36
5. TROUBLESHOOTING
Power/Status Light Messages ..................................... E-37
Common Problems & Solutions ................................... E-37
6. SPECIFICATIONS
Optical/Electrical/Mechanical ...................................... E-38
Cabinet Dimensions ...................................................... E-39
D-Sub Pin Assignments ................................................ E-40
Compatible Input Signal List ........................................ E-41
PC Control Codes ......................................................... E-42
Cable Connection ......................................................... E-42 
						

							E-6
Introduction to the LT75Z Projector
This section introduces you to your new LT75Z Projector and
describes the features and controls.
Congratulations on Your Purchase of The LT75Z
Projector
The LT75Z is one of the very best projectors available today.
The LT75Z enables you to project precise images up to 200
inches across (measured diagonally) from your PC or
Macintosh computer (desktop or notebook), VCR, DVD player,
document camera or a laser disc player.
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 permanently mounted on a ceiling*
1. The
remote control can be used wirelessly.
Features you’ll enjoy:
•Simple set up and operation.
•A high-performance 135 watt NSH lamp.
•The supplied wireless remote control that operates the pro-
jector from the front or rear.
•The image can be projected between 30 and 200 inches
(measured diagonally).
•Keystone correction allows you to correct trapezoidal distor-
tion so that the image is square.
•You can choose between video modes depending on your
source:
normal for a typical picture, natural for true color repro-
duction.
•An image can be projected from in front or behind a screen,
and the projector can even be installed on the ceiling.
•NEC Technologies’ exclusive Advanced AccuBlend intelli-
gent pixel blending technology - an extremely accurate im-
age compression technology - offers a crisp image with
UXGA (1600
1200) resolution*
2.
•Supports most IBM VGA, SVGA, XGA*2 , SXGA*2, UXGA*2
Macintosh, component signal (YCbCr / YPbPr) or any other
RGB signals within a horizontal frequency range of 15 to
100 kHz and a vertical frequency range of 50 to 120Hz. This
includes NTSC, PAL, PAL-N, PAL-M, PAL60, SECAM and
NTSC4.43 standard video signals.
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-M: TV standard used in Brazil.
PAL-N: TV standard used in Argentina, Paraguay and Uruguay.
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.
•You can use the supplied wireless remote control and re-
mote mouse receiver to operate your PC mouse wirelessly
from across the room.
The remote mouse receiver supports almost any PC using
a USB connection or the supplied USB-to-PS/2 adapter.
•You can control the projector with a PC using the PC Con-
trol port.
•The contemporary cabinet design is light, compact, easy to
carry, and complements any office, boardroom or audito-
rium.
1. INTRODUCTION
Getting Started
The fastest way to get started is to take your time and do ev-
erything right the first time. Take a few minutes now to review
the user’s manual. This may save you time later on. At the
beginning of each section of the manual you’ll find an over-
view. If the section doesn’t apply, you can skip it. 
						

							E-7
Whats in the Box?
Make sure your box contains everything listed. If any pieces are missing, contact your dealer.
Please save the original box and packing materials if you ever need to ship your LT75Z Projector.
MENUENTERCANCEL
SELECT
AUTO ADJUST
STATUS
POWERON /
STAND BYSOURCE
Quick
Connect
Guide
Users
Manual
NEC LT75Z Projector
Lens cap
Soft carrying caseRemote control
Batteries
String and rivet
Power cable
RGB signal cable
SELECTEMNUTERNENCEACL
OFF
ONVIDEOS
-
VID
E
ORGBPOWER
PJ
MAGNIFYVOLUME HELPFREEZEPIC-MUTE
AU
T
O AD
J.
Remote mouse receiver
PS/2 adapter 
						

							E-8
MENUENTERCANCEL
SELECT
AUTO ADJUST
STATUS
POWERON /
STAND BYSOURCE
C
Getting to Know Your LT75Z Projector
Controls
Front/Side Features
Zoom Ring
Lens Cap Remote SensorAdjustable Tilt Foot ButtonVentilation (inlet)
Lens Focus Ring Adjustable Tilt Foot
Attaching the lens cap to the bottom with the supplied string and rivet
1. Thread the string through the hole on the lens cap and then tie a knot in the string.
2. Use the rivet to attach the string to the bottom of the projector. 
						

							E-9
MENUENTERCANCEL
SELECT
AUTO ADJUST
STATUS
POW
ERON /
STAND BYSOURCE
V
ID
E
OS-V
ID
E
O
R
G
B
A
C
 INA
U
D
IO
PC
 C
O
N
TR
O
L
Rear/Side Features
AC Input
Slot for Kensington MicroSaver
Security System Monaural Speaker (1W)
Remote Sensor
Ventilation (outlet)
Heated air is exhausted from here.
Spacer (black rubber)To fine-adjust the height of the rear
foot, remove the spacer and rotate
the rear foot to the desired height.Rear FootRotate to fine-adjust horizontally position
TerminalsVentilation (inlet)
Bottom
Lamp cover
Lamp cover screwVentilation (inlet)
Rear Foot
(not adjustable)
NOTE: The projector has an internal temperature sensor. The sensor controls the speed of the fan to keep constant temperature in the inside.
When the internal temperature rises, the built-in fan automatically runs at a high speed (high-speed mode).
During this time, the sound of exhaust may be heard. This is not a malfunction.
Spacer (black rubber)Rear Foot 
						

							E-10 1. Power Button (ON / STAND BY)
Use this button to turn the power on and off when the power is
supplied and the projector is in standby mode.
NOTE: To turn off the projector, press and hold this button for a mini-mum of two seconds.
2. Status Indicator
When this is lit red continually, its warning you that the projec-
tion lamp has exceeded 1000 hours (1500 houres in Eco mode)
of service. After this light appears, it is advisable to replace the
projection lamp as soon as possible. (See page E-36). In addi-
tion the message 
The lamp has reached the end of its us-
able life. Please replace 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-37 for more
details.
3. Power Indicator (
)
When this indicator is green, the projector is on; when the indi-
cator is orange, it is in standby mode.
4. Source Button
Use this button to select a video source such as a PC, VCR or
DVD player.
Each time this button is pressed, the input source will change
as follows:
RGB      Video      S-Video
If no input signal is present, the input will be skipped.
Top Features
5. 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 cor-
rectly or take time to switch between sources.
6. Enter Button
Executes your menu selection and activates items selected
from the menu.
7. Cancel Button
Press this button to close the menu.
8. Select (

 ) Buttons

: 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.
9. Menu Button
Displays the menu.
MENU
ENTER
CANCEL
SELECT
AUTO ADJUST
STATUS
POWERON /
STAND BYSOURCE
VIDEOS-VIDEO
RGB
AUDIO
C CONTROL
1
2
4
59
8
7
6
3 
						

							E-11
MENU
ENTER
CANCEL
SELECT
AUTO ADJUST
STATUS
POWERON /
STAND BYSOURCE
VIDEOS-VIDEO
RGB
AC IN
AUDIO
PC CONTROL
2
3
4
5
6
7
1
Terminal Panel Features
1. 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 com-
munication protocol to control the projector. The NEC optional
serial cable is required to use this port.
If you are writing your own program, typical PC control codes
are on page E-42.
A cap is put on the port at the factory. Remove the cap when
using the port.
2. 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.
3. Video Input (RCA)
Connect a VCR, DVD player, laser disc player, or document
camera here to project video.
4. 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 thanthe traditional composite video format.
5. RGB Input/Component Input Connector
(Mini D-Sub 15 pin)
Connect your PC or other RGB equipment such as IBM or
compatible computers. Use the supplied RGB cable to con-
nect to a PC. Or connect a Macintosh computer here using the
supplied RGB cable. This also serves as a component input
connector that allows you to connect a component video out-
put of component equipment such as a DVD player.6. 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.
7. 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-12Remote Control
OFFON
VIDEOS-VIDEORGBPOWER
PJ
MAGNIFY
VOLUME
HELP
SELECT
EMNU
TERNENCEACL
AUTO ADJ.
FREEZEPIC-MUTE
1
3 4
5
78
11
14 6
9
10
1512
13
2
17
16
18
Remote Control Features
NOTE: If you are using a Macintosh computer, you can click either theright-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 mal-
function, rather it is a feature used to prolong battery power. To cancel
this feature, press any one of the buttons other than the SELECT but-
ton.
1. Infrared Transmitter
Direct the remote control toward the remote sensor on the pro-
jector cabinet.
2. LED
Flashes when any button is pressed.
3. Power ON Button
If the main power is applied, you can use this button to turn
your projector on.
4. Power OFF Button
If the main power is applied, you can use this button to turn
your projector off.
NOTE: To turn off the projector, press and hold the POWER OFF but-ton for a minimum of two seconds.
5. VIDEO Button
Press this button to select a video source from a VCR, DVD
player, laser disc player or document camera.
6. S-VIDEO Button
Press this button to select an S-Video source from a VCR.
7. RGB Button
Press this button to select an RGB source from computer or
component equipment connected to your RGB port.
8. 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 cor-
rectly, or in some cases it may take some time for a source to
switch between sources.
9. Menu Button
Displays the menu.
10. Select 

  (mouse) Buttons
When you are in the Computer mode, these buttons work as a
computer 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.
11. 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.12. CANCEL 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
“Cancel “ button on the cabinet.
13. 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,
Help and Magnify 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.
14. HELP Button
Provides information about the current signal and the status of
the projector.
15. Magnify Button
Use this button to adjust the image size up to 400%.
16. Freeze Button
This button will freeze a picture. Press again to resume mo-
tion.
17. 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.
18. Volume Button
Press (+) to increase the volume and (–) to decrease it.
NOTE: The default is the Computer mode, which allows you to use the
Select, Cancel, and Enter buttons as your computer mouse. When the
Power ON/OFF, MENU, HELP and MAGNIFY 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
Projector mode is canceled. 
						

							E-13
Remote Control Battery Installation
1. Push to open the battery cover.
2. Remove both old batteries and install new ones (AA). En-
sure that you have the batteries’ polarity (+/–) aligned cor-
rectly.
3. Put the battery cover back on.
Do not mix different types of batteries or new and old bat-
teries.
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.
Note on Remote Control Operation:
Pressing and holding the Select (

 )/ Mouse button while
installing new batteries may cause malfunction or no opera-
tion.
Should this happen, remove the batteries and then install them
again without touching the Select/Mouse button.
Operating Range
7m7m
30˚
30˚
30˚
30˚
30˚
30˚30˚
30˚    7m 7m
(22 feet)(22 feet)
(22 feet) (22 feet) 
						

							E-14
Using Remote Mouse Receiver
The remote mouse receiver enables you to operate your computer’s 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
If you wish to use the remote mouse function, connect the mouse receiver and computer.
The mouse receiver can be connected directly to the computer using the USB terminal.
To connect it to the computer using the mouse (PS/2) terminal, do so using the PS/2 adapter.
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.
When connecting using the USB terminal
For PC, the mouse receiver can only be used with a Windows
98, Windows ME or Windows 2000 operating system.
NOTE:
•Wait at least 5 seconds after disconnecting the mouse receiver be-
fore reconnecting it and vice versa. The computer may not identify
the mouse receiver if it is repeatedly connected and disconnected
in rapid intervals.
•When using the PS/2 adapter, be sure to attach the PS/2 adapter to
the remote mouse receiver first. Do not connect or disconnect the
USB connector of the remote mouse receiver with the PS/2 adapter
on the mouse (PS/2) port of your PC. Doing so can result in your
PC failing to detect the remote mouse receiver.
7m
30˚
30˚
Computer
Remote mouse receiver
To USB port of PC or
Macintosh
To Mouse (PS/2) port
of PC
Attach the supplied PS/2 Adapter
When operating a computer via the remote mouse receiver
Remote sensor on the remote
mouse receiver