NEC Projector LT81 User Manual

P r i n t e d i n J a p a n  
P a r t N o . 7 8 4 0 9 9 4 2  
I t a s c a , I l l i n o i s 6 0 1 4 3 - 1 2 4 8  
1 2 5 0 N . A r l i n g t o n H e i g h t s R o a d ,  
N E C T e c h n o l o g i e s , I n c .  
S u i t e 5 0 0  
o j e c t o r t a b l e P r U l t r a - P o r  
Ultra-Portable Projector  
®
MultiSync LT81/100™  
Projector  
User’s Manual  
NEC Technologies  
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3
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.  
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.  
Installation  
1. For best results, use your projector in a darkened room.  
b. The projector must be installed by qualified NEC service personnel.  
2. Place the projector on a flat, level surface in a dry area away from dust and  
moisture.  
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.  
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.  
2. Handle the power cable carefully and avoid excessive bending. A damaged  
cord can cause electric shock or fire.  
6. Do not place heavy objects on top of the projector.  
3. If the projector is not to be used for an extended period of time, disconnect the  
plug from the power outlet.  
Cleaning  
Fire and Shock Precautions  
1. Unplug the projector before cleaning.  
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. 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.  
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.  
Lamp Replacement  
• Perform lamp replacement in accordance with the instructions on page 81.  
3. Do not place any liquids on top of your projector.  
• 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.  
• 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.  
• 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.  
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ATTENTION  
RISQUE D’ELECTROCUTION NE PAS OUVRIR  
ATTENTION  
Pour couper l'alimentation principale, s'assurer de retirer la fiche de la prise de courant.  
La prise de courant murale doit être installée le plus près possible de l'équipement, et doit être facilement accessible.  
Télécommande LT100  
Télécommande LT81  
ATTENTION  
RAYONNEMENT LASER NE PAS  
REGARDER DANS LE FAISCEAU  
ATTENTION  
RAYONNEMENT LASER NE PAS  
REGARDER DANS LE FAISCEAU  
LONGUEUR D’ONDE: 645 nm (640-660 nm)  
MAX. SORTIE: 1 mW  
APPREIL A LASER DE CLASSE 2  
LONGUEUR D’ONDE: 670 nm  
MAX. SORTIE: 1 mW  
APPREIL A LASER DE CLASSE 2  
DOC avis de conformation  
Ce symbole a pour but de prévenir l’utilisateur de la  
présence d’une tension dangereuse, non isolée se  
trouvant à l’intérieur de l’appareil. Elle est d’une  
intensité suffisante pour constituer un risque  
d’électrocution. Eviter le contact avec les pièces à  
l’intérieur de cet appareil.  
DOC avis de conformation  
Cet appareil numérique de la classe A respecte toutes les exigences du  
Règlement sur le Matériel Brouilleur du Canada.  
Ce symbole a pour but de prévenir l’utilisateur de la  
présence d’importantes instructions concernant  
l’entretien et le fonctionnement de cet appareil. Par  
conséquent, elles doivent être lues attentivement afin  
d’éviter des problèmes.  
Importantes précautions de sécurité  
Les points suivants sont des précautions de sécurité importantes destinées à  
garantir une longue durée de service du projecteur et afin d’éviter un incendie  
et des risques d’électrocution. S’assurer de lire attentivement ces précautions de  
sécurité et respecter tous les avertissements décrits ci-dessous.  
AVERTISSEMENT  
Installation  
AFIN DE REDUIRE LES RISQUES D’INCENDIE OU D’ELECTROCUTION,  
NE PAS EXPOSER CET APPAREIL A LA PLUIE OU A L’HUMIDITE. 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 L’INTERIEUR. LAISSER A UN PER-  
SONNEL QUALIFIE LE SOIN DE REPARER CET APPAREIL.  
1. Pour un fonctionnement optimal, utiliser le projecteur dans une pièce sombre.  
2. Placer le projecteur sur une surface à niveau et dans un endroit sec exempt de  
poussières et d’humidité.  
3. Ne pas placer le projecteur en plein soleil, près d’appareils ménagers ou  
d’autres appareils de chauffage.  
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4. La fumée, la vapeur et l’exposition aux rayons directs du soleil risquent de  
détériorer sérieusement les composantes internes.  
3. Si le projecteur n’est pas utilisé pendant une période prolongée, retirer la fiche  
de la prise secteur.  
5. Eviter des manipulations brusques lors du déplacement du projecteur, car un  
choc violent pourrait endommager les composantes internes.  
Nettoyage  
6. Ne pas deposer d’objets lourds sur le dessus du projecteur.  
1. Débrancher le projecteur de la prise d’alimentation avant le nettoyage.  
7. Lors de l’installation du projecteur au plafond, respecter les instructions  
suivantes.  
2. Nettoyer régulièrement le coffret avec un chiffon doux. S’il y a des taches  
tenaces, utiliser une solution d’un détergent doux. Ne jamais utiliser de  
détergents puissants ou des solvants, tel que l’alcool ou un diluant pour  
nettoyer le projecteur.  
a. Le plafond doit être suffisamment solide pour supporter le poids du  
projecteur et il doit être installé selon les codes de construction locaux.  
b. Le projecteur doit être installé par un personnel qualifié.  
3. Utiliser un appareil diffuseur chauffant ou du papier de nettoyage de lentille  
disponible dans le commerce pour nettoyer la lentille.  
Alimentation  
1. Le projecteur est conçu pour fonctionner à 100-120 ou 220-240VCA 50/  
60Hz. S’assurer que la tension d’alimentation locale satisfait cette exigence  
avant d’utiliser le projecteur.  
Ne pas frapper ou rayer la surface de la lentille, car des défauts risquent de se  
produire sur la surface de la lentille.  
2. Manipuler le câble d’alimentation avec précaution et éviter de le plier  
excessivement. Un cordon endommagé risque de provoquer une  
électrocution ou un incendie.  
2. Eviter que des objets étrangers, des agrafes, des clous et du papier, par  
exemple, pénètrent à l’intérieur du projecteur. Ne pas essayer de récupérer  
ces objets soi-même ou ne pas insérer des objets métalliques, des fils et des  
tourne-vis, par exemple à l’intérieur du projecteur. Si un objet tombe à  
l’intérieur du projecteur, le débrancher immédiatement et contacter un  
dépanneur qualifié pour retirer l’objet.  
Remplacement de la lampe  
• Effectuer le remplacement de la lampe suivant les instructions de la page 85.  
• Assurez-vous de bien remplacer la lampe lorsque le voyant d’usure  
s’allume. Si vous continuez d’utiliser la lampe après 1000 heures  
d’utilisation, l’ampoule peut se briser et des brisures de verre peuvent être  
éparpillées dans le compartiment de la lampe. Ne les touchez pas car elles  
peuvent vous blesser. Dans ce cas, contactez votre revendeur NEC afin de  
procéder au remplacement de la lampe.  
3. Ne pas placer des liquides sur le dessus du projecteur.  
• Ne regardez pas à l’intérieur de l’objectif lorsque le projecteur  
est en marche. Vous risquez de vous blesser gravement aux  
yeux.  
• Attendez minimum UNE minute après avoir éteint la lampe avant de la  
rallumer. Une haute tension est immédiatement appliquée à la lampe quand  
celle-ci est mise sous tension. Par conséquent, éteindre, puis tout de suite  
rallumer peut abréger la vie de votre lampe et endommager votre projecteur.  
• Ne regardez pas à l’intérieur de la flèche laser lorsque celle-ci  
est en marche et ne dirigez pas le rayon laser sur une autre  
personne. Vous risquez de provoquer ue blessure grave.  
Précautions pour éviter un incendie ou  
une électrocution  
1. Une ventilation appropriée doit être assurée afin d’éviter une accumulation  
de chaleur à l’intérieur du projecteur. S’assurer que les trous de ventilation ne  
sont pas obstrués. Laisser un espace d’au moins 10 cm (quatre pouces) entre  
le projecteur et les murs.  
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9
L I M I T E D W A R R A N T Y  
®
2. Any product on which the serial number has been defaced, modified or  
removed. NECTECH’S LIABILITY FOR ANY DEFECTIVE PRODUCT  
IS LIMITED TO THE REPAIR OR REPLACEMENT OF THE PRODUCT  
AT OUR OPTION. REPLACEMENT PRODUCTS MAY BE NEW OR  
‘LIKE NEW’.  
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.  
3. NECTECH SHALL NOT BE LIABLE FOR : Damage, deterioration or  
malfunction resulting from:  
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.  
a. Accident, misuse, abuse, neglect, fire, water, lightning or other acts of  
nature, unauthorized product modification, or failure to follow instructions  
supplied with the product.  
WHO IS PROTECTED?  
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.  
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:  
e. Any other cause which does not relate to a product defect.  
1. Any product which is not distributed in the U.S.A. or Canada by NECTECH  
or which is not purchased in the U.S.A. or Canada from an authorized  
NECTECH dealer. For a listing of authorized dealers please contact  
NECTECH at 800-836-0655.  
4. Cartons, carrying cases, batteries, external cabinets, magnetic tapes, or any  
accessories used in connection with the product.  
WHAT NEC WILL COVER  
We will pay labor and material expenses for covered items. But we will not pay  
for the following:  
1. Removal or installation charges.  
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.  
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  
3. Payment of shipping charges.  
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 TOYOU.  
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.  
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.  
3. For the name of the nearest NECTECH authorized service center, call  
NECTECH at 800-836-0655.  
FOR MORE INFORMATION, TELEPHONE 800-366-5213  
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.  
NEC TECHNOLOGIES, INC.  
1250 N. Arlington Heights Road, Suite 500  
Itasca, Illinois 60143-1248  
EXCLUSION OF DAMAGES  
NECTECH’S LIABILITY FORANY DEFECTIVE PRODUCT IS LIMITED  
TO THE REPAIR OR REPLACEMENT OF THE PRODUCT AT OUR  
OPTION. NECTECH SHALL NOT BE LIABLE FOR:  
NOTE: All products returned to NECTECH for service MUST have  
prior approval. To get approval, call NEC Technologies at  
800-836-0655.  
10  
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T A B L E O F C O N T E N T S  
11  
1. Introduction  
Introduction To The MultiSync LT81/LT100 Projector .................................... 13  
How Do You Get Started? ................................................................................ 15  
What’s In The Box? ......................................................................................... 15  
Getting To Know Your MultiSync LT81/LT100 Projector ................................ 17  
Front Features ........................................................................................... 17  
Rear Features ............................................................................................ 18  
Top Features .............................................................................................. 19  
Terminal Panel Features ............................................................................ 21  
Remote Control Features ........................................................................... 25  
2. Installation  
Setting Up Your MultiSync LT81/LT100 Projector .......................................... 29  
Selecting A Location ................................................................................. 30  
Projection Distance ................................................................................... 31  
Using A Tabletop Or Cart .......................................................................... 35  
Transporting And Storing The Projector .................................................... 37  
Ceiling Installation .................................................................................... 41  
Wiring Diagram ............................................................................................... 43  
ConnectingYour PC Or Macintosh Computer ................................................. 45  
ConnectingYour DVD Player .......................................................................... 51  
ConnectingYour Document Camera ................................................................ 51  
ConnectingYour VCR Or Laser Disc Player .................................................... 52  
Connecting An External Monitor ..................................................................... 52  
ConnectingYour Remote Mouse Receiver ....................................................... 53  
3. Operation  
General Controls.............................................................................................. 57  
Using The Menus ............................................................................................ 59  
Menu Descriptions & Functions ...................................................................... 61  
Source Menu (Source Icons) ..................................................................... 61  
Image Adjust Menu(Sound And Picture Control Icons) ............................. 63  
Power Menu(Projector Control Icons) ..................................................... 67  
Settings Menu(Maintenance Icons) ........................................................... 69  
Using the Viewer Function ........................................................................ 71  
4. Maintenance  
Replacing The Lamp ....................................................................................... 81  
Remote Control Battery Installation ................................................................ 83  
Operating Range .............................................................................................. 84  
5. Troubleshooting  
Status Light Messages ..................................................................................... 89  
Common Problems & Solutions ...................................................................... 91  
6. Specifications  
Optical / Electrical / Mechanical ...................................................................... 93  
Cabinet Dimensions ........................................................................................ 95  
D-Sub Pin Assignments ................................................................................... 99  
Timing Chart ................................................................................................. 101  
PC Control Command Reference ................................................................... 103  
Cable Connection .......................................................................................... 107  
12  
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1 I N T R O D U C T I O N  
13  
This section introduces you to your new MultiSync LT81 (SVGA)/  
LT100 (XGA) Projector, provides a list of materials that comes with  
your projector and describes the features and controls.  
Features you'll enjoy:  
Simple set up and operation.  
A high-performance 280 watt metal halide lamp that delivers a high  
bright image, allowing you to make presentations with the lights on.  
A wireless remote control that operates the projector from any  
angle.  
Congratulations On Your Purchase Of The  
MultiSync LT81/LT100 Projector  
A laser pointer that' s built into the remote control.  
The MultiSync LT81/LT100 is one of the very best projectors available  
today. The MultiSync LT81/LT100 enables you to project precise  
images up to 300 inches across (measured diagonally) from your PC or  
Macintosh computer (desktop or notebook), VCR, DVD player, docu-  
ment camera, or even a laser disc player.  
The manual zoom control enables you to adjust the image to be  
between 24 and 300 inches (measured diagonally).  
White balance control allows you to adjust the brightness and  
contrast for each RGB color.  
You can choose between video modes depending on your source:  
You can use the projector on a tabletop or cart, you can permanently  
"normal" for a typical picture, "natural" for true color reproduction,  
and "camera" for use with a document camera or low APL picture.  
mount it on a ceiling*1, or you can use MultiSync LT81/LT100 Projec-  
tor to project images from behind the screen. The remote control can be  
used wirelessly or with a cable (only the LT100 can be connected with  
a cable), and you can even use the remote control with the built-in  
remote mouse receiver to operate the mouse on your PC or Mac.  
The optional LT Viewer kit allows you to start your presentation  
even when a PC is not available at the site.  
The "image capture" enables you to use the entire picture as a  
background image or to create slides (optional LT Viewer required).  
An image can be projected from in front or behind a screen, and the  
projector can even be installed on the ceiling.  
Accepts component video source such as DVD player with the Y/  
Cb/Cr output.  
NEC Technologies' exclusive AccuBlend™ intelligent pixel blend-  
ing technology - an extremely accurate image compression technol-  
ogy - offers a crisp image with SXGA (1280
ן
1024) resolution*2 .  
Supports most IBM VGA, SVGA, XGA*3, SXGA(with  
AccuBlend™)*2 , Macintosh, or any other RGB signals within a  
horizontal frequency range of 15.754 to 85 kHz (60 kHz : LT81) and  
a vertical frequency range of 50 to 85 Hz. This includes NTSC,  
PAL, SECAM and NTSC4.43 standard video signals.  
The remote control can be used with (LT100 only) or without a  
cable, and you can even use the remote to operate your PC or  
Macintosh mouse wirelessly from across the room with the built-in  
remote mouse receiver.  
You can control your MultiSync LT81/LT100 Projector with a PC.  
The contemporary cabinet design is compact, easy to carry, and  
complements any office, board room or auditorium.  
*1 Installing the MultiSync LT81/LT100 LCD Projector on the ceiling  
must be done by authorized NEC technicians. Consult your NEC  
dealer for more information.  
Note: Composite video standards are as follows:  
NTSC:  
PAL:  
U.S. TV standard for video in U.S. and Canada.  
TV standard used in western Europe.  
*2 An SXGA image (1280
ן
1024) is converted into a 1024
ן
768  
SECAM:  
NTSC4.43:  
TV standard used in France and Eastern Europe.  
TV standard used in Middle East countries.  
crisp image with NEC technology's AccuBlend on LT100.  
*3 An XGA image (1024
ן
768) is converted into an 800
ן
600 crisp  
image with NEC technology's AccuBlend.  
INTRODUCTION  
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15  
Remote control  
Mouse adapter (For IBM PS/2)  
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 click through the  
training CD-ROM and review the user’s manual. This may save you  
hours later on. At the beginning of each section of the manual you'll  
find an overview. If the section doesn't apply, you can skip it.  
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 MultiSync LT81/LT100 Projector.  
Mouse adapter (For Macintosh)  
Remote control case  
• NEC MultiSync LT81/LT100  
Projector  
MouseAdapters for IBM PS/2 and Mac  
• Serial Cable  
• Carrying Case  
• Remote Control With Built-In  
Laser Pointer  
• Remote Cable (LT100 only)  
• Remote Control Case  
• Remote Mouse Receiver  
• Signal Cable  
• Pin Adapter for Macintosh  
• Power Cable  
• Two AA Batteries  
• Introductory / Training CD-ROM  
• User's Manual  
Pin adapter for  
Macintosh  
Batteries (AA
ן
2)  
Remote mouse receiver  
• Registration Card  
• Quick Connect Guide  
(15-Pin Mini D-Sub To 15-Pin  
Mini D-Sub Connector)  
Signal cable  
Serial cable  
Remote Cable (LT100 only)  
Carrying case for LT100  
Power cable  
(15-Pin Mini D-Sub To 15-Pin Mini  
D-Sub connector)  
Introductory / Training CD-ROM  
Quick Connect Guide  
User’s manual  
Registration card  
Carrying case for LT81  
Quick Cect Gide  
MultiSync LT  
Ultra-Portable  
MultiSync  
Projector  
81/100  
INTRODUCTION  
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17  
Getting To Know Your MultiSync LT81/LT100 Projector  
Top features  
Monaural Speaker (1W)  
Front Features  
O N  
/ O F F  
E N T E R  
P O W E R  
S T A T U S  
S E L E C T  
M E M U  
Cooling Fan  
Rear Foot  
Remote Sensor  
Ventilation  
One-Touch Tilt Button (LT100 only)  
Adjustable Foot  
(Adjustable on LT100 only)  
Lens and lens Cap  
Focus Ring  
Terminal Panel  
Remote Sensor  
Zoom Ring Lever  
One-Touch Tilt Button (LT100 only)  
Adjustable Foot  
Rear Features  
Lever-type Rear Foot (LT81 only)  
Remote Sensor  
MEMU  
Remote Sensor  
Carrying handle  
SELECT  
STATUS  
POWER  
ENTER  
/OFF  
ON  
Slot for Kensington MicroSaver Security  
System  
AC IN  
Power Switch  
AC Input  
The above drawings show LT100 but most information  
in this user’s manual applies to both products.  
Connect the supplied power  
cable’s three-pin plug here.  
INTRODUCTION  
18  
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19  
Top Features  
1 Power Button  
Use this button to turn the power on and off when Main Power Switch is  
on and the projector is on standby.  
MEMU  
2 Enter Button  
SELECT  
STATUS  
POWER  
ENTER  
Executes your menu selection.  
/OFF  
ON  
3 Select (▲▼ᮤ ᮣ) / (+)(–) Buttons  
Select: After you press the “Menu” button, use the or button to  
AC IN  
ᮤ ᮣ  
(▲▼  
)
select the menu icon of the item you wish to adjust.  
(+)(–): 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.  
4 Menu Button  
Displays the on- screen menu.  
5 Power Indicator  
When the projector is switched On, the green LED blinks for about one  
minute, then lights up.  
4
3
If the main power is on and you switch it off by pressing POWER  
OFF on the remote control or press and hold down the POWER  
button on the cabinet for one second, the green LED blinks for  
one minute, then lights up and the projector goes on standby.  
MENU  
SELECT  
-
+
* 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.  
2
6
ENTER  
6 Status Indicator  
STATUS  
POWER  
When this is lit red continually, it's 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 81.)  
ON/OFF  
5
1
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-  
jector's internal temperature is too hot to operate safely. See the  
Status Light Messages on page 89 for more details.  
INTRODUCTION  
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21  
Terminal Panel Features  
This panel is located in the side and is where you connect your cables.  
2
3
1
1 Remote Control Jacks (LT100 only)  
a. Remote Control Input Jack  
Connect your remote control cable here for wired operation.  
INPUT  
VIDEO INPUT  
b. Remote Control Output Jack  
This terminal enables you to operate up to five projectors with the  
same remote control. When your remote mouse receiver is con-  
nected here, the remote sensors on the projector cabinet will re-  
ceive your mouse commands.  
(
)
S-VIDEO  
RGB INPUT  
VIDEO L MONO  
-
R-  
AUDIO  
OUTPUT  
PC CONTROL  
OUTPUT  
OUTPUT  
REMOTE  
CONTROL  
2 Video Input  
RGB  
AUDIO  
RGB  
AUDIO  
Connect a VCR, laser disk player, DVD player, or document cam-  
era here to project video.  
Left Channel/Mono Audio Input Jack  
4
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.  
NOTE: S-Video provides more vivid color and higher resolution than  
the traditional composite video format.  
3 PC Control Port  
Use this port to connect your PC to control the MultiSync LT81/  
LT100 Projector. This enables you to use your PC and serial com-  
munication protcol to control the projector. If you are writing your  
own program, command reference are on pages 103 to 106.  
4 RGB 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 that's supplied to connect  
to a PC. This also serves as the Y/Cb/Cr input connector which  
allows you to connect a DVD player with the component video  
output.  
RGB Audio Input Mini Jack  
This is where you connect RGB audio output from a computer or  
another RGB source.  
INTRODUCTION  
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23  
5 RGB 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.  
INPUT  
VIDEO INPUT  
(
)
S-VIDEO  
VIDEO L MONO  
-
R-  
AUDIO  
OUTPUT  
PC CONTROL  
OUTPUT  
Even if VIDEO is selected, the video image input to the RGB  
INPUT terminal is output.  
OUTPUT  
RGB INPUT  
REMOTE  
CONTROL  
Audio Output Mini Jack  
RGB  
AUDIO  
RGB  
AUDIO  
You can use this jack to loop your audio to an external monitor  
from the VIDEO audio input or RGB audio input source.  
5
6 Built-in Security Slot (  
)
This security slot supports the MicroSaver® Security System.  
MicroSaver® is a registered trademark of Kensington Microware  
MEMU  
Inc. The logo  
Microware Inc.  
is trademarked and owned by Kensington  
SELECT  
STATUS  
POWER  
ENTER  
/OFF  
ON  
6
AC IN  
INTRODUCTION  
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25  
3
Remote Control Features  
You can use your wireless remote control to operate your MultiSync LT81/  
LT100 Projector. With the remote mouse receiver connected to your computer,  
you can also use the projector’s remote control to operate your computer. (See  
pages 53 to 56 to connect the remote mouse receiver to your computer.)  
2
NOTE: If you are using a Macintosh computer, you can click either the right or  
left button to activate the mouse.  
1
1 Left Click Button  
4
5
Use this button to enter your menu selection. It works the same as the  
"Enter" button on the cabinet.  
2 Laser Pointer  
OFF  
POWER  
ON  
Beams a laser light when “Laser” button is pressed.  
VIDEO S-VIDEO  
3 Infrared Transmitter  
6
7
8
Direct the remote control toward the remote sensor on the projector cabinet  
or the remote mouse receiver.  
RGB  
PC CARD  
9
4 LED  
Flashes when any button is pressed.  
MENU  
LASER  
10  
-
+
5 Power On And Off  
If your main power switch is turned on, you can use these buttons to turn  
your MultiSync LT81/LT100 Projector on and off.  
6 Video Button  
R-CLICK  
POSITIONPIC-MUTE FREEZE  
Press to select an NTSC, PAL, SECAM or NTSC4.43 compatible video  
source from a VCR, DVD player, laser disc player or document camera.  
7 S-Video Button  
MAGNIFY SLIDE VOLUME  
Press to select an S-Video source from a VCR or other S-Video source.  
+
+
+
8 RGB Button  
- - -  
Press to select a video source from a computer connected to your RGB port.  
9 PC Card Button  
Press to display a slide from the flash memory card inserted in the PC card  
slot of your projector. (You must first install the optional LT Viewer board  
into your projector.)  
10 Menu 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.  
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27  
11 Laser Button  
Press and hold this button to activate the laser pointer. When lit, you can use  
the laser to draw your audience's attention to a red dot that you can place on  
any object within 30 feet (10 m).  
OFF  
POWER  
ON  
VIDEO S-VIDEO  
12 Mouse Pointer Buttons  
Works as a mouse for your computer. This button is also used to adjust  
screen position. Push (+) or (–) to select the submenu you want to adjust.  
RGB  
PC CARD  
13 Right Click Button  
MENU  
LASER  
Press this button to exit "Menus" or "Position."  
14 Freeze Button  
11  
12  
This button will freeze a video image. Press again to resume motion.  
15 Position 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.  
13  
15  
NOTE: When you are adjusting Position, the Mouse Pointer button is used to  
move the picture.  
R-CLICK  
POSITIONPIC-MUTE FREEZE  
14  
16  
16 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.  
MAGNIFY SLIDE VOLUME  
+
+
+
- - -  
17 Magnify Button  
Use the (+) or (–) button to adjust the image size up to 400%.  
18 Slide Button  
17  
19  
Press (+) to advance the next file or slide and (-) to return to the  
previous file or slide. (the optional LT Viewer board required)  
19 Volume Buttons  
Press (+) to increase the volume and (–) to decrease it.  
18  
20 Remote Jack (LT100 only)  
OF  
Connect your remote control cable here for wired operation.  
VIDEO  
S-  
VI  
RGB  
NOTE: You cannot use Menu and Position at the same time.  
MENU  
PC CARD  
LASER  
Remote Control Precautions  
POSITION  
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.  
R-CLICK  
PIC-MUTE  
+
MAGNIFY  
FREEZE  
+
SLIDE  
+
VOLUME  
+
If you will not be using the remote control for a long time, remove the  
batteries.  
20  
Do not mix new and old or different types of batteries.  
INTRODUCTION  
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2 I N S T A L L A T I O N  
29  
This section describes how to set up your MultiSync LT81/LT100 projector  
and how to connect video and audio sources.  
Setting Up Your MultiSync LT81/LT100 Projector  
Your MultiSync LT81/LT100 Projector is simple to set up and use. But before  
you get started, you must first:  
1. Determine the image size  
MEMU  
2. Set up a screen or select a non-glossy white wall onto which you can project  
your image.  
SELECT  
STATUS  
POWER  
ENTER  
/OFF  
ON  
AC IN  
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.  
Carrying handle  
Pull it out ; push it back to retract.  
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.  
Projection Distance and Image Size  
300  
300”  
231”  
240  
200  
160  
120  
100  
80  
60  
40  
20  
0
WIDE  
TELE  
27”  
24”  
Projection distance  
Width  
ft.  
0.0 3.28 6.56 9.84 13.12 16.4 19.7 23.0 26.2 29.5 32.8 36.1 39.4 40.35  
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (12.3) (m)  
Projection Distance  
Screen size  
Height  
(diagonal)  
INSTALLATION  
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31  
Projection Distance  
Wide  
Screen size  
inch  
40”  
60”  
14.8  
48  
70”  
14.7  
56  
80”  
14.7  
64  
90”  
14.6  
72  
100”  
14.6  
80  
120”  
14.6  
96  
150”  
14.6  
120  
180”  
14.5  
144  
200”  
14.5  
160  
240”  
14.5  
192  
270”  
14.5  
216  
300”  
14.5  
240  
Projection angle α Degree 14.8  
Screen width H  
inch  
mm  
inch  
mm  
inch  
mm  
inch  
mm  
inch  
mm  
inch  
mm  
32  
813  
65.2  
1219 1422 1626 1829 2032 2438 3048 3658 4064 4877 5486 6096  
97.8 114.8 131.6 148.3 164.8 198.5 248.7 298.9 332.3 399.2 449.4 500.2  
A
B
C
D
E
1655 2483 2915 3342 3767 4185 5042 6316 7591 8441 10140 11415 12704  
4.7  
119  
63  
7.0  
178  
94.5  
8.2  
207  
111  
9.3  
10.5  
267  
11.7  
296  
14.0  
356  
17.5  
444  
21.0  
533  
23.3  
593  
28.0  
711  
31.5  
800  
35.0  
889  
237  
Projection distance  
127.3 143.5 159.4 192.1 240.7 289.3 321.7 386.5 435.1 484.3  
1600 2400 2819 3233 3645 4049 4879 6114 7348 8171 9817 11052 12301  
12  
305  
24  
18  
457  
36  
21  
533  
42  
24  
610  
48  
27  
686  
54  
30  
762  
60  
36  
914  
72  
45  
1143 1372 1524 1829 2057 2286  
90 108 120 144 162 180  
54  
60  
72  
81  
90  
610  
914  
1067 1219 1372 1524 1829 2286 2743 3048 3658 4115 4572  
Tele  
40”  
11.4  
32  
60”  
11.4  
48  
70”  
11.4  
56  
80”  
11.4  
64  
90”  
11.3  
72  
100”  
11.3  
80  
120”  
11.3  
96  
150”  
11.3  
120  
180”  
11.3  
144  
200”  
11.3  
160  
240”  
11.2  
192  
270”  
11.2  
216  
300”  
Screen size  
inch  
Projection angle α Degree  
Screen width H  
inch  
mm  
inch  
mm  
inch  
mm  
inch  
mm  
inch  
mm  
inch  
mm  
813  
1219 1422 1626 1829 2032 2438 3048 3658 4064 4877 5486  
84.4 126.5 147.2 168.7 190.8 212.8 255.2 319.6 384.0 426.3 512.7 577.2  
2143 3213 3739 4286 4847 5406 6483 8117 9753 10829 13024 14660  
A
B
C
D
E
4.7  
119  
82.7  
7.0  
178  
124  
8.2  
9.3  
10.5  
267  
11.7  
296  
14.0  
356  
17.5  
444  
21.0  
533  
23.3  
593  
28.0  
711  
31.5  
800  
207  
237  
144.3 165.4 187.1 208.7 250.3 313.4 376.6 418.1 502.9 566.1  
Projection distance  
2101 3150 3665 4201 4752 5301 6358 7960 9566 10620 12774 14379  
12  
305  
24  
18  
457  
36  
21  
533  
42  
24  
610  
48  
27  
686  
54  
30  
762  
60  
36  
914  
72  
45  
1143 1372 1524 1829 2057  
90 108 120 144 162  
54  
60  
72  
81  
610  
914  
1067 1219 1372 1524 1829 2286 2743 3048 3658 4115  
* For Screen Sizes of 24 to 300 inches not indicated on the projection tables, use the formulas on the next page.  
INSTALLATION  
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33  
Unit (inch)  
Desk top  
H (inch) = Width of screen  
A = C / cosα  
Screen  
B = 3.7H / 25.4  
C
C (WIDE) = (2.026
ן
H) – 2.437  
C (TELE) = C (WIDE)
ן
1.3  
D = E / 2  
Screen center  
E = H / 4
ן
3  
E
Unit (mm)  
A
H (inch) = Width of screen  
A = C / cosα  
B = 3.7H  
C (WIDE) ={(2.026
ן
H) – 2.437} 
ן
25.4  
C (TELE) = C (WIDE)
ן
1.3  
D = E / 2  
D
B
Screen bottom  
α
Projector feet  
E = H / 4
ן
3  
LT100 : 3.8” (97mm)  
LT81 : 3.4” (85.6mm)  
Ceiling mount  
C
LT100 : 3.8” (97mm)  
LT81 : 3.4” (85.6mm)  
Projector feet  
α
B
A : Distance between lens center and  
screen center  
A
B : Vertical distance between lens center  
and screen bottom (screen top for ceil-  
ing mount)  
Screen top  
D
E
C : Horizontal throw distance between  
screen surface and projector lens  
D : Vertical distance between screen  
center and screen bottom (screen top  
for ceiling mount)  
Screen center  
E : Screen Height  
INSTALLATION  
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35  
(A) Top view  
Using A Tabletop Or Cart  
screen  
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 you'll 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.)  
(B) Side view  
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)  
screen  
5. [LT100] To center the image vertically (B), lift the front edge of the  
projector and press the buttons on the front of the projector, just above  
the feet, to release the one-touch tilt feet. (There is approximately 5.0˚  
of up and down adjustment for the front of the projector.)  
[LT81] To center the image vertically (B), raise the lever-type foot  
on the rear straight up.  
6. To fine tune the image's position vertically on the screen, rotate each  
front foot, and rear feet if necessory.  
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.  
Up  
Down  
7. Adjust the size of the image using the zoom ring lever on the lens.  
Up  
Down  
NOTE: The set up angle of the projector should not exceed 15  
degrees, otherwise lamp life could decrease dramatically.  
LT100  
LT81  
+
MEMU  
SELECT  
STATUS  
POWER  
ENTER  
/OFF  
ON  
Up  
Down  
Focus ring  
Zoom ring lever  
INSTALLATION  
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37  
3. Put the projector in the large compartment of the case.  
Transporting and storing the projector  
A padded carrying case has been supplied with your projector. Please  
use this case when transporting and storing the projector. The carrying  
case also has a compartment for your laptop computer.  
To use the carrying case follow the directions below:  
R
E
W
S
P O  
S T A  
T U  
[LT81]  
/
O F O F  
N
+
N
T E R  
E
-
E S L E C  
T
U
E M  
M
1. Remove any accessories.  
Projector  
4. Zip up the sides of the case.  
2. Unfold carrying case.  
Zipper  
5. Place notebook computer into carrying case.  
6. Store remote control and other accessories in front pouch.  
* Carry projector carefully. Bumping projector may cause damage.  
Note book PC  
When restoring the remote  
control, place the case on  
the functional face to  
prevent possible  
malfunction.  
Other Accessories  
INSTALLATION  
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39  
3. Hold the projector by it’s handle and slide it into the large  
compartment of the carrying case.  
Transporting and storing the projector  
[LT100]  
1. Unfold carrying case.  
Projector  
EUM  
SELCT  
ACIN  
NETR  
O
/
AUTS  
PWOER  
2. Zip up the sides of the case.  
4. Zip up the top of the case.  
Zipper  
5. Unlatch the belt and then place your notebook computer into the  
7. Store the remote control and other accessories in the side  
pouches on the carrying case.  
front pouch.  
Note book PC  
1
2
Other Accessories  
When storing the remote  
control, place the remote in  
its protective case. The  
6. Latch the belt.  
2
case will keep the remote  
buttons from being acci-  
dentally pushed while it is  
being stored or trans-  
ported. This will keep the  
batteries from being dis-  
charged.  
1
* Carry the projector carefully. Bumping or dropping the projector  
may cause damage.  
INSTALLATION  
40  
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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 41˚F (5˚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 bottom or the side  
of the projector.  
100"–131"  
80"–104"  
233"–303"  
60"–78"  
Ceiling Installation  
200"–261"  
40"–53"  
2.27ft  
(691.8mm)  
24"–31"  
Installing your MultiSync LT81/LT100 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.  
1.2m (3.94ft)  
2.1m (6.89ft)  
NOTE : Distances may vary ±5%.  
3.15m (10.33t)  
4.2m (13.78ft)  
5.3m (17.39ft)  
10.65m (34.94ft)  
12.3m (40.35ft)  
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 () () buttons on your remote control to correct the orientation.  
(See page 70.)  
Proje c tion d ista nc e a nd sc re e n size e xa m p le s  
• Horizontal projection position  
Vertical projection position  
Lens centered left to right  
Screen size Projection distance L ft.(m) Dimension H inch (cm)  
Inches  
24  
Wide (W)  
Tele (T)  
Both W & T  
2.76” (7.0cm)  
4.8” (12.2cm)  
6.93” (17.6cm)  
9.37” (23.8cm)  
11.46” (29.1cm)  
3.94ft (1.20m)  
6.89ft (2.10m)  
10.33ft (3.15m)  
40  
60  
80  
100  
200  
300  
5.25 ft (1.60m)  
7.87 ft (2.40m)  
10.66ft (3.25m) 13.78ft (4.20m)  
13.3ft (4.05m) 17.39ft (5.30m)  
26.9ft (8.20m) 34.94ft (10.65m) 23.58” (59.9cm)  
40.35ft (12.30m) 35.08” (89.1cm)  
L
INSTALLATION  
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Wiring Diagram  
INPUT  
VIDEO INPUT  
(
)
S-VIDEO  
RGB INPUT  
VIDEO L MONO  
-R-  
AUDIO  
OUTPUT  
PC CONTROL  
OUTPUT  
OUTPUT  
REMOTE  
CONTROL  
AUDIO  
RGB  
AUDIO  
Document Camera  
To video, S-video, and audio  
inputs on the projector  
VCR, Laser Disk Player or DVD Player  
DVD Player with Y/Cb/Cr output  
To RGB input on the projector  
Signal cable (supplied)  
To mini D-Sub 15-pin connector on the Projector  
Pin adapter for Macintosh  
(supplied)  
IBM VGA or Compatibles  
Macintosh or Compatibles (Desk top type)  
Mac ADB adapter  
(supplied)  
Remote Mouse  
Receiver  
PS/2 mouse adapter  
(supplied)  
Remote Mouse  
Receiver  
Remote Control Guideline  
1. Plug the serial cable with the remote mouse receiver into your computer's mouse port and restart your computer to gain remote mouse  
control.  
2. When using the remote control's built-in infrared mouse on a laptop computer, the laptop's 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 computer's 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.  
INSTALLATION  
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Connecting Your PC Or Macintosh Computer  
Connecting your PC or Macintosh computer to your MultiSync LT81 (SVGA)/ LT100 (XGA) Projector will enable you to project your  
computer's screen image for an impressive presentation. All of these following display standards are supported:  
VGA 640
ן
480 for graphics  
VGA 640
ן
350 for graphics  
VGA 720
ן
350 for text  
Macintosh at 640
ן
480  
VGA 640
ן
400 for graphics  
VGA 720
ן
400 for text  
SuperVGA 800
ן
600  
Macintosh at 832
ן
624  
XGA1024
ן
768 (AccuBlend) Macintosh at 1024
ן
768 (AccuBlend)  
SXGA1280
ן
1024 (AccuBlend)*  
* indicates that this resolution is supported by LT100 only.  
To connect to a PC, Macintosh or computer equipped with an XGA/SVGA/VGA adapter or compatible graphics adapter, simply:  
1. Turn off the power to your projector and computer.  
2. If your PC does not support XGA/SVGA/VGA you will need to install an XGA/SVGA/VGA graphics board. Consult your computer's owner's  
manual for your XGA/SVGA/VGA configuration. If you need to install a new board, see the manual that comes with your new graphics board for  
installation instructions.  
3. Use the signal cable that's supplied to connect your PC or Macintosh computer to the projector. For Macintosh, use the supplied pin adapter to  
connect to your computer's video port.  
4. Turn on the projector and the computer.  
5. If the projector goes blank after a period of inactivity, it may be caused by a screen saver installed on the computer you've connected to the projector.  
When using a Macintosh with the LT81/LT100, set the DIP switch of the supplied pin adapter according to your resolution. After setting, restart  
your Macintosh.  
See the following pages for setting of the DIP switch.  
• When using with a Macintosh, SVGA (800
ן
600) / XGA (1024
ן
768) is recommended if your Macintosh supports this mode.  
When using with a Macintosh PowerBook, output may not be set to 800
ן
600 unless “mirroring” is off on your PowerBook. Refer to owner’s manual  
supplied with your Macintosh computer for mirroring.  
NOTE: A Video Adapter cable manufactured by Apple Computer is needed for a PowerBook which does not have a mini D-Sub 15-pin connector.  
Settings for Macintosh adapter  
Macintosh models applied  
Setting Mode (Fixed resolution)  
Setting required to be selected resolution on Mac after  
restarting.  
Desktop type and PowerBook with 800
ן
600 16” fixed mode (output is 832
ן
624)  
Set to VGA/SVGA (800
ן
600)  
LCD panel  
PowerBook with 640
ן
480 LCD panel  
13” fixed mode (output is 640
ן
480)  
Set to 17” multi-scan mode (640
ן
480)  
Desktop type with AccuBlend  
19” fixed mode (output is 1024
ן
768)  
Set to 17” multi-scan mode (1024
ן
768)  
INSTALLATION  
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47  
Settings for Monitor Mode  
Number of DIP switch  
S1  
S2  
S3  
S4  
S5  
S6  
S7  
S8  
Monitor size  
ON  
ON  
ON  
ON  
ON  
15” multi-scan mode /16”–13”  
17” multi-scan mode /19”–13”  
19” multi-scan mode /21”–13”  
13” fixed mode /640
ן
480  
VGA/SVGA mode  
ON  
ON  
ON  
ON  
16” fixed mode /832
ן
624  
19” fixed mode /1024
ן
768  
ON  
NOTE: For setting other than display modes supported by your Macintosh and LT81/LT100, using of the  
DIP switch may bounce a image slightly or may display nothing. If this happens, set the DIP switch to the  
13” fixed mode and then restart your Macintosh. After that, restore to a displayable mode and then  
restart the Macintosh again.  
Make sure that LT81/LT100 and your Macintosh are connected with the pin adapter and the supplied  
signal cable (mini D-Sub 15-pin connector) and then restart your Macintosh.  
Examples of DIP switch setting  
VGA/SVGA mode  
19” fixed mode  
17” multi-scan mode  
ON  
ON  
ON  
1
2
3
4 5  
6
7
8
1
2
3
4 5  
6
7 8  
1
2
3 4  
5
6
7 8  
NOTE: Refer to your computer's owner's manual for more information about your computer's video  
output requirements and any special identification or configuring your projector's image and monitor  
may require.  
INSTALLATION  
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49  
4. You may be asked to reboot for the changes to take effect, or you' ll  
get a message that "Windows is about to resize your display." When  
asked if you want to keep your settings, select "Yes."  
Changing Video Resolutions  
Depending on your computer's graphic capability, you may be able  
to select one of several resolutions. Generally a computer- either a  
PC or Macintosh- with 1 meg. of memory will run:  
640
ן
480 at 16.7 million colors (24 bit Truecolor)  
800
ן
600 at 65 thousand colors.  
Method 2  
1. Click on your "My Computer" icon.  
2. Open "Control Panel" and select "Display."  
3. Change your resolution and click "OK." after the new resolution is  
selected.  
4. You may be asked to reboot for the changes to take effect, or you' ll  
get a message that "Windows is about to resize your display." When  
asked if you want to keep your settings, select "Yes."  
1024
ן
768 at 256 colors.  
As the resolution increases, the number of colors you can run de-  
creases. With 2 meg. of memory a computer will run:  
640
ן
480 at 16.7 million colors (24 bit Truecolor).  
800
ן
600 at 16.7 million colors (24 bit Truecolor).  
1024
ן
768 at 65 thousand colors.  
1280
ן
1024 at 256 colors.  
Windows 3.1  
1. Click on the "Main" icon and open "Control Panel."  
2. Select "Change System Settings" and click on "Option."  
3. Choose "Change Display Settings."  
Windows 95  
There are two methods you can use to change your resolution.  
4. Select the resolution you want.  
5. Choose the current drive or another.  
Method 1  
1. Move your cursor to the background image and click.  
6. Restart Windows for the changes to take effect.  
2. In the "Properties" menu, select "Settings."  
3. Change your resolution and click "OK."  
Macintosh  
1. Under the Apple menu, select "Control Panels" and open "Moni-  
tors."  
2. Click and open "Options."  
3. Select your new resolution and click "OK."  
If you have an NEC monitor connected to your Macintosh, you may  
have a "DPI-On-The-Fly" extension that enables you to change your  
resolution directly. The "DPI-On-The-Fly" icon is under your Apple  
menu.  
INSTALLATION  
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51  
Connecting Your DVD Player  
You can connect your MultiSync LT81/LT100 Projector to a DVD player with the component outputs or Video output. To do so, simply:  
1. Turn off the power to your projector and DVD player.  
2. If your DVD player has the component video (Y,Cb,Cr) output use the optional 15-pin-to-RCA
ן
3 cable to connect your DVD player to the  
RGB INPUT connector on the LT81/LT100.  
For a DVD player without component video (Y,Cb,Cr) outputs, use common RCA cables (not provided) to connect a composite VIDEO  
output of the DVD player to the Video Input of the LT81/LT100.  
3. Turn on the projector and the DVD player.  
NOTE: Refer to your DVD player's owner's manual for more information about your DVD player's video output requirements.  
Connecting Your Document Camera  
You can connect your MultiSync LT81/LT100 Projector to a document camera. To do so, simply:  
1. Turn off the power to your projector and document camera.  
2. Use a standard video cable to connect your document camera to the Video input on your projector.  
3. Turn on the projector and the document camera.  
NOTE: Refer to your document camera's owner's manual for more information about your camera's video output requirements .  
Connecting Your VCR Or Laser Disc Player  
Use common RCA cables (not provided) to connect your VCR or laser disc player to your MultiSync LT81/LT100 Projector. To make these  
connections, simply:  
1. Turn off the power to your projector and VCR or laser disc player.  
2. Connect one end of your RCA cable to the video output connector on the back of your VCR, or laser disc player, connect the other end to the  
Video input on your projector. Use standard RCA audio patch cords to connect the audio from your VCR, or laser disc player to your projector  
(if your VCR, or laser disc player has this capability). Be careful to keep your right and left channel connections correct for stereo sound.  
3. Turn on the projector and the VCR, or laser disc player.  
NOTE: Refer to your VCR, or laser disc player owner's manual for more information about your equipment's video output requirements.  
Connecting An External Monitor  
You can connect a separate, external monitor to your projector to simultaneously view on a monitor the image you're projecting. To do so:  
1. Turn off the power to your projector and computer, document camera or video source.  
2. Use a 15-pin cable to connect your monitor to the RGB OUTPUT connector on your LT81/LT100 projector.  
3. Turn on the projector and the computer, document camera or video source.  
INSTALLATION  
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Connecting Your Remote Mouse Receiver  
The remote mouse receiver enables you to operate your computer's mouse functions from the NEC MultiSync LT81/  
LT100 remote control. It is a great convenience for clicking through your computer-generated presentations.  
To connect the remote mouse receiver:  
1. Turn off your computer.  
2. For PCs: Remove your current mouse and connect the serial cable from the remote mouse receiver to your PC's  
mouse port. (Use the 6-pin adapter for connecting to a PS/2 computer.)  
For Macintosh: Remove your current mouse from your computer, attach the Macintosh adapter to the remote  
mouse receiver's serial cable, and connect the receiver to your mouse port.  
3. When the remote mouse receiver is installed, it will disable your regular mouse, disconnect the remote mouse  
receiver and restart your computer.  
Input for wired remote control (LT100 only)  
IBM PC/AT  
Input for wired remote control (LT100 only)  
Macintosh  
IBM PS/2  
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The Remote Mouse Receiver as a mouse for your computer  
Serial cable (supplied)  
The Remote sensors on the projector cabinet work as the remote sensor  
on the Remote Mouse Receiver (LT100 only)  
Remote cable  
(supplied with LT100 only)  
Remote Control  
Output  
Serial cable  
(supplied)  
Insert the supplied remote cable here.  
You can daisy-chain as many as five projectors and operate them with the same remote control. (LT100 only)  
To do so:  
1. Turn off your computer.  
2. Use the remote control cables supplied to connect the Remote Control Output of one  
projector to the Remote Control Input of the next until all the projectors are connected.  
Remote cable  
(supplied with LT100 only)  
INPUT  
S-VIDEO  
RGB INPUT  
OUTPUT  
REMOTE  
CONTROL  
RGB  
INSTALLATION  
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3 O P E R A T I O N  
57  
This section describes how to select a computer or video source and how to adjust the  
picture and sound.  
General Controls Before you turn on your MultiSync LT81/LT100 Projector, ensure  
that the computer or video source is turned on and that your lens cap is removed.  
1. Turn On The Projector The main power switch is on the back panel of the  
MultiSync LT81/LT100 Projector. By turning this switch on, the projector will go  
into its standby mode and the power light will glow amber. Only after you press the  
"On" button on the remote control or projector cabinet will the power light turn to  
green and the projector become ready to use.  
NOTE: To turn the projector on and off with just the back panel switch, use the menu  
and enable the "auto start" feature. (See page 67. )  
2. Select The Computer Or Video Source Press the "Video" (VCR, DVD player,  
document camera, or laser disc player), "S-video", "RGB" (computer), or "PC  
Card" button on the remote control to display the image. Or press the "Menu"  
button on the cabinet and use the icons to select your video source: "Video", "S-  
Video", "RGB" or "PC Card".  
3. Adjust The Image Size Adjust the size of the screen with the zoom ring lever on the  
projector.  
4. Focus Adjust the focus with the focus ring on the projector.  
5. Turning Off The Projector First press the "off" button on the remote control or press  
and hold down the "on/off" button on the cabinet for one second. The power light will  
glow amber. Then turn off the main power switch on the back panel. The power light  
will go out.  
IMPORTANT:  
The projector should be unplugged if it will not to be used for an extended period.  
To turn off the image and sound briefly (five minutes or less), use the "Picture Mute"  
button on the remote control instead of turning the projector off and on.  
The projector will display a black, blue image or focus pattern if no input signal is  
present.  
Do not turn the projector off and then immediately back on. The projector needs to  
cool for a minute before it can be restarted.  
OPERATION  
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Using The Menus  
1. Press the "Menu" button on the remote control or projector cabinet to display the Main Menu.  
2. Press the "Select" button on the projector cabinet or () () buttons on your remote control to highlight the menu for the item you want  
to adjust.  
3. Press the "Enter" button on the projector cabinet or the "Left Click" button on the remote control to select a submenu or item.  
4. Adjust the level or turn the selected item "on" or "off" by using the "Adjust" (+) or (–) buttons on the remote control or cabinet. The on-screen  
gauge will display your changes. The (+) button is "on" and (–) is "off".  
5. The change is stored until you adjust it again.  
6. Repeat steps 2-5 to adjust an additional item, or press “Right-Click” on your remote control to quit the menu display.  
YCbCr  
VIDEO/ S-VIDEO  
RGB  
NOTE: The following explains conditions that you will encoun-  
ter when operating your LT100 while displaying an SXGA  
(1280
ן
1024) image.  
When a menu or message is displayed while an SXGA image is  
projected, several lines of information will be lost.  
When the "LAMP USAGE 1000 HOURS" message appears, sev-  
eral lines of information will be lost.  
The "LAMP USAGE 1000 HOURS" message will not appear  
when the freeze button is activated.  
SXGA images inherently display a 5 to 4 ratio, resulting in an  
image that appears to be smaller and more square than the 4 to  
3 format commonly displayed.  
OPERATION  
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Menu Descriptions & Functions  
Source Menu  
Enables you to select a video source such as a VCR, DVD player, laser disk player, compu-  
ter or document camera depending on what is connected to your inputs. Press the "Select"  
button on the projector cabinet or () () buttons on your remote control to highlight the  
menu for the item you want to adjust.  
Video  
Selects device connected to your video input (VCR, document camera, laser disk player or  
DVD player).  
S-Video  
Selects device connected to S-Video input (Laser disk player, S-VHS VCR or DVD player).  
RGB  
Selects computer connected to your RGB input. Use the "Adjust" (+) or (–) buttons to  
select a standard* or one of five custom settings you can create and store. Press the "Enter"  
button on the cabinet or the "Left Click" button on the remote control to save your selection.  
NOTE: If a previously saved custom memory location is used with a new or different input signal  
it may not sync up, producing a distorted image, or no image at all. If so, follow the instructions  
below:  
1) Disconnect the signal cable so that there is no input signal. In this condition the on-screen  
message will be displayed.  
2) Select RGB standard from the source menu.  
3) Connect the signal cable again.  
NOTE: * Standard is normally used and it can be user changed and automatically recalled.  
PC CARD  
This feature enables you to make a presentation using the Viewer function with the optional  
LT Viewer board (VK-LT81 for LT81 / VK-LT for LT100) installed.  
Press the Mouse pad (+) or (-) buttons to select "START" for the image you want to display  
first and "SELECT FILE" for the file you want to select or "Select Slide" for the image you  
want to slide.  
OPERATION  
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Image Adjustment Menu  
Provides access to controls for your image and sound. Use the “Select” button on the projector cabinet or ()  
() buttons on your remote control to highlight the menu for the item you want to adjust.  
The volume, image mode, brightness, contrast, color, tint, sharpness and white balance controls are available for  
Video or S-Video sources.  
The volume, image mode, brightness, contrast, horizontal position, vertical position, white balance, alignment  
and auto picture controls are available for RGB source.  
Volume  
Use the “Adjust” (+) or (–) buttons to adjust the volume.  
Image Mode  
Use the "Select" button on the projector cabinet or () () buttons on your remote control to select the item you  
want to adjust.  
NOTE: Input and Display modes are not available for PC CARD.  
Gamma ............. Use the mouse pad (+) or (–) buttons to choose "Normal" when in a lighted room and "Natural  
1&2" when in a darkened room. "Natural 1" for better flesh tone; "Natural 2" for true repro-  
duction of middle tones.  
Input Mode ....... Use the mouse pad (+) or (–) buttons to choose "DOC CAM" for a document camera or other  
low APL input, "Standard Video" for a regular video picture such as NTSC, "RGB Signal" for  
an RGB source such as a computer, or "Y/Cb/Cr Signal" for a component video source such as  
a DVD player.  
Display Mode ... Use the mouse pad (+) or (–) buttons to choose "Normal Aspect" for normal video picture with  
a 4-to-3 aspect ratio and "Wide Aspect" for DVD's with a 16-to-9 aspect ratio.  
NOTE:  
1) Flicker may appear on a freeze-frame picture with a Video or S-Video source. If this happens, select the  
Document Camera mode using the Image mode icon on the Image Adjustment Menu, and then adjust the  
contrast and other items for an optimal image.  
2) A frame may freeze for a brief period of time when a video is played back in fast-forward or fast-rewind with  
a Video or S-Video source. If this happens, select the Natural mode (for cinema) using the Image Mode icon  
on the Image Adjustment Menu.  
OPERATION  
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Brightness  
Use the “Adjust” (+) or (–) buttons to adjust the brightness.  
Contrast  
Use the “Adjust” (+) or (–) buttons to adjust the contrast.  
Color*  
Use the “Adjust” (+) or (–) buttons to adjust the color.  
Tint*  
Use the “Adjust” (+) or (–) buttons to adjust the tint.  
Sharpness*  
Use the “Adjust” (+) or (–) buttons to adjust the sharpness.  
White Balance  
Use the Mouse pad (+) or (–) buttons to adjust the white balance.  
For Video/RGB ... Brightness for each color (RGB) is used to adjust the black level of the screen; Contrast for each  
color (RGB) to adjust the white level of the screen.  
For Y/Cb/Cr ........ Brightness for each color (Y/Cb/Cr) is used to adjust the white level of the screen; Contrast for  
each color (Y/Cb/Cr) to adjust the black level of the screen.  
Alignment  
Use the Mouse pad (+) or (–) buttons to adjust the horizontal and vertical position, "Picture", and "Fine Picture".  
Horizontal  
૽૽  
Position ........ Use the “Adjust” (+) button to move the image right; (–) to move it left.  
Vertical  
૽૽  
Position ........ Use the “Adjust” (+) button to move the image up; (–) to move it down.  
૽૽  
Auto Picture  
Use the “Adjust” (+) button to turn this feature on so “Picture” and “Fine Picture” adjustments are made automati-  
cally. Use the “Adjust” (–) button to turn this feature off so you can make “Picture and Fine Picture” adjustments  
manually.  
૽૽  
Picture Adjustment (when AUTO PICTURE is off)  
Use this icon with the “Fine Picture Adjustment” to fine tune the computer image or to remove any vertical banding that might  
appear. This function adjusts the clock frequencies to eliminate the vertical banding in the image. Press the “Adjust” (+) and (–)  
buttons until the banding disappears. This adjustment may be necessary when you connect your computer for the first time. This  
adjustment is made automatically when the Auto Picture is turned on.  
RGB AUTO PICTURE ON  
RGB AUTO PICTURE OFF  
૽૽  
Fine Picture (when AUTO PICTURE is off)  
Use this icon to adjust the clock phase or to reduce video noise, dot interference or cross talk. (This is evident when  
part of your image appears to be shimmering.) Use the “Adjust” (+) and (–) buttons to adjust the image. Use the Fine  
Adjustment only after the Picture Adjustment is complete. This adjustment is made automatically when the Auto  
Picture is turned on.  
NOTE:  
Color, Tint, and Sharpness controls will not work with an RGB source. The Tint control will not work with a PAL  
or SECAM source. The Color and Tint controls will work with a Y/Cb/Cr source.  
ૺૺ Alignment controls such as Horizontal and Vertical position controls, and Picture, Fine Picture and Auto Picture  
adjustments will not work with a Video or S-Video source.  
OPERATION  
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Power Menu  
Provides access to Lamp Usage information, the Auto Start, Power Management and On-  
screen Mute features. Use the “Select” button on the projector cabinet or () () buttons on  
your remote control to access a submenu. Then press “Adjust” (+) or (–) to choose a specific  
option.  
Lamp Usage  
This tells you how long the lamp has been in operation. It is recommended that you replace a  
lamp after 1000 hours of service. After you install a new lamp, select this icon and press and  
hold the “Power On” button on the remote control for ten seconds to reset the lamp clock back  
to zero.  
NOTE: The projector will turn off and go into stand by mode after 1100 hours of service. If this  
happens, press the "Power Off" button on the remote control for ten seconds to reset the lamp clock  
back to zero. Do this only after replacing the lamp.  
Auto Start  
Turns the projector on automatically when the main power switch is turned on. This elimi-  
nates the need to always use the “Power” button on the remote control or projector cabinet.  
Press (+) to turn this feature on and (–) to turn it off.  
Power Management  
When “Power Off” is on and there is no video input for five minutes or more, the projector  
will automatically turn itself off. Press the (+) to turn this feature on and (–) to turn it off.  
On Screen Mute  
Use the mouse pad (+) button to turn off the On Screen Mute ; (–) to restore it.  
The On screen Mute feature keeps the menu from displaying when the projector is turned  
on or when switching inputs.  
OPERATION  
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Settings Menu  
Enables you to set preferences and other operating options. Use the “Select” button on the projector cabinet or  
() () buttons on your remote control to access the submenu you want.  
Custom Memory  
This enables you to save your current settings for an RGB source in one of five memories, Custom 1-5.  
To change the STANDARD settings, proceed as follows:  
1. Connect your computer to the MultSync LT81/LT100.  
2. Select the "STANDARD" in RGB source.  
3. Adjust the horizontal/vertical position, Picture, and Fine Picture adjustments.  
4. Select the Custom Memory icon.  
5. Press the "Adjust" (+) or (–) buttons to choose a memory location, then press "Enter" on the cabinet or the "Left  
Click" on your remote control to save the new settings.  
If you do not want to change the STANDARD settings, first selct the Custom Memory icon, then do the same as  
step 5.  
Capture (with the optional viewer board installed only)  
When the Capture is selected, press "Enter" on the projector cabinet or Left Click button on the remote control  
to display "Execute" and "capture" an image from a source that is currently being displayed.  
When capturing is completed, "Completed" is displayed under the Capture icon.  
Unless a flash memory card is inserted into the slot of the viewer board, "No Card" is displayed. This means that  
the Capture feature is not available. The "Card Error" display means that the free space of the flash memory card  
is insufficient for saving images. Make more space available on the card by erasing unwanted images with your  
PC. The number of images that can be captured depends on the size of the flash memory card.  
NOTE: Be sure not to turn off the power or remove the flash memory card unless "Completed" is displayed. Doing so  
could cause a loss of the data in the flash memory card or damage to the card itself.  
Background  
Use this feature to display a black, blue screen or focus pattern when no signal is available. Press the mouse pad (+) or (-) buttons to  
choose the back screen you want. Press "Enter" on the cabinet or the "Left Click" on your remote control to save your change.  
Projection  
This reorients your image based upon projector location. Press the “Adjust” (+) or (–) button until it is correct.  
Press “Enter” on the cabinet or the “Left Click” on your remote control to save your change. The options are:  
front floor projection, rear ceiling projection, rear floor projection, and front ceiling projection.  
Language  
Use the “Adjust” (+) or (–) to choose one of six languages for on-screen instructions. Press “Enter” on the cabinet or the  
“Left Click” on your remote control to save your change. The options are: English, German, French, Italian, Spanish and  
Swedish.  
Reset  
Changes all adjustments to the factory preset levels for each source individually. To activate, you must hold down the “Adjust”  
(+) button on the cabinet or remote control for at least two seconds. The adjustments that will be reset are horizontal and vertical  
control, picture and fine picture adjustment (for the current source only), brightness, contrast, color, tint, and sharpness.  
When custom setting is selected, reset changes all adjustments to the factory preset levels of the current input signal for  
selected custom memory location. This will not return to your previous custom setting and will delete your saved settings  
from custom memory.  
OPERATION  
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Using the Viewer function  
If you use the Viewer function on the projector, you must first install the  
optional LT Viewer board (VK-LT or VK-LT81) in the projector and set  
up the exclusive software included with the VK-LT or VK-LT81 kit.  
See the user's manual included with the Viewer board for installing  
and uninstalling the software.  
Mounting the Optional LT81 Viewer Board (VK-LT81)  
2. Put the board in place and secure it with the four screws supplied  
with the VK-LT81 board.  
Before mounting the viewer board, you must first switch off the  
main power and unplug the power cable.  
Connector  
To install the Viewer board:  
1. Remove the board cover using a flat-head screwdriver.  
P O W E R  
S T A T U S  
/ O F F  
O N  
+
/ O F F  
O N  
+
E N T E R  
E N T E R  
-
-
S E L E C T  
S E L E C T  
M E M U  
M E M U  
3. Align the catches of the supplied viewer board cover with the holes.  
4. Push down the viewer board cover.  
Catch  
P O W E R  
S T A T U S  
P O W E R  
O F F  
/
O N  
S T A T U S  
+
E N T E R  
/ O F F  
O N  
+
-
S E L E C T  
E N T E R  
M E M U  
-
S E L E C T  
M E M U  
OPERATION  
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Mounting the Optional LT100 Viewer Board (VK-LT)  
Before mounting the viewer board, you must first switch off the  
main power and unplug the power cable.  
To install the VK-LT Viewer board:  
1. Turn the projector so that the bottom is up.  
2. Remove the screw from the board cover.  
3. Put the board in place and secure it with the four screws supplied  
with the VK-LT board.  
4. Attach the two foot caps to adjust projector height. After complet-  
ing, put the projector back in the original position.  
OPERATION  
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Projecting Slides  
Orientation of flash memory card and CompactFlash™ (CF™)  
memory card insertion.  
To Project the Slides (the presentation materials)  
1. Insert a flash/CF memory card into the PC card slot.  
* To eject the flash memory card, press the Eject button.  
The flash memory card has a front and a back side and the flash/CF  
memory card is designed to be inserted in only one orientation. The  
card is designed so that it cannot be inserted in reverse. Trying to  
force the card into slot may result in damage to the card and the card  
slot. See the flash/CF memory card manual for information about the  
orientation of the flash/CF memory card.  
NOTE: Should the card be difficult to insert, do not forcefully  
push the card in.  
2. Select the PC card as a source.  
* Press the Menu button on the remote control or projector cabi-  
net and select "PC CARD" from the Source menu.  
* If there is no flash/CF memory card in the card slot, the projec-  
tor displays a blue back or black back image.  
LT100  
LT81  
3. Select "Select File" or "Select Slide".  
* Use the mouse pad (+) or (-) button on the remote control to  
select "Select File" or "Select Slide".  
* The type of flash/CF memory card required for use in the projector  
is a Type II PCMCIA-ATA flash memory card for LT100 and CF  
card for LT81. Never use a different type of card, doing so may  
result in damage to the card or PC card slot.  
4. Select a file or a slide.  
NOTE: The mouse pad (+) or (–) button is valid only when the  
Use the mouse pad (+) or (–) button on the remote control to  
select the file or slide you want to display and press the Enter  
button on the cabinet or the Left Click button on the remote con-  
trol. See the following pages for more details.  
Multi Cursor  
Menu button is lit.  
Table Cursor  
File  
File  
File  
File  
2
1
3
4
presentation  
presentation  
presentation  
A
presentation  
B
C
D
File  
File  
File  
6
5
7
presentation  
presentation  
presentation  
E
presentation  
F
G
H
* The selected file or slide will be displayed.  
NOTE: If you select "Start" and press the Enter button on the  
cabinet or the Left Click button on the remote control, the slides  
will be looped. To use the Start feature, you must first set on the  
software included with the LT Viewer board.  
CompactFlash and CF are trademarks of SanDisk Corporation.  
OPERATION  
76  
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77  
Selecting a File from a List of Files  
3. Use the mouse pad (+) or (–) button on the remote control to  
move the Multi-Cursor (blue box) to the file you want to dis-  
play a slide from, and press the Enter button on the cabinet or  
the Left Click button on the remote control.  
* The Viewer feature allows you to store one or more presentation  
materials in a single flash/CF memory card. Each material is referred  
to as a "file" or "slide".  
To select a file from a list of files  
1. Press the Menu button on the remote control or cabinet to select  
"PC Card".  
File  
File  
File  
File  
2
1
3
4
Multi Cursor  
File  
File  
File  
File  
6
5
7
8
2. Use the mouse pad (+) or (-) button on the remote control to se-  
lect "Select File" and press the "Enter" button on the cabinet or  
the Left Click button on the remote control.  
* This will display the first slide of the selected file.  
3. Use the mouse pad (+) or (–) button on the remote control to  
move the Table-Cursor (yellow box) to the slide you want to  
display and press the Enter button on the cabinet or the Left  
Click button on the remote control.  
NOTE: A maximum of 16 indexes can be switched with "Select  
File". The last displayed file, which is always exclusively for use  
of Capture, will be displayed during capturing only.  
When 17 or more indexes exist in the flash/CF memory card and  
you wish to display them, move the index to be displayed to the  
beginning of the file indexes with "Editing file indexes" under  
"Files" of the software for Viewer.  
Table Cursor  
presentation  
presentation  
presentation  
presentation  
B
A
C
D
Selecting a Slide from a List of Slides (Table)  
presentation  
presentation  
presentation  
presentation  
F
E
G
H
To select a slide from a list of slides  
1. Press the Menu button on the remote control or cabinet to select  
"PC Card".  
* This will display the selected slide.  
2. Use the mouse pad (+) or (-) button on the remote control to select  
"Select Slide" and press the "Enter" button on the cabinet or the  
Left Click button on the remote control.  
NOTE: The Slide (+) and (–) button on the remote control  
can be also used to select a file or slide, or to turn pages.  
OPERATION  
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79  
Switching Slides  
Capturing the displayed image  
To switch slides, press "SLIDE +" or "SLIDE –" button. This will  
cancel the Auto Play mode. To set the Auto Play mode, press the Menu  
button to select “Start” from the Source menu and press the Enter  
button on the cabinet or the Left Click button on the remote control.  
This is valid only when the Auto Play mode is selected. See more  
information about “Auto Play mode” for the Help file included with the  
Viewer board.  
The Viewer feature allows you to capture a screen image and store  
it to a flash/CF memory card.  
To capture a screen image and store it to a flash memory card;  
Select "Capture" from the Settings menu and press the Enter button  
on the cabinet or Left Click button on the remote control.  
* To view the captured image  
*
SLIDE– returns to the previous slide.  
SLIDE+ advances to the next slide.  
NOTE: Editing tasks such as deleting the data inside the flash memory  
card cannot be accomplished with the projector. Use the exclusive soft-  
ware on your PC for this purpose. If you accidentally delete data re-  
quired for playback, playing back the data is not possible.  
1. Select "Select File" from the Source menu and display a list  
of files.  
* A thumbnail (reduced image) of the first captured image  
will be displayed.  
Effect Sound (LT100 only)  
The Viewer function allows you to play back effect sound for the slide.  
Playing back effect sound can be accomplished during the switching  
slides or files only. To use this feature, you must first specify the effect  
sound with the supplied software.  
You can adjust volume by using the Volume button.  
2. Use the mouse pad (+) button to move the Multi-Cursor (blue  
box) to the last file and press the Enter button on the cabinet or  
the Left Click button on the remote control.  
Display Digital Images  
Displaying a picture from the projector is possible if the picture  
meets one of the following requirements:  
* The picture is stored on an MS-DOS formatted ATA flash  
memory card.  
File  
File  
File  
File  
2
1
3
4
Multi Cursor  
* The picture is stored as a compatible format.  
File  
File  
File  
File  
6
5
7
8
The on-board Viewer searches the PC Card directory for a JPEG or  
BMP formatted images.  
NOTE:  
* Up to 128 images can be recognized as slides for one direc-  
tory.  
* To use special effects, read images from a flash/CF memory  
card and edit them using the supplied software, then store them  
to another flash/CF memory card.  
* This will display the image you captured first.  
NOTE: The menu indicating that capturing is now performing  
will be displayed during capturing. During this time do not re-  
move the flash/CF memory card nor turn off the power of the  
projector. Doing so may destroy the data of the flash/CF memory  
card.  
* When the flash memory card becomes full, replace it with a new  
card.  
OPERATION  
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4 M A I N T E N A N C E  
81  
This section describes the simple maintenance procedures you should follow  
to replace the lamp and replace the batteries in the remote control.  
LT100  
LT81  
Replacing The Lamp  
After your lamp has been operating for 1000 hours or longer, the “sta-  
tus” light in the cabinet will turn red. Even though the lamp may still be  
working, replace it at 1000 hours to maintain optimal projector perform-  
ance.  
Step 3  
CAUTION  
Lamp cover  
• DO NOT TOUCH THE LAMP immediately after it has been used. It will  
be extremely hot. Allow at least one hour for the lamp to cool before  
handling.  
• DO NOT REMOVE ANY SCREWS except the lamp cover set screw  
and two lamp case screws. You could receive an electric shock.  
Step 4  
Step 5  
• Turn off the main power to the projector and disconnect the power cord.  
Allow at least one hour for the lamp to cool.  
Lamp housing  
• The projector will turn off and go into stand by mode after 1100 hours of  
service. If this happens, be sure to replace the lamp. 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.  
Lamp replacement procedure  
1. Switch off the main power and unplug the power cord.  
2. Turn the main unit so that the bottom is up.  
3. Loosen the lamp cover retaining screw.  
4. Slide the lamp cover in the direction of the arrow and remove it.  
CAUTION: Do not use a lamp other than the NEC replacement lamp.  
Order this from your NEC dealer using your projector's model num-  
ber.  
Step 6  
5. Loosen the three retaining screws for the lamp housing.  
(There is an interlock on the lamp housing to prevent the risk of electri-  
cal shock. Do not attempt to circumvent this interlock.)  
6. Holding the handle, pull the lamp housing forward and take it off.  
7. Install the new lamp housing and fasten with the three screws.  
8. Fasten the three screws for the lamp housing.  
Step 7,8  
9. Install the lamp cover back in its original position and fasten with the  
retaining screw.  
10. Reset the lamp time.  
Select the lamp usage time menu, then press the ON button on the re-  
mote controller and hold it down for at least ten seconds.  
NOTE: If resetting the lamp clock back to zero after 1100 hours of  
service, press the "Power Off" (not "Power On") button on the remote  
control for ten seconds. Do this only after replacing the lamp.  
Step 9  
MAINTENANCE  
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83  
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.  
Operating Range  
Range of 360˚ and a distance of 23 feet (7 m) from the remote sensor.  
30˚  
Operation distance  
of 23 feet (7m)  
30˚  
MAINTENANCE  
84  
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85  
Cette section décrit les procédures simples d’entretien que vous aurez à  
suivre pour remplacer la lampe et remplacer les piles de la télécommande.  
LT100  
LT81  
Remplacement de la lampe  
Lorsque la lampe a été utilisée pendant 1000 heures ou plus, le voyant “Status” (état) du  
coffret s’allume. Même si la lampe peut encore fonctionner, remplacez-la au bout de  
1000 heures pour conserver une performance optimale de votre projecteur.  
Etape 3  
Etape 4  
PRECAUTIO N  
Couvercle de  
la lampe  
NE TOUCHEZ PASA LA LAMPE juste après qu’elle a été utilisée. Elle est très  
chaude. Laissez-la refoidir pendant au moins une heure avant de la manipuler.  
• NE RETIREZAUCUNEVIS mis à part la vis qui fixe le couvercle de lampe  
et les deux vis du compartiment de lampe. Vous risquez de recevoir une  
décharge éléctrique.  
• Mettez le projecteur hors circuit et débranchez le cordon d’alimentation.  
Laissez refroidir la lampe pendant au moins une heure.  
• Le projecteur s’éteindra et restera en attente après 1100 heures d’utilisation.  
Dans ce cas, remplacez la lampe. Si vous continuez d’utiliser la lampe après  
1000 heures d’utilisation, l’ampoule peut se briser et des brisures de verre  
peuvent être éparpillées dans le compartiment de la lampe. Ne les touchez pas  
car elles peuvent vous blesser. Dans ce cas, contactez votre revendeur NEC  
afin de procéder au remplacement de la lampe.  
Boîtier de  
lampe  
Etape 5  
Pour remplacer la lampe :  
1. Mettre l'appareil sous tension et débrancher le cordon d'alimentation.  
2. Retourner l'unité principale pour avoir accès à la partie inférieure.  
3. Desserrer le vis de fixation du couvercle de la lampe.  
4. Faire glisser le couvercle de la lampe dans la direction de la flèche et le déposer.  
ATTENTION : ne pas utiliser une autre lampe que la lampe de remplacement NEC.  
Etape 6  
Commander celle-ci auprès du détaillant NEC à l'aide du numéro de modèle du projecteur.  
5. Desserrer les trois vis du boîtier de lampe.  
(Il y a un mécanisme de déclenchement dans le boîtier de lampe pour empêcher  
une décharge électrique. Ne pas essayer de circonvenir ce mécanisme)  
6. En maintenant la poignée, tirer le boîtier de lampe vers l'avant et l'extraire.  
7. Installer le nouveau boîtier de lampe et le fixer avec les trois vis.  
8. Serrer les trois vis du boîtier de lampe.  
Etape 7,8  
9. Réinstaller le couvercle de la lampe dans sa position d'origine et le fixer avec les vis de  
fixation.  
10. Initialiser le temps de la lampe.  
Sélectionner le menu de temps d'utilisation de la lampe, puis appuyer sur la touche ON  
sur la télécommande et la maintenir enfoncée pendant au moins dix secondes.  
REMARQUE : Pour remettre à zéro l’horloge de lampe après 1100 heures d’utilisation, appuyez sur la  
touche “Power Off” (alimentation désactivée)(et non “Power On” (alimentation activée)) de la télécommande  
pendant dix secondes. Effectuez cette opération uniquement lorsque vous avez remplacé la lampe.  
Etape 9  
MAINTENANCE  
86  
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87  
Installation des piles de la télécommande  
1. Appuyez fermement et retirez le couvercle des piles en le faisant glisser.  
2. Retirez les deux piles usagées et installez de nouvelles piles (AA). Assurez-vous de respecter la  
polarité (+/–) des piles.  
3. Remettez le couvercle des piles en le faisant glisser, jusqu’à ce qu’il s’emboîte.  
Portée de fonctionnement  
Portée de 360 degrés et d'une distance de 7 mètres du capteur le télécommande.  
30˚  
Operation distance of 7m  
30˚  
MAINTENANCE  
88  
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5 T R O U B L E S H O O T I N G  
89  
This section helps you resolve problems you may encounter while setting up or using your MultiSync LT81/LT100 Projector.  
Status Light Messages  
Condition  
Status  
OFF  
Normal  
On Continually  
The projector lamp has exceeded 1000 hours of operation and should be replaced.  
Blinking very rapidly  
The lamp housing is not correctly installed. Install it correctly.  
(On and off in a cycle of 1 sec.)  
Blinking rapidly  
(On and off in a cycle of 4 sec.)  
The temperature protector has been triggered. If the room temperature is high, move the projector  
to a cooler location. If the temperature inside the projector is high, check the cooling fan ventila-  
tion hole and the ventilation hole on the bottom of the projector. If any of the holes are blocked,  
remove whatever is blocking them.  
The temperature protector has been triggered. If you switch the main Power switch Off, then  
immediately switch it On again, sometimes the power does not come on. If this happens, wait one  
minute, then switch the power On again.  
Blinking Slowly  
The cooling fan has stopped. Contact your NEC dealer for service.  
(On and off in a cycle of 8 sec.)  
Blinking very slowly  
The lamp is not turned on.  
(On and off in a cycle of 12 sec.)  
• The projector was turned off and back on too quickly. Turn off the projector, wait one  
minute, then turn the projector back on. Or the lamp is burnt out.  
TROUBLE SHOOTING  
90  
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91  
Common Problems & Solutions  
Problem  
Check These Items  
Does not turn on  
• Check that the power cable is plugged in and that the power switch on the back panel is on.  
• Ensure that the lamp cover and lamp housing are installed correctly. (See page 81.)  
• Check the status light to see if the projector has overheated or the lamp usage exceeds 1100  
hours.  
No picture  
Use the menu icons to select your source (Video, S-Video, RGB or PC Card). (See pages 61 and 62.)  
• Ensure your cables are connected properly.  
• Use icons to adjust the brightness and contrast.  
• Remove the lens cap.  
• Is the POWER indicator blinking?  
• Reset the settings or adjustments to factory preset levels using the RESET icon on the Settings  
Menu.  
Image isn’t square  
to the screen  
• Reposition the projector to improve its angle to the screen.  
• Adjust the focus. (See page 36.)  
Picture is blurred  
• Reposition the projector to improve its angle to the screen.  
• Ensure that the distance between the projector and screen is within the adjustment range of the lens.  
Problem  
Check These Items  
Image is scrolling  
vertically, horizontally  
or both  
• Use icons to select the source you want to input.  
• If PC signal is set up in Custom Setting, select corresponding Custom Setting (Custom 1,  
Custom 2, etc.).  
• Install new batteries. (See page 83.)  
• Make sure there are no obstacles between you and the projector.  
• Stand within 23 feet (7m) of the projector.  
Remote control does  
not work  
See the Status Light message chart on pages 89 and 90.  
Status indicator is lit or  
blinking  
If “Auto Picture” is off, turn it on. If “Auto Picture” is on, turn it off and balance the image with the  
Picture Adjustment icon and Fine Picture Adjustment icon.  
Cross color in RGB  
mode  
To Contact Your NEC Service Representative, Call 1-800-836-0655  
TROUBLE SHOOTING  
92  
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6 S P E C I F I C A T I O N S  
93  
This section provides technical information about the MultiSync LT81/LT100 Projector's performance.  
Optical  
DMDTM  
Lens  
Single Chip Digital Micromirror Device(DMDTM), 800
ן
600 dots (LT81) / 1024
ן
768 dots (LT100)  
Manual zoom, manual focus  
F 2.44 f =26-30 mm  
Lamp  
Metal halide lamp 280 W  
610-7620 mm (24-300 inches) diagonal  
1.2 – 12.3m  
Image Size  
Projection Distance  
Electrical  
Inputs  
Video (NTSC / PAL / SECAM / NTSC 4.43)  
RGB LT81: (H : 15 – 60 kHz, V : 50 – 85 Hz)  
LT100: (H : 15 – 85 kHz, V : 50 – 85 Hz)  
RGB: 60 MHz  
Video Bandwidth  
Color Reproduction  
Horizontal Resolution  
Full color, 16.7 million colors simultaneously.  
NTSC /YCbCr 550 (LT81 : 500), PAL 350, SECAM 350, NTSC4.43 350 TV lines  
RGB LT81: 800 dots horizontal, 600 dots vertical  
LT100: 1024 dots horizontal, 768 dots vertical  
Power Requirement  
Input Current  
100 – 120 / 220 – 240 VAC, 50 / 60 Hz  
4.6 A (100 – 120 VAC) / 2.2 A (220 – 240 VAC)  
Mechanical  
Dimensions (LT81)  
9.7" (W)
ן
5.1" (H)
ן
12.8" (D) / 246 mm (W)
ן
130 mm (H)
ן
325 mm (D) (Including lens hood and feet)  
9.7" (W)
ן
5.1" (H)
ן
12.7" (D) / 246 mm (W)
ן
130 mm (H)
ן
310 mm (D) (Not including lens hood)  
Dimensions (LT100)  
Net Weight  
9.8" (W)
ן
5.6" (H)
ן
13.4" (D) / 250 mm (W)
ן
142 mm (H)
ן
340 mm (D) (Including lens hood and feet)  
9.8" (W)
ן
5.6" (H)
ן
12.6" (D) / 250 mm (W)
ן
142 mm (H)
ן
320 mm (D) (Not including lens hood)  
LT81: 9.9 lbs / 4.5 kg  
LT100: 10.8 lbs / 4.9 kg  
Operational Temperatures  
Projector: 41° – 95°F (5°to 35°C), 30 – 85% humidity  
Remote control: 32° – 140°F (0° to 60°C)  
Remote mouse receiver: 32° – 140°F (0° to 60°C)  
Regulations  
UL Approved (UL 1950, CSA 950)  
Meets DOC Canada requirements  
Meets FCC Class A requirements  
Digital Light Proccessing, DLP, Digital Micromirror  
Device and DMD are trademarks of Texas Instruments.  
SPECIFICATIONS  
94  
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95  
Cabinet Dimensions (LT81)  
12.2"  
(310)  
0.6"  
(15)  
5.1"  
(129.6)  
3.9"  
(98)  
0.7"  
(17)  
0.4"  
(11)  
Lens Center  
0.9"  
3.4"  
(23)  
(85.6)  
MAX  
Lens Center  
Unit : inch (mm)  
SPECIFICATIONS  
96  
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97  
Cabinet Dimensions (LT100)  
MAX  
0.79"  
(20)  
12.6"  
(320)  
5.6"  
(142)  
4.5"  
(114)  
0.53"  
(13.5)  
Lens Center  
Lens Center  
Unit : inch (mm)  
SPECIFICATIONS  
98  
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99  
D-Sub Pin Assignments  
PC 15-Pin mini D-Sub  
Pin No. Signal to be connected  
PC 15-Pin mini D-Sub  
1
Red  
2
4
3
1
5
9
6
10  
8
7
2
3
Green  
Blue  
15 14 13 12  
11  
4
GND  
5
GND  
6
7
8
9
10  
11  
12  
13  
14  
15  
Red GND  
Green GND  
Blue GND  
No Connection  
Digital GND  
GND  
No Connection  
Horizontal Sync  
Vertical Sync  
No Connection  
SPECIFICATIONS  
100  
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101  
Timing Chart  
Y/N  
Signal  
Resolution  
Refresh  
Rate (Hz)  
F.H.  
(kHz)  
Dot  
Clk(MHz)  
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
NTSC  
PAL  
640
ן
480  
768
ן
576  
768
ן
576  
640
ן
350  
640
ן
400  
640
ן
400  
640
ן
400  
640
ן
480  
640
ן
480  
640
ן
480  
640
ן
480  
640
ן
480  
640
ן
480  
640
ן
480  
640
ן
480  
640
ן
480  
720
ן
350  
720
ן
400  
720
ן
400  
720
ן
350  
60  
15.734  
15.625  
15.625  
37.86  
31.47  
37.86  
35  
-
50  
-
SECAM  
VESA  
IBM  
50  
-
85.08  
70  
31.5  
25.175  
31.5  
30.24  
25.175  
25.175  
25.175  
31.334  
30.24  
31.5  
31.5  
31.49  
36  
VESA  
MAC  
VESA  
IBM  
85.08  
66  
59.94  
60  
31.47  
31.47  
31.47  
34.97  
35  
MAC  
MAC  
MAC  
VESA  
VESA  
IBM  
60  
66.7  
66.67  
72.81  
75  
37.86  
37.5  
75  
39.375  
43.269  
31.469  
31.4469  
37.927  
39.44  
VESA  
IBM  
85.01  
70.09  
70.09  
85.04  
87.85  
28.322  
28.322  
40  
IBM  
VESA  
IBM  
35.5  
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
Y
Y
Y
#
IBM  
720
ן
400  
87.7  
39.375  
35.16  
35.5  
36  
VESA  
VESA  
VESA  
VESA  
VESA  
MAC  
VESA  
VESA  
VESA  
IBM  
800
ן
600  
56.25  
60.32  
72.19  
75  
800
ן
600  
800
ן
600  
37.879  
48.077  
46.88  
40  
50  
800
ן
600  
49.5  
56.25  
57.283  
44.9  
65  
800
ן
600  
85.06  
74.55  
43interlace  
60  
70.07  
72.03  
74.93  
75.03  
85  
53.674  
49.725  
35.5  
832
ן
624  
1024
ן
768  
1024
ן
768  
1024
ן
768  
1024
ן
768  
1024
ן
768  
1024
ן
768  
1024
ן
768  
1024
ן
768  
1152
ן
870  
1152
ן
900  
1152
ן
900  
1280
ן
1024  
1280
ן
1024  
1280
ן
1024  
1280
ן
1024  
1280
ן
1024  
1280
ן
1024  
48.363  
57.476  
58.131  
60.241  
60.023  
68.677  
49.7  
75  
1024
ן
768 and 832
ן
624 images are com-  
pressed into 800
ן
600 on LT81.  
79  
MAC  
VESA  
VESA  
SGI  
MAC  
SUN  
80  
78.75  
94.5  
70  
Y
#
60.4  
75.6  
# 1152
ן
870, # 1152
ן
900 and # 1280
ן
1024  
images are compressed into 1024
ן
768 on  
LT100.  
68.7  
100  
92.94  
105.6  
107.35  
108  
118.5  
135  
135  
135  
#
65.95  
70.05  
60  
61.769  
71.736  
63.9  
#
SGI  
#
SGI  
#
VESA  
MAC  
HP  
60.02  
69.89  
72.01  
75.03  
76.11  
64.286  
74.882  
78.125  
79.976  
81.13  
#
#
NOTE: Images marked with a # are not supported  
by LT81.  
#
VESA  
SUN  
#
SPECIFICATIONS  
102  
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103  
PC Control Command Reference  
Command Codes  
No. Function  
Code Data Description  
01  
02  
03  
04  
05  
06  
07  
08  
09  
10  
11  
12  
13  
14  
15  
Video  
03H No  
04H No  
C6H No  
27H No  
08H No  
14H No  
47H No  
45H No  
11H No  
43H No  
DEH No  
DFH No  
DCH No  
DDH No  
21H No  
Same as remote  
Same as remote  
Same as remote  
Same as remote  
Same as remote  
Same as remote  
Same as remote  
RGB  
S-Video  
PC CARD  
Power On  
Power Off  
Picture Mute  
Audio Mute  
Onscreen Mute  
Reset  
(available only when Viewer kit is connected to)  
D Up  
Same as remote  
Same as remote  
Same as remote  
Same as remote  
Same as remote  
D Down  
D Right  
D Left  
D Right Up  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
D Left Up  
22H No  
23H No  
24H No  
4CH No  
4BH No  
20H No  
33H No  
34H No  
35H No  
36H No  
19H No  
1AH No  
1BH No  
1CH No  
Same as remote  
Same as remote  
Same as remote  
Same as remote  
Same as remote  
Same as remote  
D Right Down  
D Left Down  
Freeze  
Slide +  
(available only when PC CARD is selected)  
(available only when PC CARD is selected)  
Slide –  
Front Floor  
Front Ceiling  
Rear Floor  
Rear Ceiling  
Auto Start On  
Auto Start Off  
Auto Picture On  
Auto Picture Off  
Input Mode Select 1DH Yes  
0
1
0
1
2
Standard VIDEO (available only when VIDEO/S-VIDEO is selected)  
Doc Camera  
Normal  
31  
Gamma Select 1EH Yes  
Natural 1  
Natural 2  
SPECIFICATIONS  
104  
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105  
Command Codes (continued)  
No. Function  
Code Data Description  
32  
Display Mode Select 1FH Yes  
0
1
Normal Aspect  
Wide Aspect  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
Power Management On 15H No  
Power Management Off 16H No  
Digital Zoom W  
Digital Zoom T  
Brightness  
Contrast  
89H No  
8AH No  
60H Yes  
62H Yes  
64H Yes  
66H Yes  
68H Yes  
6AH Yes  
70H Yes  
6EH Yes  
Same as remote  
Same as remote  
0 (00H) –– 63 (3FH)  
0 (00H) –– 63 (3FH)  
0 (00H) –– 63 (3FH)  
-32 (E0H) –– 31 (1FH)  
0 (00H) –– 63 (3FH)  
0 (00H) –– 63 (3FH)  
-32 (FFE0H)– 31 (001FH)  
0 (00H) –– 127 (7FH)  
Color  
Tint  
Sharpness  
Audio Volume  
Picture Adj  
Fine Picture  
H Position  
V Position  
72H Yes -128 (80H) –– 127 (7FH)  
74H Yes  
-64 (C0H) –– 63 (3FH)  
47  
48  
Lamp Reset  
3FH No  
3DH Yes  
Lamguage Select  
0
1
2
3
4
5
6
English  
German  
French  
Italian  
Spanish  
Swedish  
Japanese  
WHITE BALANCE  
49  
50  
51  
52  
53  
54  
Sub Brightness R  
Sub Brightness G  
Sub Brightness B  
Sub Contrast R  
Sub Contrast G  
Sub Contrast B  
75H Yes 0 (00H) –– 63 (3FH)  
76H Yes 0 (00H) –– 63 (3FH)  
77H Yes 0 (00H) –– 63 (3FH)  
78H Yes 0 (00H) –– 63 (3FH)  
79H Yes 0 (00H) –– 63 (3FH)  
7AH Yes 0 (00H) –– 63 (3FH)  
SPECIFICATIONS  
106  
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107  
Cable Connection  
Communication Protocol  
Baud rate:  
Data length:  
Parity:  
9600 bps  
8 bits  
No parity  
One bit  
None  
Stop bit:  
X on/off:  
Full duplex  
Communications  
procedure:  
If the CPU of the projector has received the data correctly, it returns an ACK(C5H). If the received data is not correct, the CPU returns a  
NAK(CAH), then the following status:  
Receiving success:  
Receiving failure:  
Err 01:  
C5  
CA Err  
Command Error (command not supported)  
Checksum Error  
Err 02:  
Err 03:  
Busy (command not acceptable)  
Err 04:  
Parameter Error ( parameter data abnormal)  
PC Control Connector (DIN-8P)  
To RxD of PC  
NOTE: If failing in powering-on, the CPU returns the following NAKs:  
44  
8
6
7
CA Err 1  
Err 1 8X (Apply the corresponding bit.)  
Bit 0: Lamp housing is not attached correctly  
Bit 1: Fan stoppage  
5
4
3
2
1
Bit 2: Overheated  
Bit 3: Lamp lighting failure  
To GND of PC  
To TxD of PC  
SPECIFICATIONS  
108  
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