NEC Lt80 Projector Users Manual

							Part No.  78409061
Printed in Japan
Ultra-Portable Projector
Ultra-Portable Projector
Projector
UserÕs Manual
NEC Technologies, Inc.
1250 N. Arlington Heights Road,Suite 500
Itasca, Illinois 60143-1248
MultiSync
¨
 LT 80
ª
NEC Technologies 
						

							RF Interference
WARNING
The Federal Communications Commission does not allow any
modifications or changes to the unit EXCEPT those specified by
NEC Technologies in this manual. Failure to comply with this
government regulation could void your right to operate this equip-
ment.
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a commercial 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. Operation of this
equipment in a residential area is likely to cause harmful interfer-
ence in which case the user will be required to correct the interfer-
ence at their own expense.
DOC Compliance Notice
This Class A digital apparatus meets all requirements of the Canadian Interfer-
ence-Causing Equipment Regulations.
WARNING
TO PREVENT FIRE OR SHOCK, DO NOT EXPOSE THIS UNIT
TO RAIN OR MOISTURE. DO NOT USE THIS UNITÕS
GROUNDED PLUG WITH AN EXTENSION CORD OR IN AN
OUTLET UNLESS ALL THREE PRONGS CAN BE FULLY IN-
SERTED. DO NOT OPEN THE CABINET. THERE ARE HIGH-
VOLTAGE COMPONENTS INSIDE. ALL SERVICING MUST BE
DONE BY QUALIFIED NEC SERVICE PERSONNEL.
2
Precautions
Please read this manual carefully before using your NEC MultiSync
LT80 Projector and keep the manual handy for future reference.
Your serial number is located beneath the main power switch on the back of
your MultiSync LT80.  Record it here:
IMPORTANT INFORMATION
CAUTION
LASER RADIATION-
DO NOT STARE INTO BEAM
WAVE LENGTH: 670 nm
MAX. OUTPUT: 1 mW
CLASS II LASER PRODUCT
CAUTION
TO PREVENT SHOCK, DO NOT OPEN THE CABI-
NET. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED NEC 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 informa-
tion concerning the operation and maintenance of
this unit has been provided. The information should
be read carefully to avoid problems.
1 
						

							Cleaning
1. Unplug the projector before cleaning.
2. Clean the cabinet periodically with a damp cloth. If heavily soiled, use a mild
detergent. Never use strong detergents or solvents such as alcohol or thinner.
3. Use a blower or lens paper to clean the lens, and be careful not to scratch or
mar the lens.
Lamp Replacement
¥ Be sure to replace the lamp when the Status light comes on. If you continue
to use the lamp after 1000 hours of use, 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 NEC dealer for lamp
replacement.
¥ Allow a minimum of ONE minute to elapse between turning the lamp off and
on. High voltage is applied to the lamp immediately when the power is turned
on. Therefore turning the power off and quickly back on may shorten the life
of your lamp and result in damage to your projector.
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 3 inches
(10cm) 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 project. If something should fall into your projector, disconnect it
immediately and have the object removed by a qualified NEC service person.
3. Do not place any liquids on top of your projector.
¥ Do not look into the lens while the projector is on. Serious
damage to your eyes could result.
¥ Do not look into the laser pointer while it is on and do not point
the laser beam at another person. Serious injury could result.
4
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.
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 installing the projector on the ceiling:
a. The ceiling must be strong enough to support the projector and the
installation must be in accordance with any local building codes.
b. The projector must be installed by qualified NEC service personnel.
Power Supply
1. The projector is designed to operate on a power supply of 100-120 or 220-240
V 50/60 Hz AC. Ensure that your power supply fits this requirement before
attempting to use your projector.
2. Handle the power cable carefully and avoid excessive bending. A damaged
cord can cause electric shock or fire.
3. If the projector is not to be used for an extended period of time, disconnect the
plug from the power outlet.
3 
						

							Ce symbole a pour but de prŽvenir lÕutilisateur de la
prŽsence dÕune tension dangereuse, non isolŽe se
trouvant ˆ lÕintŽrieur de lÕappareil. Elle est dÕune
intensitŽ suffisante pour constituer un risque

lÕintŽrieur de cet appareil.
Ce symbole a pour but de prŽvenir lÕutilisateur de la
prŽsence dÕimportantes instructions concernant
lÕentretien et le fonctionnement de cet appareil. Par

ATTENTION
RISQUE DÕELECTROCUTION NE PAS OUVRIR
5
ATTENTION
RAYONNEMENT LASER NE PAS
REGARDER DANS LE FAISCEAU
LONGUEUR DÕONDE: 670 nm
MAX. SORTIE: 1 mW
APPREIL A LASER DE CLASSE 2
Importantes prŽcautions de sŽcuritŽ
Les points suivants sont des prŽcautions de sŽcuritŽ importantes destinŽes ˆ
garantir une longue durŽe de service du projecteur et afin dÕŽviter un incendie
et des risques dÕŽlectrocution. SÕassurer de lire attentivement ces prŽcautions de
sŽcuritŽ et respecter tous les avertissements dŽcrits ci-dessous.
Installation
1. 
2. Placer le projecteur sur une surface ˆ niveau et dans un endroit sec exempt de

3. 
dÕautres appareils de chauffage.
AVERTISSEMENT
AFIN DE REDUIRE LES RISQUES DÕINCENDIE OU
DÕELECTROCUTION, NE PAS EXPOSER CET APPAREIL A LA
PLUIE OU A LÕHUMIDITE. AUSSI, NE PAS UTILISER LA FICHE
POLARISEE AVEC UN PROLONGATEUR OU UNE AUTRE
PRISE DE COURANT SAUF SI CES LAMES PEUVENT ETRE
INSEREES A FOND. NE PAS OUVRIR LE COFFRET, DES
COMPOSANTES HAUTE TENSION SE TROUVENT A
LÕINTERIEUR. LAISSER A UN PERSONNEL QUALIFIE LE
SOIN DE REPARER CET APPAREIL.
DOC avis de conformation
DOC avis de conformation
Cet appareil numŽrique de la classe A respecte toutes les exigences du

6 
						

							4. La fumŽe, la vapeur et lÕexposition aux rayons directs du soleil risquent de
dŽtŽriorer sŽrieusement les composantes internes.
5. Eviter des manipulations brusques lors du dŽplacement du projecteur, car un
choc violent pourrait endommager les composantes internes.
6. Ne pas deposer dÕobjets lourds sur le dessus du projecteur.
7. Lors de lÕinstallation du projecteur au plafond, respecter les instructions
suivantes.
a. 

b. 
Alimentation
1. 
60Hz. SÕassurer que la tension dÕalimentation locale satisfait cette exigence
avant dÕutiliser le projecteur.
2. Manipuler le c‰ble dÕalimentation avec prŽcaution et Žviter de le plier
excessivement. Un cordon endommagŽ risque de provoquer une
Žlectrocution ou un incendie.3. Si le projecteur nÕest pas utilisŽ pendant une pŽriode prolongŽe, retirer la fiche
de la prise secteur.
Nettoyage
1. DŽbrancher le projecteur de la prise dÕalimentation avant le nettoyage.
2. 
tenaces, utiliser une solution dÕun dŽtergent doux. Ne jamais utiliser de
dŽtergents puissants ou des solvants, tel que lÕalcool ou un diluant pour
nettoyer le projecteur.
3. Utiliser un appareil diffuseur chauffant ou du papier de nettoyage de lentille
disponible dans le commerce pour nettoyer la lentille.
Ne pas frapper ou rayer la surface de la lentille, car des dŽfauts risquent de se
produire sur la surface de la lentille.
7
Remplacement de la lampe
¥ Assurez-vous de bien remplacer la lampe lorsque le voyant dÕusure


ŽparpillŽes dans le compartiment de la lampe. Ne  les touchez pas car elles
peuvent vous blesser. Dans ce cas, contactez votre revendeur NEC afin de
procŽder au remplacement de la lampe.
¥ 
rallumer. Une haute tension est immŽdiatement appliquŽe ˆ la lampe quand
celle-ci est mise sous tension. Par consŽquent, Žteindre, puis tout de suite
rallumer peut abrŽger la vie de votre lampe et endommager votre projecteur
DLP.
PrŽcautions pour Žviter un incendie ou
une Žlectrocution
1. 
de chaleur ˆ lÕintŽrieur du projecteur. SÕassurer que les trous de ventilation ne
sont pas obstruŽs. Laisser un espace dÕau moins 10 cm (quatre pouces) entre
le projecteur et les murs.2. Eviter que des objets Žtrangers, des agrafes, des clous et du papier, par


tourne-vis, par exemple ˆ lÕintŽrieur du projecteur. Si un objet tombe ˆ
lÕintŽrieur du projecteur, le dŽbrancher immŽdiatement et contacter un
dŽpanneur qualifiŽ pour retirer lÕobjet.
3. Ne pas placer des liquides sur le dessus du projecteur.
¥ Ne regardez pas ˆ lÕintŽrieur de lÕobjectif lorsque le projecteur
est en marche. Vous risquez de vous blesser gravement aux
yeux.
¥ 
est en marche et ne dirigez pas le rayon laser sur une autre
personne. Vous risquez de provoquer ue blessure grave.
8 
						

							NEC MultiSync¨ Projector
Products
NEC Technologies, Inc. (hereafter NECTECH) warrants this product to be free
from defects in material and workmanship under the following terms.
HOW LONG IS THE WARRANTY?
Parts and labor are warranted for (2) two years from the date of the first customer
purchase. The lamp is warranted for 1000 hours of operating time or six months,
whichever comes first.
WHO IS PROTECTED?
This warranty may be enforced only by the first purchaser.
WHAT IS COVERED AND WHAT IS NOT COVERED
Except as specified below, this warranty covers all defects in material or
workmanship in this product. The following are not covered by the warranty:
1. Any product which is not distributed in the U.S.A., Canada and Mexico by
NECTECH or which is not purchased in the U.S.A., Canada or Mexico from
an authorized NECTECH dealer. If you are uncertain as to whether a dealer
is authorized, please contact NECTECH at 800-836-0655.2. Any product on which the serial number has been defaced, modified or
removed.
3. Damage, deterioration or malfunction resulting from:
a. Accident, misuse, abuse, neglect, fire, water, lightning or other acts of
nature, unauthorized product modification, or failure to follow instruc-
tions supplied with the product.
b. Repair or attempted repair by anyone not authorized by NECTECH.
c. Any shipment of the product (claims must be presented to the carrier).
d. Removal or installation of the product.
e. Any other cause which does not relate to a product defect.
4. Cartons, carrying cases, batteries, external cabinets, magnetic tapes, or any
accessories used in connection with the product.
WHAT WE WILL PAY FOR AND WHAT WE WILL NOT
PAY FOR
We will pay labor and material expenses for covered items. But we will not pay
for the following:
1. Removal or installation charges.
LIMITED WARRANTY9
2. Costs of initial technical adjustments (set-up), including adjustment of user
controls. These costs are the responsibility of the NECTECH dealer from
whom the product was purchased.
3. Payment of shipping charges.
HOW YOU CAN GET WARRANTY SERVICE
1. To obtain service on your product, consult the dealer from whom you
purchased the product.
2. Whenever warranty service is required, the original dated invoice (or a copy)
must be presented as proof of warranty coverage. Please be prepared to
describe or demonstrate the problem to your dealer.
3. For the name of the nearest NECTECH authorized service center, call
NECTECH at 800-836-0655.
LIMITATION OF IMPLIED WARRANTIES
ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MER-
CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
LIMITED IN DURATION TO THE LENGTH OF THIS WARRANTY.
EXCLUSION OF DAMAGES
NECTECHÕS LIABILITY FOR ANY DEFECTIVE PRODUCT IS LIMITED
TO THE REPAIR OR REPLACEMENT OF THE PRODUCT AT OUR
OPTION. NECTECH SHALL NOT BE LIABLE FOR:1. DAMAGE TO OTHER PROPERTY CAUSED BY ANY DEFECTS IN
THIS PRODUCT, DAMAGES BASED UPON INCONVENIENCE, LOSS
OF USE OF THE PRODUCT, LOSS OF TIME, COMMERCIAL LOSS;
OR
2. ANY OTHER DAMAGES, WHETHER INCIDENTAL, CONSEQUEN-
TIAL OR OTHERWISE. SOME STATES DO NOT ALLOW LIMITA-
TIONS ON HOW LONG AN IMPLIED WARRANTY LASTS AND/OR
DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDEN-
TAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITA-
TIONS AND EXCLUSIONS MAY NOT APPLY TO YOU.
HOW STATE LAW RELATES TO THE WARRANTY
This warranty gives you specific legal rights, and you may also have other rights
which vary from state to state.
FOR MORE INFORMATION, TELEPHONE 800-366-5213
NEC TECHNOLOGIES, INC.
1250 N. Arlington Heights Road, Suite 500
Itasca, Illinois 60143-1248
NOTE:   All products returned to NECTECH for service MUST have
prior approval. To get approval, call NEC Technologies at
800-836-0655.
10 
						

							1. Introduction
Introduction To The MultiSync LT80 Projector .............................................................. 13
How Do You Get Started? ............................................................................................... 15
WhatÕs In The Box? ........................................................................................................ 15
Getting To Know Your MultiSync LT80 Projector .......................................................... 17
Front Features .......................................................................................................... 17
Rear/ Left Side Features ........................................................................................... 18
Top Features ............................................................................................................ 19
Terminal Panel Features ........................................................................................... 21
Remote Control Features ......................................................................................... 25
2. Installation
Setting Up Your MultiSync LT80 Projector .................................................................... 29
Selecting A  Location................................................................................................ 30
Using A Tabletop Or Cart......................................................................................... 31
Moving The Projector .............................................................................................. 33
Using The Ceiling Mount ........................................................................................ 35
Ceiling Installation ................................................................................................... 35
Wiring Diagram ........................................................................................................ 37Ð38
Connecting Your PC Or Macintosh Computer ................................................................ 39
Connecting Your Document Camera ............................................................................... 45
Connecting Your VCR, DVD Player Or Laser Disc Player ............................................. 45
Connecting An External Monitor .................................................................................... 46
Connecting Your Remote Mouse Receiver ...................................................................... 47
TABLE OF CONTENTS11
3. Operation
General Controls ............................................................................................................. 49
Using The Menus ............................................................................................................ 51
Menu Descriptions & Functions ..................................................................................... 53
Source Menu (Source Icons) .................................................................................... 53
Image Adjust Menu(Sound And Picture Control Icons) ........................................... 55
Power Menu(Projector Control Icons) .................................................................... 59
Settings Menu(Maintenance Icons) .......................................................................... 61
4. Maintenance
Replacing The Lamp ....................................................................................................... 63
Remote Control Battery Installation ................................................................................ 65
Operating Range ............................................................................................................. 66
5. Troubleshooting
Status Light Messages ..................................................................................................... 71
Common Problems & Solutions ...................................................................................... 73
6. Specifications
Optical ............................................................................................................................ 75
Electrical ......................................................................................................................... 76
Mechanical ..................................................................................................................... 76
D-Sub Pin Assignments .................................................................................................. 79
Timing Chart ................................................................................................................... 81
PC Control Command Reference .................................................................................... 83
Cable Connection ............................................................................................................ 87
12 
						

							This section introduces you to your new MultiSync LT80 Projector,
provides a list of materials that comes with your projector and describes
the features and controls.
Congratulations On Your Purchase Of The MultiSync
LT80 Projector
The MultiSync LT80 is one of the very best projectors available today.
The MultiSync LT80 enables you to project precise images up to 300
inches across (measured diagonally) from your PC or Macintosh com-
puter (desktop or notebook), VCR, document camera, or even a laser
disc player.
You can use the projector on a tabletop or cart, you can permanently
mount it on a ceiling*, or you can use MultiSync LT80 Projector to
project images from behind the screen. You can use the remote control
with the remote mouse receiver to operate the mouse on your PC or
Mac.
Features youÕll enjoy :
¥ Battery powered remote control operates all functions of projector,
can be used to control computer operation and has a built in laser
pointer.
INTRODUCTION 1
¥  Projector is compatible with VGA, SVGA and XGA using NECs
AccuBlend Intelligent Pixel Blending Technology.
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
SECAM: TV standard used in France and Eastern Europe
NTSC4.43: TV standard used in Middle East countries
¥ Brightness rating of 600 ANSI lumens allows you to make presen-
tations with the lights on.
¥ The LT80 enables projection of high resolution images from
     computers, VCRs, DVD players, laser disk players and document
cameras.
¥ Crisp, colorful and clear images projected for your presentations.
¥ Screen image remains square when projecting to the line of vision.
13
INTRODUCTION14 * Installing the MultiSync LT80 Projector on the ceiling must be done
by authorized NEC technicians. Consult your NEC dealer for more
information. 
						

							How Do You Get Started?
The fastest way to get started is to take your time and do everything
right the first time. Take a few minutes now to watch the introductory
video and review the manual. This may save you hours later on. At the
beginning of each section of the manual youll find an overview. If the
section doesnt apply, you can skip it.
WhatÕs 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 MultiSync LT80 Projector.
15
Batteries (AA22)Remote mouse receiverMonitor adapter
for Macintosh
Remote control
INTRODUCTION16
Mouse adapter (For Macintosh)
MultiSync LT
80
UserÕs manual
Signal cable
(15-Pin Mini D-Sub To 15-Pin Mini
D-Sub connector)Power cable
MultiSync LT
80
Projector
Registration card
Mouse adapter (For IBM PS/2)
Introductory video
Serial cableCarrying case Remote control case
MultiSync LT
80
Quick Start
Guide
Quick Start Guide
¥ NEC MultiSync LT80 Projector
¥ Carrying Case
¥ Remote Control With Built-In
Laser Pointer
¥ Remote Control Case
¥ Remote Mouse Receiver
¥ Signal Cable
(15-Pin Mini D-Sub To 15-Pin
Mini D-Sub Connector)¥Mouse Adapters for IBM PS/2 and Mac
¥ Serial Cable
¥ Monitor Adapter for Macintosh
¥ Power Cable
¥ Two AA  Batteries
¥ Introductory Video
¥ Users Manual
¥ Registration Card
¥ Quick Start Guide 
						

							Getting To Know Your MultiSync LT80 Projector
Front FeaturesTop features
17
INTRODUCTION18
ADJUST
ENTER
SELECT
MENU
STATUS
PUSH ON/OFF
POWER
PC CONTROL
VIDEO IN
RGB INPUT
RGB OUTPUT
RGB
AUDIO
RGB
AUDIO
S-VIDEOVIDEOL(MONO) – R-AUDIO
Monaural Speaker (1W)
Remote Sensor
Ventilation
Lens and lens Cap
Focus Ring
Zoom Ring Lever
Adjustable Feet Cooling Fan
Rear Features
Remote Sensor
Power Switch
AC Input
Connect the supplied power
cableÕs three-pin plug here.Slot for Kensington
MicroSaver Security
System
Left Side Features
PC CONTROLVIDEO INPUT
RGB INPUT RGB OUPUT
S-VIDEO
RGBVIDEOL(MONO) – R-AUDIO
AUDIO RGB AUDIO
Rear Feet Terminal Panel Carrying handle