NEC Lt180 Portable Projector Users Manual

							Portable Projector
LT180
User’s Manual 
						

							E-i
IMPORTANT INFORMATION
Safety Cautions
Precautions
Please read this manual carefully before using your NEC LT180 Projector and keep the manual handy for future
reference. Your serial number is located on the bottom of your projector. Record it here:
CAUTION
To turn off main power, be sure to remove the plug from power outlet.
The power outlet socket should be installed as near to the equipment as possible, and should be
easily accessible.
CAUTION
TO PREVENT SHOCK, DO NOT OPEN THE CABINET.
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
This symbol warns the user that uninsulated voltage within the unit may be sufficient to cause electrical
shock. Therefore, it is dangerous to make any kind of contact with any part inside of the unit.
This symbol alerts the user that important information concerning the operation and maintenance of
this unit has been provided.
The information should be read carefully to avoid problems.
WARNINGTO PREVENT FIRE OR SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
DO NOT USE THIS UNIT’S PLUG WITH AN EXTENSION CORD OR IN AN OUTLET UNLESS ALL THE
PRONGS CAN BE FULLY INSERTED.
DO NOT OPEN THE CABINET. THERE ARE HIGH-VOLTAGE COMPONENTS INSIDE. ALL SERVICING
MUST BE DONE BY QUALIFIED SERVICE PERSONNEL.
DOC Compliance Notice
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regu-
lations.
Acoustic Noise Information Ordinance-3. GSGV:
The sound pressure level is less than 70 dB (A) according to ISO 3744 or ISO 7779.
WARNING TO CALIFORNIA RESIDENTS:Handling the cables supplied with this product will expose you to lead, a chemical known to the
State of California to cause birth defects or other reproductive harm. Wash hands after handling.
CAUTION
Do not put the projector on its side when the lamp is turned on.
Doing so may cause damage to the projector.
IMPORTANT INFORMATION
Copyright© 2005 by NEC Viewtechnology, Ltd. 
						

							E-ii
RF Interference
WARNING
The Federal Communications Commission does not allow any modifications or changes to the unit
EXCEPT those specified by NEC Solutions (America), Inc. in this manual. Failure to comply with this
government regulation could void your right to operate this equipment. This equipment has been
tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular in-
stallation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio / TV technician for help.
In UK, a BS approved power cable with moulded plug has a Black (five Amps) fuse installed for use with this
equipment. If a power cable is not supplied with this equipment please contact your supplier.
Important Safeguards
These safety instructions are to ensure the long life of your projector and to prevent fire and shock. Please read
them carefully and heed all warnings.
Installation
1. For best results, use your projector in a darkened room.
2. Place the projector on a flat, level surface in a dry area away from dust and moisture.
To avoid premature lamp failure, do not tilt the front of the projector up or down by more than 15˚ from level.
3. Do not place your projector in direct sunlight, near heaters or heat radiating appliances.
4. Exposure to direct sunlight, smoke or steam can harm internal components.
5. Handle your projector carefully. Dropping or jarring can damage internal components.
6. Do not place heavy objects on top of the projector.
7. If you wish to have the projector installed on the ceiling:
a. Do not attempt to install the projector yourself.
b. The projector must be installed by qualified technicians in order to ensure proper operation and reduce
the risk of bodily injury.
c. In addition, the ceiling must be strong enough to support the projector and the installation must be in
accordance with any local building codes.
d. Please consult your dealer for more information.
IMPORTANT INFORMATION 
						

							E-iii
Fire and Shock Precautions
1. Ensure that there is sufficient ventilation and that vents are unobstructed to prevent the build-up of heat
inside your projector. Allow at least 4 inches (10 cm) of space between your projector and a wall.
2. Prevent foreign objects such as paper clips and bits of paper from falling into your projector.
Do not attempt to retrieve any objects that might fall into your projector. Do not insert any metal objects such
as a wire or screwdriver into your projector. If something should fall into your projector, disconnect it immedi-
ately and have the object removed by a qualified service personnel.
3. Do not place any liquids on top of your projector.
4. Do not look into the lens while the projector is on. Serious damage to your eyes could result.
5. Keep any items such as magnifying glass out of the light path of the projector. The light being projected from
the lens is extensive, therefore any kind of abnormal objects that can redirect light coming out of the lens,
can cause unpredictable outcome such as fire or injury to the eyes.
6. Do not cover the lens with the supplied lens cap or equivalent while the projector is on. Doing so can lead to
melting of the cap and possibly burning your hands due to the heat emitted from the light output.
7. Do not place any objects, which are easily affected by heat, in front of the projector lens or a projector
exhaust vent.
Doing so could lead to the object melting or getting your hands burned from the heat that is emitted from the
light output and exhaust.
8. The projector is designed to operate on a power supply of 100-240 V 50/60 Hz AC. Ensure that your power
supply fits this requirement before attempting to use your projector.
9. Handle the power cable carefully and avoid excessive bending.
A damaged cord can cause electric shock or fire.
10. If the projector is not to be used for an extended period of time, disconnect the plug from the power outlet.
11. Do not touch the power plug during a thunderstorm. Doing so can cause electrical shock or fire.
12. Do not handle the power plug with wet hands.
CAUTION
1. Do not try to touch the ventilation outlet on the right and rear side (when seen from the front) as it can
become heated while the projector is turned on.
2. Do not use the tilt-foot for purposes other than originally intended. Misuses such as gripping the tilt-foot or
hanging on the wall can cause damage to the projector.
Before putting the projector in the soft case, be sure to retract the feet. Failure to do so may cause damage
to the projector.
3. When carrying the projector, heed the following:
•Ensure that the power cable and any other cables are disconnected before moving the projector.
•Cover the lens with the supplied lens cap so as not to scratch the lens surface.
4. Do not send the projector in the soft case by parcel delivery service or cargo shipment. The projector inside
the soft case could be damaged.
5. Select “High” in the Fan mode if you continue to use the projector for consecutive days. (From the menu,
select [Advanced] → [Fan Mode] → [High].)
6. Do not unplug the power cable from the wall outlet under any one of the following circumstances.
Doing so can cause damage to the projector:
* While the projector is turned on.
* While the cooling fans are running. (The cooling fans continue to work for 60 seconds after the projector
is turned off).
7. If you accidentally turn off the main power by disconnecting the power cable or press the main power switch
during cooling down, wait 10 minutes and then turn on the projector to resume. This is to protect the lamp.
IMPORTANT INFORMATION 
						

							E-iv
Lamp Replacement
•To replace the lamp, follow all instructions provided on page E-44.
•Be sure to replace the lamp when the message The lamp has reached the end of its usable life. Please
replace the lamp. appears. If you continue to use the lamp after the lamp has reached the end of its usable
life, the lamp bulb may shatter, and pieces of glass may be scattered in the lamp case. Do not touch them as
the pieces of glass may cause injury.
If this happens, contact your dealer for lamp replacement.
•Allow a minimum of 60 seconds to elapse after turning off the projector. Then turn off the main power switch,
disconnect the power cable and allow 60 minutes to cool the projector before replacing the lamp.
What’s 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 Projector.
IMPORTANT INFORMATION
Lens cap
CONTROL
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 IN AU
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S-VIDEO INR Cr/Pr Cb/Pb
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L/m
ono
AUD
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STATUS
POWER
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AC
 IN
Projector
Remote control (7N900601) Batteries (AAA 
 2)
Power cable
(US: 7N080213)
(EU: 7N080007)RGB/VGA signal cable
(7N520032)
12Quick
Setup
GuideImportant 
Information
For North America only
Registration card
Limited warranty
For Europe only
Guarantee policy
Band (use for bundling cables)
(24B17871)
Soft case
(24BS7471)
Shoulder belt
Quick Setup Guide
Important Information
CD-ROM
User’s manual 
						

							E-v
TABLE OF CONTENTS
IMPORTANT INFORMATION ................................................................................................... E-iSafety Cautions .......................................................................................................................................................................................... E-i
What’s in the Box? .................................................................................................................................................................................... E-iv
1. INTRODUCTION ............................................................................................................. E-1Introduction to the Projector ..................................................................................................................................................................... E-1
Part Names of the Projector ...................................................................................................................................................................... E-3
Top Features .................................................................................................................................................................................... E-4
Terminal Panel Features .................................................................................................................................................................. E-5
Part Names of the Remote Control ........................................................................................................................................................... E-6
2. INSTALLATION AND CONNECTIONS ..................................................................................... E-10Setting Up the Screen and the Projector ................................................................................................................................................. E-11
Selecting a Location ...................................................................................................................................................................... E-11
Throw Distance and Screen Size ................................................................................................................................................... E-12
Making Connections ............................................................................................................................................................................... E-14
Connecting Your PC or Macintosh Computer ................................................................................................................................ E-14
To connect SCART output (RGB) ................................................................................................................................................... E-15
Connecting an External Monitor .................................................................................................................................................... E-16
Connecting Your DVD Player ......................................................................................................................................................... E-17
Connecting Your VCR or Laser Disc Player ................................................................................................................................... E-18
Connecting the Supplied Power Cable ........................................................................................................................................... E-19
3. PROJECTING AN IMAGE (BASIC OPERATION) .......................................................................... E-20Turning on the Projector ......................................................................................................................................................................... E-20
Selecting a Source .................................................................................................................................................................................. E-22
Adjusting the Picture Size and Position .................................................................................................................................................. E-22
Correcting the Vertical Keystone Distortion ............................................................................................................................................ E-25
Optimizing an RGB Image Automatically ................................................................................................................................................. E-26
Turning Up or Down Volume ................................................................................................................................................................... E-26
Turning off the Projector ......................................................................................................................................................................... E-27
After Use ................................................................................................................................................................................................. E-28
4. CONVENIENT FEATURES ................................................................................................. E-29Turning Off the Image and Sound ........................................................................................................................................................... E-29
Freezing a Picture ................................................................................................................................................................................... E-29
Reducing Video Noise (Noise Reduction) ............................................................................................................................................... E-29
Getting the Information on Lamp Usage and Projector Usage ................................................................................................................ E-30
5. USING ON-SCREEN MENU ................................................................................................ E-31Using the Menus ..................................................................................................................................................................................... E-31
List of Menu Items .................................................................................................................................................................................. E-33
Menu Descriptions & Functions .............................................................................................................................................................. E-34
Picture ........................................................................................................................................................................................... E-34
Adjustment .................................................................................................................................................................................... E-34
Image ............................................................................................................................................................................................ E-35
Setup ............................................................................................................................................................................................. E-37
Advanced ....................................................................................................................................................................................... E-38
Information ................................................................................................................................................................................... E-42
Reset ............................................................................................................................................................................................. E-43
6. MAINTENANCE ............................................................................................................ E-44Replacing the Lamp ................................................................................................................................................................................ E-44
Cleaning the Cabinet and the Lens .......................................................................................................................................................... E-47
7. TROUBLESHOOTING ....................................................................................................... E-48
8. SPECIFICATIONS .......................................................................................................... E-52
TABLE OF CONTENTS 
						

							E-vi
TABLE OF CONTENTS
9. APPENDIX ................................................................................................................. E-54Cabinet Dimensions ................................................................................................................................................................................ E-54
Pin Assignments of COMPUTER IN (D-Sub RGB) Connector ................................................................................................................. E-55
PC Control Codes and Cable Connection ................................................................................................................................................ E-56
Compatible Input Signal List ................................................................................................................................................................... E-57
Troubleshooting Check List ..................................................................................................................................................................... E-58
TravelCare Guide ..................................................................................................................................................................................... E-60 
						

							E-1
1. INTRODUCTION
1. INTRODUCTION
Introduction to the ProjectorThis section introduces you to your new NEC LT180 Projector and describes its features and controls.
Congratulations on Your Purchase of The LT180 Projector
The LT180 is one of the very best projectors available today. The LT180 enables you to project precise images
up to 200 inches (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 on the LT180 projector:
•4:3 native screen display
•Exceptionally quiet – as low as 34dB fan noise in Eco-Mode
•High resolution images – 1024

768 display
•HDTV (1080i, 720p) and SDTV (576p, 480p) compatibility
•Adjustable rear foot for enhanced projector placement and alignment to the screen
•Eco-Mode™ technology – increases lamp life by up to 50% and reduces noise level to 
						

							E-2
1. INTRODUCTION
About this users manual
The fastest way to get started is to take your time and do everything right the first time. Take a few minutes now
to review the users manual. This may save you time later on. At the beginning of each section of the manual
youll find an overview. If the section doesnt apply, you can skip it.
•Digital Light Processing and DLP are trademarks of Texas Instruments.
•IBM is a trademark or registered trademark of International Business Machines Corporation.
•Mac and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries.
•Other product and company names mentioned in this user’s manual may be the trademarks or registered
trademarks of their respective holders. 
						

							E-3
Part Names of the Projector
1. INTRODUCTION
CONTROL
COMPONENT INVIDEO IN
AUDIO IN
S-VIDEO IN
R Cr/Pr Cb/Pb
Y
L/mono
AUDIO IN
COMPUTER INMONITOR OUT
S
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C
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LAMP
STATUS
POWER
ON/STAND BY
AUTO
ADJ.
AC IN
SELECT
L
A
M
P
S
T
A
T
U
S
P
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W
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/S
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A
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B
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.SOURCE
* 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. Remote Sensor (See page E-9)Controls (See page E-4)
Speaker
Ventilation (outlet)
Terminal Panel
(See page E-5)
AC Input
Connect the supplied power
cables two-pin plug here, and
plug the other end into an ac-
tive wall outlet. (See page E-19)
Main Power Switch
When you plug the supplied power cable into an active wall outlet
and turn on the Main Power, the POWER indicator turns orange and
the projector is in standby mode. (See page E-20) Ventilation (inlet)
Adjustable Tilt Foot
(See page E-24)
Adjustable Tilt
Foot Lever
(See page E-24)
Lens Cap
Lens
Focus ring
(See page E-25)
Zoom lever
(See page E-24)
Lamp Cover
(See page E-45)
Lamp Cover Screw
(See page E-45)
Ventilation (inlet)
Built-in Security Slot (  ) *
Adjustable Rear Foot
(See page E-23)