NEC LT84 User Manual

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Ultra-Portable Projector

MultiSync LT84/LT140

User’s Manual

IMPORTANT INFORMATION

Precautions

Please read this manual carefully before using your NEC MultiSync LT84/LT140 Projector and keep the manual handy for future reference. Your serial number is located under the name plate label on the left side of your MultiSync LT84/LT140. Record it here:

CAUTION

To turn off main power, be sure to remo ve the plug from power outlet. The power outlet socket should be installed as near to the equipment as possible, and should be easily accessible.

CAUTION

TO PREVENT SHOCK, DO NO T OPEN THE CABINET . NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED NEC SERVICE PERSONNEL.

This symbol warns the user that uninsulated voltage within the unit may be sufficient to cause electrical shock. Therefore, it is dangerous to make any kind of contact with any part inside of the unit.

This symbol alerts the user that important information concerning the operation and maintenance of this unit has been provided. The information should be read carefully to avoid problems.

3. GSGV Acoustic Noise Information Ordinance:

The sound pressure level is less than 70 dB (A) according to ISO 3744 or ISO 7779.

RF Interference

WARNING

The Federal Communications Commission does not allow any modifications or changes to the unit EXCEPT those specified by NEC Technologies in this manual. Failure to comply with this government regulation could void your right to operate this equipment. This equipment has been tested and found to comply with the limits for a Class A digital de vice, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense.

In UK, a BS approval power cable with moulded plug has a Black (five Amps) fuse installed for use with this equipment. If a po wer cable is not supplied with this equipment please contact your supplier.

WARNING

TO PREVENT FIRE OR SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. DO NOT USE THIS UNIT’S GROUNDED PLUG WITH AN EXTENSION CORD OR IN AN OUTLET UNLESS ALL THREE PRONGS CAN BE FULLY INSERTED. DO NOT OPEN THE CABINET. THERE ARE HIGH-VOLTAGE COMPONENTS INSIDE. ALL SERVICING MUST BE DONE BY QUALIFIED NEC SERVICE PERSONNEL.

DOC Compliance Notice

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

E–2

Important Safeguards

These safety instructions are to ensure the long life of your projector and to prev ent fire and shock. Please read them carefully and heed all warnings.

Installation

1. For best results, use your projector in a darkened room.

2. Place the projector on a flat, level surf ace in a dry area away from dust and moisture.

3. Do not place your projector in direct sunlight, near heaters or heat radiating appliances.

4. Exposure to direct sunlight, smoke or steam can harm internal components.

5. Handle your projector carefully . Dropping or jarring can damage internal components.

6. Do not place heavy objects on top of the projector.

7. If you wish to have the projector installed on the ceiling: a. Do not attempt to install the projector yourself. b. The projector must be installed by qualified technicians

in order to ensure proper operation and reduce the risk of bodily injury.

c. In addition, the ceiling must be strong enough to support

the projector and the installation must be in accordance with any local building codes.

d. Please consult your dealer for more information.

Power Supply

1. The projector is designed to operate on a power supply of 100-120 or 200-240 V 50/60 Hz A C. Ensure that your power supply fits this requirement before attempting to use your projector.

2. Handle the pow er cable carefully and a void e xcessive bending. A damaged cord can cause electric shock or fire.

3. If the projector is not to be used for an extended period of time, disconnect the plug from the power outlet.

Cleaning

1. Unplug the projector before cleaning.

2. Clean the cabinet periodically with a damp cloth. If heavily soiled, use a mild detergent. Never use strong detergents or solvents such as alcohol or thinner.

3. Use a blower or lens paper to clean the lens, and be careful not to scratch or mar the lens.

Lamp Replacement

• T o replace the lamp , f ollow all instructions provided on page E-33.

• 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 ma y be scattered in the lamp case. Do not touch them as the pieces of glass may cause injury. If this happens, contact your NEC dealer for lamp replacement.

• Allow a minimum of ONE minute to elapse between turning the lamp off and on.

High voltage is applied to the lamp immediately when the power is turned on.

Therefore turning the power off and quickly back on may shorten the life of your lamp and result in damage to your projector.

E–3

Fire and Shock Precautions

1. Ensure that there is sufficient ventilation and that vents are unobstructed to prevent the build-up of heat inside y our projector. Allow at least 3 inches (10cm) of space betw een your projector and a wall.

2. Prevent foreign objects such as paper clips and bits of paper from falling into your projector. Do not attempt to retrieve any objects that might fall into your projector. Do not insert any metal objects such as a wire or screwdriver into your projector. If something should fall into your projector, disconnect it immediately and have the object remov ed by a qualified NEC service personnel.

3. Do not place any liquids on top of your projector.

Warnings

• Do not look into the lens while the projector is on. Serious damage to your eyes could result.

• Keep any items such as magnifying glass out of the light path of the projector. The light being projected from the lens is extensive, therefore any kind of abnormal objects that can redirect light coming out of the lens, can cause unpredictable outcome such as fire or injury to the eyes.

• Do not cover the lens with the supplied lens cap or equivalent while the projector is on. Doing so can lead to melting of the cap and possibly burning your hands due to the heat emitted from the light output.

• Do not hold the lens part. Doing so may cause the risk of injuly.

For the optional full function remote control with the laser pointer

• 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.

E–4

TABLE OF CONTENTS

1. INTRODUCTION

Introduction to the MultiSync LT84/LT140 Projector ....E-6

Getting Started ............................................................ E-6

Getting to Know Your MultiSync LT84/LT140 Projector

Front Features.........................................................E-7

Rear Features ......................................................... E-7

Bottom Features......................................................E-7

Top Features ...........................................................E-8

Terminal Panel Features ......................................... E-9

Remote Control Features...................................... E-10

2. INSTALLATION

Setting Up Your Projector........................................... E-12

Selecting a Location ..................................................E-12

Using a Tabletop or Cart ............................................ E-12

Distance Chart...........................................................E-13

Ceiling Installation ..................................................... E-14

Reflecting the Image.................................................. E-14

Wiring Diagram..........................................................E-15

3. OPERATION

General Controls ....................................................... E-17

Using the Menus........................................................ E-17

Using a USB Mouse ..................................................E-17

Menu T ree.................................................................. E-18

Menu Elements.......................................................... E-19

Menu Descriptions & Functions.................................E-20

Source Select ............................................................E-20

RGB ......................................................................E-20

Video/S-Video ....................................................... E-20

PC Card Viewer.....................................................E-20

Adjustments...............................................................E-20

Picture...................................................................E-20

Volume..................................................................E-20

Image .................................................................... E-20

Auto Adjust ....................................................... E-21

Position.............................................................E-21

Pixel Adjust....................................................... E-21

Resolution......................................................... E-21

Color T emper ature ................................................ E-21

Keystone ............................................................... E-21

Factory Default...................................................... E-21

Image Options ...........................................................E-21

Image Mode .......................................................... E-21

Aspect Ratio ..................................................... E-21

Video Mode...........................................................E-22

Gamma.............................................................E-22

Noise Reduction ...............................................E-22

Color Matrix ...................................................... E-22

Projector Options.......................................................E-22

Menu ..................................................................... E-22

Language .............................................................. E-22

Source Display......................................................E-22

Projector Pointer ...................................................E-22

....E-7

Setup .........................................................................E-23

Orientation ............................................................ E-23

Background...........................................................E-23

Signal Select ......................................................... E-23

Auto Start .............................................................. E-23

Power Panagement............................................... E-23

Power Off Confirmation.........................................E-23

Mouse Settings .....................................................E-23

Keystone Save ......................................................E-23

White Segment ..................................................... E-23

Clear Lamp Hour Meter ........................................ E-23

PC Card Viewer Options .......................................E-24

Capture Options....................................................E-24

Tools ..........................................................................E-24

Capture .................................................................E-24

PC Card Files........................................................ E-25

ChalkBoard ...........................................................E-25

Help ...........................................................................E-25

Contents................................................................ E-25

Source Information................................................ E-25

Projector Information............................................. E-25

Using the PC Card Viewer Fucntion ..........................E-26

Features................................................................E-26

Inserting and Ejecting a CompactFlash™ Card....E-26

Installing the PC Card Viewer

Software................................................................E-27

Starting Up the PC Card Viewer Software

on your PC (PC Card Viewer Utility 1.0) ............. E-27

Operating the PC Card Viewer Function

from the Projector (playback)..............................E-28

Capturing Images Displayed on the Projector.......E-30

Viewing Digital Images.......................................... E-31

Uninstalling the PC Card Viewer Software............ E-31

Terminology........................................................... E-32

4. MAINTENANCE

Replacing the Lamp................................................... E-33

Remote Control Battery Installation...........................E-34

Operating Range .......................................................E-34

5. TR OUBLESHOO TING

Status Light Messages .............................................. E-35

Common Problems & Solutions................................. E-35

When Using the PC Card Viewer Function................E-36

6. SPECIFICATIONS

Optical/Electrical/Mechanical..................................... E-37

Cabinet Dimensions .................................................. E-38

D-Sub Pin Assignments............................................. E-40

Timing Chart .............................................................. E-41

PC Control Codes...................................................... E-42

Cable Connection ...................................................... E-43

E–5

CompactFlash is a trademark of San Disk Corporation.

1. INTRODUCTION

Introduction to the MultiSync LT84/LT140 Projector

This section introduces you to your new MultiSync LT84 (SVGA)/ LT140 (XGA) Projector describes the features and controls.

Congratulations On Your Purchase Of The MultiSync LT84/ LT140 Projector

The MultiSync LT84/LT140 is one of the very best projectors available today. The MultiSync LT84/LT140 enables you to project precise images up to 300 inches across (measured diagonally) from your PC or Macintosh computer (desktop or notebook), VCR, D VD player, document camera, a laser disc player, or PC Card Viewer. You can use the projector on a tabletop or cart, you can use the projector to project images from behind the screen, and the projector can be permanently mounted on a ceiling*1. The remote control can be used wirelessly.

Features you’ll enjoy:

• Simple set up and operation.

• Hot air blown from the vents does not bother the audience during your presentation since the vents are located on the front and bottom.

• A high-performance AC120 watt P-VIP lamp.

• A wireless card remote control that can be stored in the projector.

• The manual zoom control enables you to adjust the image to be between 25 and 300 inches (measured diagonally).

• Keystone correction allows you to correct trapezoidal distortion so that the image is square.

• Y ou can choose between video modes depending on your source: “normal” for a typical picture, “natural” for true color reproduction.

• The built-in PC Card Viewer allows you to start your presentation even when a PC is not available at the site.

• The “Capture” enables you to capture rhe current projected image.

• An image can be projected from in front or behind a screen, and the projector can even be installed on the ceiling.

• NEC’s exclusive Advanced AccuBlend intelligent pixel blending technology - an extremely accurate image compression technology - offers a crisp image with SXGA (128021024) resolution*3 . You can select any point on the screen with the pointer and enlarge the selected area.

• Supports most IBM VGA, SVGA, XGA*2 , SXGA(with Advanced AccuBlend)*3, Macintosh, component signal (YCbCr / YPbPr) or any other RGB signals within a horizontal frequency range of 15 to 85 kHz and a vertical frequency range of 50 to 85 Hz. This includes NTSC, P AL, PAL60, SECAM and NTSC4.43 standard video signals.

• The supplied card remote control can be used without a cable, and you can even use the optional full function remote control and mouse adapter to operate your PC or Macintosh mouse wirelessly from across the room with the built-in remote mouse receiver.

• You can control the projector with a PC using the PC Control port.

• The contemporary cabinet design is light, compact, easy to carry , and complements any office, boardroom or auditorium.

• Eight kinds of pointers are available for your presentation.

• USB terminal allows USB mouse operation*4.

*1 Do not attempt to mount the projector on a ceiling yourself.

The projector must be installed by qualified technicians in order to ensure proper operation and reduce the risk of bodily injury. In addition, the ceiling must be strong enough to support the projector and the installation must be in accordance with any local building codes. Please consult your dealer for more information.

*2 An XGA image (10242768) is converted into an 8002600 crisp

image with NEC’s Advanced AccuBlend on LT84.

*3 An SXGA image (128021024) is converted into a 10242768

crisp image with NEC’s Advanced AccuBlend on LT140.

*4 The USB terminal meets the USB1.0 specification and accepts a

USB mouse only.

Getting 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 CDROM and revie w the user’ s manual. This ma y save you time 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.

NOTE: Composite video standards are as follows: NTSC: U.S. TV standard for video in U.S. and Canada.

PAL: TV standard used in Western Europe. PAL60: TV standard used for NTSC playback on PAL TVs. SECAM: TV standard used in France and Eastern Europe. NTSC4.43: TV standard used in Middle East countries.

E–6

E–7

Top Features

SOURCE AUTO ADJUST

STATUS POWER

1 Source Button

Use this button to select a video source such as a PC, VCR, DVD player or PC Card Viewer (CompactFlash card installed).

2 Auto Adjust Button

Use this button to adjust Position-H/V and Pixel Clock/Phase for an optimal picture. Some signals may not be displayed correctly or take time to switch to another.

3 Menu Button

Displays the main menu for operation.

SELECT

OFF

7 Status Indicator

When this is lit red continually, it’ s w arning you that the projection lamp has exceeded 1000 hours of service. After this light appears, it is advisable to replace the projection lamp as soon as possible.(See page E-33) 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 cover is not attached properly or the projector is overheated. See the Status Light Messages on page E-35 for more details.

4 Select (▲▼§ ©) / (+) (–) Buttons

▲▼: Use these buttons to select the menu of the item you wish

to adjust.

§ ©: Use these buttons to change the level of a selected menu

item. A press of the © button executes the selection. When no menus appear, these § © buttons work as a volume control. When the pointer is displayed, these § © ▲▼ buttons move the pointer.

5 Enter Button

Executes your menu selection and activates items selected from the menu.

6 Cancel Button

Press this button to exit “Menus”. Press this button to return the adjustments to the last condition while you are in the adjustment or setting menu.

8 Power Indicator

When this indicator is green, the projector is on; when the indicator is amber, it is in standby mode.

9 Power Button

Use this button to turn the power on and off when the power is supplied and the projector is in standby mode.

NOTE: To turn off the projector, press and hold this button for a minimum of two seconds.

E–8

Terminal Panel Features

OFF

PC CARD ACCESS

PC CONTROL

USB

MOUSE OUT

RGB INPUT S-VIDEO

56 7 89 10

This panel is located on the left side and is where you connect your cables.

1 USB (Mouse) Terminal

Connect a commercially available mouse that supports USB. You can operate the menu or PC Card Viewer with the USB mouse via this terminal. Note that this terminal is not used with a computer and that there may be some brands of USB mouse that the projector does not support.

2 PC Card Access Indicator

Lights while accessing a CompactFlash memory card.

Slot for Kensington MicroSaver Security System

VIDEO AUDIO

(

MONO)R

RGB Input/ Component Input Connector (Mini D-Sub 15 pin)

Connect your PC or other RGB equipment such as IBM or compatible computers. Use the signal cable that’s supplied to connect to a PC. Or connect a Macintosh or compatible computer here using the signal cable and the pin adapter that is supplied. This also serves as a component input connector which allows you to connect a component video output of a component equipment such as a DVD player.

8 S-Video Input (Mini DIN 4 Pin)

Here is where you connect the S-Video input from an external source like a VCR.

NOTE: S-Video provides more vivid color and higher resolution than the traditional composite video format.

3 Eject Button

Press to eject a CompactFlash memory card.

4 PC Card Access Slot

Insert a CompactFlash memory card here.

5 PC Control Port (Mini DIN 8 Pin)

Use this port to connect your PC to control your projector. This enables you to use your PC and serial communication protocol to control the projector. If you are writing your o wn program, typical PC control codes are on page E-42. A cap is put on the port at the factory. Remo v e the cap when using the port.

9 Video Input (RCA)

Connect a VCR, DVD player, laser disc player, or document camera here to project video.

10 Left Channel/Mono Audio Input Jack (RCA)

This is the left channel audio input for stereo sound coming from video equipment or audio system. This also serves as your monaural audio input. (Video and S-video only)

Right Channel Audio Input Jack (RCA)

This is the right channel audio input for stereo sound. (Video and S-video only)

NOTE: Although stereo Audio input jacks are provided, the pro-

6 Mouse Output Port (Mini DIN 8 Pin)

Not available when the supplied card remote is used.

jector will only produce Mono sound. This is due to one speaker limitation of the projector.

Use this port to operate your computer’s mouse functions from the NEC optional full function remote control. When your computer is connected here with the NEC optional full function remote control (LT40RT), the remote sensors on the projector cabinet will receive your mouse commands.

11 Built-in Security Slot ( )

This security slot supports the MicroSaver® Security System. MicroSaver® is a registered trademark of Kensington Microware Inc. The logo is trademarked and owned by Kensington Microware Inc.

E–9

Remote Control Features

R-CLICK

HELP

PIC-MUTEPOINTER

MAGNIFY

SOURCE AUTO ADJ.

COMPUTER PROJECTOR

POWER

OFF ON

LASER

CANCEL

Wireless Card Remote Control (supplied)

NOTE: For the supplied card remote control, r emove the transparent insulation tape by pulling it before use. See page E-34 for battery installation.

CR2025

Full Function Remote Control LT40RT (optional)

SOURCE

MAGNIFY

SELECT

POINTER

AUTO

ADJ.

PIC.

MUTE

HELP

1 2

8 9

14 18

Wireless Card Remote Control

1 Source Button

Press to select a video source.

2 Auto Adjust Button

Use this button to adjust Position-H/V and Pixel Clock/Phase for an optimal picture. Some signals may not be displayed correctly, or in some cases it may take some time for a source to be switched to another.

3 Menu Button

Displays the main menu for operation.

RD-361E

Remote Jack

Not available on LT84/LT140

4 Select (▲▼§ ©) / Mouse / (+) (–) Buttons

▲▼: Use these buttons to select the menu of the item you wish

to adjust.

§ ©: Use these buttons to change the level of a selected menu

item. A press of the © button executes the selection. When no menus appear, these § © buttons work as a volume control. When the pointer is displayed, these § © ▲▼ buttons move the pointer. T he Mouse button is a vailable on the full function remote control only.

NOTE: The Mouse Output port is not available on the card remote control because mouse codes are not output.

5 Cancel/ Right Click Button

Press this button to exit “Menus”. Press this button to return the adjustments to the last condition while you are in the adjustment or setting menu. The Right-Click button is available on the full

E–10

function remote control only.

6 Enter Button

Executes your menu selection and activates items selected from the menu.

7 Magnify Button

Use the (+) or (–) button to adjust the image size up to 400%. When the Pointer is displayed, the magnified image is displayed at the center of the Pointer. When the Pointer is not displayed, the magnified image is displayed at the center of the screen.

8 Pointer Button

Press this button to display one of the eight pointers; press again to hide the pointer.

9 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.

10 Help Button

Provides information about operation and adjustment procedures or the set information for the current menu or adjustment during menu operation. This also displays information how to use the Help.

Wireless Full Function Remote Control (Optional)

You can use your optional full function remote control wireless to operate your projector. With the mouse output port connected to your computer, you can also use the projector’s remote control to operate your computer’s mouse wireless. (See page E-16 to connect your computer to the mouse output port.)

NOTE: If you are using a Macintosh computer, you can click either the right or left button to activate the mouse.

11 Power On And Off

If power is applied, you can use this button to turn your projector on and off.

NOTE: To turn off the projector, press and hold the POWER ON button for a minimum of two seconds.

12 LED

Flashes when any button is pressed.

13 Computer/Projector Select

Use this button to switch between “Computer” and “Projector”. When “Computer” is selected, the remote control works as your computer mouse. In this mode only Mouse pad, Laser, R-Click and L-Click buttons are available.

14 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).

16 Laser Pointer

Beams a laser light when “Laser” button is pressed.

17 Infrared Transmitter

Direct the remote control toward the remote sensor on the projector cabinet.

18 Mouse Pad(▲▼§ ©)

W orks as a mouse for y our projected computer image. This pad is also used to adjust position. This pad selects the submenu you want to adjust. After you make your on-screen menu selection, use this pad to adjust the level up or down.

Remote Control Precautions

• Handle the remote control carefully.

• If the remote control gets wet, wipe it dry immediately.

• Avoid excessive heat and humidity.

• If you will not be using the remote control for a long time, re-

move the batteries.

• Do not place the batteries upside down.

NOTE: Before you use the card remote control for the first time, be sure to remove the insulation tape from the card remote control.

* Keep the coin cell battery out of reach of children so as not to

allow them to swallow the cell battery.

Also observe the following when using the optional full function remote:

• Do not look into the laser pointer while it is on.

• Do not point the laser beam at a person.

NOTE:

The optional full function remote contr ol package (L T40RT) includes:

1) Full function remote control

2) Mouse adapter for Macintosh

3) Mouse adapter for IBM PS/2

4) Serial cable

5) Two batteries (AA)

6) Remote control case The LT40RT optional remote control mouse kit can be obtained

from your dealer at additional cost.

15 Left Click Button

Use this button to enter your menu selection. It works the same as the “Enter” button on the cabinet or the card remote control.

E–11

2. INSTALLATION

SELECT

POWER

STATUS

OFF

SOURCE AUTO

This section describes how to set up your MultiSync LT84/LT140 projector and how to connect video and audio sources.

Setting up Your Projector

Your MultiSync LT84/LT140 Projector is simple to set up and use. But before you get started, you must first:

1. Determine the image size.

2. Set up a screen or select a non-glossy white wall onto which you can project your image.

Carrying The Projector: Always carry your projector in the supplied soft carrying case.

You must put the projector in the soft carrying case with the lens upward as shown below. This is to prevent the lens from damage.

Upward

Band

Bottom

2. Connect the power cable, remove the lens cap and turn the projector on. (If no input signal is available, the projector will display a background image.)

3. Ensure that the projector is square to the screen.

4. Move the projector left or right to center the image horizontally on the screen.

Top view

Screen

5. To center the image vertically, lift the front edge of the projector and press the One-Push Tilt buttons on the front side of the projector, just above the feet, to release the Front Adjustable feet. (There is approximately 5 degrees of up and down adjustment for the front of the projector.)

Side view

Screen

Carrying Case

NOTE: Do not put a notebook computer in the soft carrying case. Doing so can cause damage to the computer. When moving the projector or when it is not in use, cover the lens cap.

Attaching the lens cap to the lens hood with the supplied string and rivet.

Rivet

Lens cap

String

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 25" (0.6 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 feet (12.2 m) from the wall or screen.

PO W

STATU

/ O

SELEC

U R

POWER

STATUS

/ OFF

SELECT

SOURCE AUTO

6. If necessary, adjust the front or rear feet to properly position the projected image on the screen. If the projected image does not appear square to the screen then use keystone correction for proper adjustment. The Lever-Type Adjustable Rear foot height can be changed up to 3 degrees.

SOURCE AUTO

SELECT

OFF

STATUS

POW

Using a Tabletop or Cart

1. Place your projector on a flat level surface at the optimal distance from the screen or wall so you realize the size image you want. (Avoid having bright room lighting or sun light directly on the screen or wall where you’ll be projecting the image.)

7. Adjust the size of the image using the Zoom ring on the lens.

E–12

Distance Chart

Screen center

Projector base

Screen bottom

Screen

Unit (inch) A=C/cosα B=3.7H / 25.4 C(XGA:tele)=(2.41 x H)-2.0 or C(XGA:wide) x 1.2 C(XGA:wide)=(2.0 x H)-2.0 C(SVGA:tele)=(2.43 x H)-1.75 or C(SVGA:wide) x 1.2 C(SVGA:wide)=(2.0 x H)-1.9 D=E/2 E=H/4 x 3 a=H/4 x 5

A: Distance between lens center and screen center B: Vertical distance between lens center and screen bottom

(screen top for ceiling mount)

C: Horizontal throw distance between screen surf ace and pro-

jector lens

D: Vertical distance between screen center and screen bottom

(screen top for ceiling mount)

E: Screen Height

Screen (inch)

LT84: 1.87”(47.6mm) LT140: 1.98”(50.4mm)

Unit (mm), H= inch A=C/cosα B=3.7H C(XGA:tele)={(2.41 x H)-2.0} x 25.4 or C(XGA:wide) x 1.2 C(XGA:wide)={(2.0 x H)-2.0} x 25.4 C(SVGA:tele)={(2.43 x H)-1.75} x 25.4 or C(SVGA:wide) x 1.2 C(SVGA:wide)={(2.0 x H)-1.9} x 25.4 D=E/2 E=H/4 x 3 a=H/4 x 5

Installation Angle

The installation angle for the projector must not exceed +/-15˚. Deviating from this angle could degrade the performance of the projector and may cause reliability problems.

S-VGA (LT84)

a H E C(mm) C(inch) C(mm) C(inch) B(mm) B(inch) B(mm) B(inch)

Screen Size (inch) Projection Distance

Screen size (Diagonal) Screen Width Height of screen WIDE TELE WIDE TELE

25 20 15 – – 1190 46.9 – – 74 2.9 40 32 24 1600 63.0 1930 76.0 117 4.6 117 4.6 60 48 36 2420 95.3 2910 114.6 176 6.9 176 6.9

80 64 48 3240 127.6 3900 153.5 235 9.3 235 9.3 100 80 60 4060 159.8 4890 192.5 294 11.6 294 11.6 120 96 72 4880 192.1 5870 231.1 352 13.9 352 13.9 150 120 90 6110 240.6 7350 289.4 440 17.3 440 17.3 200 160 120 8170 321.7 9820 386.6 587 23.1 587 23.1 240 192 144 9820 386.6 11790 464.2 705 27.8 705 27.8 300 240 180 12280 483.5 – – 881 34.7 881 34.7

V. Distance between Lens Center and Screen Bottom

XGA (LT140)

Screen Size (inch) Projection Distance

a H E C(mm) C(inch) C(mm) C(inch) B(mm) B(inch) B(mm) B(inch)

Screen size (Diagonal) Screen Width Height of screen WIDE TELE WIDE TELE

25 20 15 – – 1170 46.1 – – 74 2.9

40 32 24 1580 62.2 1910 75.2 119 4.7 119 4.7

60 48 36 2400 94.5 2890 113.8 178 7.0 178 7.0

80 64 48 3220 126.8 3870 152.4 237 9.3 237 9.3 100 80 60 4030 158.7 4850 190.9 297 11.7 297 11.7 120 96 72 4850 190.9 5830 229.5 356 14.0 356 14.0 150 120 90 6080 239.4 7300 287.4 445 17.5 445 17.5 200 160 120 8120 319.7 9750 383.9 593 23.3 593 23.3 240 192 144 9750 383.9 11710 461.0 712 28.0 712 28.0 300 240 180 12200 480.3 – – 890 35.0 890 35.0

NOTE: Distances may vary +/–5%.

V. Distance between Lens Center and Screen Bottom

E–13

Ceiling Installation

Projector base

Screen top

Screen center

LT84: 1.87”(47.6mm) LT140: 1.98”(50.4mm)

WARNING

• Installing your 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.

• 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 side or the front of the projector.

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 ▲▼ button on your remote control to correct the orientation. (See page E-23.)

Reflecting the Image

Using a mirror to reflect your projector’s image enables you to enjoy a much larger image. Contact your NEC dealer if you need a mirror. If you’re using a mirror and your image is inverted, use the “Menu” and “Select” buttons on your projector cabinet or ▲▼ buttons on your remote control to correct the orientation. (See page E-23.)

E–14

Wiring Diagram

USB

PC CARD ACCESS

PC CONTROL

MOUSE OUT

RGB INPUT S-VIDEO

VIDEO AUDIO

(

MONO)R

E–15

When using a Macintosh with the projector, set the DIP switches of the supplied pin adapter according to your resolution. After setting, restart your Macintosh. See the following pages for setting of the DIP switches.

• When using with a Macintosh, SVGA(8002600)/ XGA(10242768) is recommended if your Macintosh supports this mode.

• When using with a Macintosh PowerBook, output may not be set to 8002600 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 Monitor Mode

Number of DIP switch Resolution 13" multi-scan mode /16"-13" ON ON ON ON 17" multi-scan mode /19"-13" ON ON ON 21” multi-scan mode /21"-13" ON ON ON 13" fixed mode /640x480 ON ON VGA/SVGA mode ON ON 16" fixed mode /832x624 ON ON 19" fixed mode /1024x768 ON ON 21" fixed mode /1152x870 ON ON ON ON

NOTE: For settings other than display modes supported by your Macintosh and the projector, use of the DIP switch may bounce an 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 the projector and your Macintosh are connected with the pin adapter and the supplied signal cable (mini DSub 15-pin connector) and then restart your Macintosh.

123456

Examples of DIP switch setting

17" multi-scan mode VGA/SVGA mode 19" fixed mode

654 321

321

654321

654

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.

Connecting Your DVD Player

You can connect your projector to a DVD player with 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 x 3 cable to connect your DVD player to the RGB INPUT connector on the projector. 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 projector.

3. Turn on the projector and the DVD player.

NOTE: Refer to your DVD pla yer’s owner’s manual for more infor mation about your DVD player’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 projector. To make these connections, simply:

1. Turn off the power to the 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 V ideo input on your projector . Use standard RCA audio patch cords to connect the audio from your VCR or laser disc player to the 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 r equir ements.

Connecting Your Computer to the Mouse Output P ort

(only when using the optional full function remote control)

NOTE: To use the Mouse Output port, you need the optional serial cable, the optional mouse adapter(for IBM PS/2 or Macintosh), and the optional full function remote control. The built-in remote mouse receiver enables you to operate your computer’s mouse functions from the optional full function remote control. It is a great convenience for clicking through your computer generated presentations. To connect the mouse output port:

1. Turn off your computer.

2. For PCs: Remove your current mouse and connect the optional serial cable from the mouse output 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 mouse output port’s serial cab le, and connect the projector to your mouse port.

3. When the built-in remote mouse receiver is available, it will disable your regular mouse, disconnect the serial cable and restart your computer.

MOUSE

REMOTE

PC CONTROL

OUT

CONTROL INPUT

AUDIO RGB INPUT 1

AUDIO RGB INPUT 2

S-VIDEO

MONO

VIDEO

Serial cable (included with the optional full function remote control)

MOUSE

REMOTE

PC CONTROL

OUT

CONTROL INPUT

AUDIO RGB INPUT 1

AUDIO RGB INPUT 2

S-VIDEO

MONO

VIDEO

Serial cable (included with the optional full function remote control)

NOTE:Some computers or softwar e progr ams may not work with the MOUSE OUT port.

IBM PC/AT

Macintosh

IBM PS2

E–16

3.OPERATION

This section describes how to select a computer or video source, how to adjust the picture, and how to customize the menu or projector settings.

General Controls

Before you turn on your projector, ensure that the computer or video source is turned on and that your lens cap is removed.

1. Turn on the Projector

Plug the supplied power cable in the wall outlet. The projector will go into its standby mode and the power indicator will glow amber. Only after you press the “On” button on the projector cabinet or the optional full function remote control will the power indicator turn to green and the projector become ready to use.

NOTE: To turn the projector on by plugging in the power cable, use the menu and enable the “Auto Start” feature. (See pa ge 23.)

2. Select the Computer, Video Source or PC Card Viewer

Press the Source button on the remote control or the projector cabinet to select “Video” (VCR, document camera, or laser disc player), S-Video”, “RGB” (computer or DVD with component output) or “PC Card Viewer” (CompactFlash Card) to display the image. Or press the “Menu” button on the remote control or the cabinet and use the menu to select your video source: “Video”, “S-V ideo”, “RGB”, or “PC Card Viewer”.

NOTE:The standard video signal NTSC4.43 and PAL60 must be manually selected from the pull-down menu for Video System on Setup because it cannot be automatically detected.

3. Adjust the Image Size and the Focus

Use the Zoom ring to adjust the image size, then use the Focus ring knob to obtain the best focus. Use the “Magnify” button (+) or (-) on the remote control to make the image larger up to 400%.

4. Turning off the Projector

First press and hold the POWER button on the cabinet or the “OFF” button on the remote control for a minimum of two seconds. The power indicator will glow amber. Then, unplug the power cable. The power indicator 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 instead of turning the projector off and on.

• The projector will display a black, blue image or logo 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.

Using the Menus

NOTE: The on-scr een menu may not be displayed corr ectly while interlaced motion video image is projected.

1. Press the “Menu” button on the remote control or projector cabinet to display the Main Menu.

NOTE: When using a USB mouse, click the mouse button to display the main menu. For other operations, do the same way as you use your PC mouse.

2. Press the ▲▼ buttons on the card remote control, the mouse pad

on the full function remote control or the projector cabinet to highlight the menu for the item you want to adjust or set.

3. Press the © button or the “Enter” button on the projector cabinet or the card remote control or the “Left Click” button on the optional full function remote control to select a submenu or item.

4. Adjust the level or turn the selected item on or off by using “Select” § or © buttons on the cabinet, the card remote control or the “Mouse pad” on the optional full fucntion remote control. The on-screen slide bar will show you the amount of increase or decrease.

5. The change is stored until you adjust it again. ENTER: Stores the setting or adjustments. CANCEL: Retur n to the previous screen without storing settings

or adjustments.

6. Repeat steps 2-5 to adjust an additional item, or press “Cancel” on the projector cabinet or the remote control to quit the menu display.

Using a USB Mouse

Using a USB mouse gives you a smooth operation. A commercially available USB mouse is required.

NOTE:There may be some brands of USB mouse that the projector does not support

Operate the Menus using the USB mouse

Mouse Cursor

When connecting a USB mouse to the projector, you get a mouse cursor on the screen. Unless you use your USB mouse within 10 seconds, the mouse cursor disappears.

Menu Display

Clicking with a mouse button displays the main menu. Clicking displays the pull-down menu.

To close the menu, click anywhere in the background.

Adjusting and Setting Display

You can select a menu item and click with a mouse button to make adjustments and setting.

Examples

Click (or press and hold) the mouse button § or © to adjust the brightness. Or click and drag the mouse button on the slide bar horizontally to adjust it.

To save the adjustments, click . The display is closed. If you click anywhere in the background while displaying adjustment and setting menu or dialog box, you will get the main menu at the clicking point.

E–17

Menu Tree

Main Menu Sub Menu Items

Adjustable Sources

Mein Menu Source Select

Adjustments Image Options Projector Options Tools Help

NOTE:

Adjustable sources R=RGB

V=Video/S-Video C=Component All=All sources (including PC Card Viewer)

Source Select RGB

Video S-Video PC Card Viewer

Adjustments Picture

Volume Image Color Temperature Keystone Factory Default

Image Options Image Mode

Video Mode

Projector Options Menu

Setup

Tools Capture

PC Card Files ChalkBoard

Help Contents

Source Information Projector Information

V, C

All All

Brightness Contrast Color Hue Sharpness

Auto Adjust Position Pixel Adjust Resolution

All Data/Current Signal

Aspect Ratio

Gamma Noise Reduction Color Matrix

Language Source Display Projector Pointer

Orientation Background Signal Select Auto Start Power Management Power Off Confirmation Mouse Button Mouse Sensitivity Clear Lamp Hour Meter Keystone Save White Segment PC Card Viewer Options Capture Options

Source Name Input T erminal Horizontal Frequency Vertical Frequency Sync Polarity Signal T ype Video T ype Sync Type Interlace Resolution Aspect Ratio Gamma Noise Reduction Color Matrix Matrix Type

Lamp Hour Meter

R, V, C R, V, C V, C V, C V

R R R R, V, C

V, C

R, V, C V, C V, C

E–18

Menu Elements:

Title bar

Highlight Solid triangle

Tab

Setup Page1 Page2 Page3

Orientation

Front Floor

Background

Blue

Signal Select

RGB VIDEO S-VIDEO

Close button

Auto Auto Auto

Radio button

Setup Page1

Page2 Page3

Mouse

Button

Right Hand Left Hand

Sensitivity

Fast Medium

Clear Lamp Hour Mater

Slide bar

Brightness

Slow

OK Cancel

Auto Start Power Management

Power Off Confirmation Keystone Save White Segment

OK Cancel

Cancel Button

OK Button

Check box

○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○

Menu windows or dialog box typically have the following elements:

Title bar: Indicates the menu title. X Close button: Click to close the window with saving changes. (USB mouse only) Highlight: Indicates the selected menu or item. Solid triangle: Indicates further choices are available. A highlighted triangle indicates the item is active. Tab: Indicates a group of features in a dialog box. Clicking on any tab brings its page to the front. Radio button: Use this round button to select an option in a dialog box. Check box: Place a checkmark in the square box to turn the option On. Slide bar: Indicates settings or the direction of adjustment. OK button: Press to confirm your setting. You will return to the previous menu. Cancel button: Press to cancel your setting. You will return to the previous menu.

E–19

Menu Descriptions & Functions

Source Select

Source Select RGB

Video S-Video PC Card Viewer

RGB

Selects the computer connected to your RGB or component signal.

NOTE: An optional component cable (Component V cable) is needed for a component signal.

Video

Selects what is connected to your V ideo input-VCR, laser disc player , DVD player or document camera.

S-Video

Selects what is connected to your S-Video input-VCR, DVD player, or laser disc player.

PC Card Viewer

This feature enables you to make presentations using a CompactFlash card that contains captured images and slides created with the exclusive PC Card Viewer Utility contained in the CD-R OM. See pa ge E27 for installing the PC Card Viewer Utility. The starting screen for the PC Card Viewer varies depending on the settings of the Setup's Page 3. See Setup on page E-24.

NOTE: Even if you switch the current PC Card Viewer source to another source, the curr ent slide is retained. When you r eturn back to the PC Card Viewer, you will get the slide that has been retained.

A launcher will appear when you press the MENU button.

Enables you to select a video source such as a VCR, D VD player , laser disc player , computer 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.

Jump: Displays a list of slides while you are playing back. Select: Displays a list of folders while you are playing back. Delete: Deletes a captured slide(s) or all the captured slides

in the selected folder.

Vie w: Hides the tool bar while you are playing back. Click-

ing with the right button of a mouse shows it again.

Adjustments

Adjustments Picture

Volume Image Color Temperature Keystone Factory Default

Brightness

Provides access to controls for your image and sound. Use the ▲▼ buttons on your remote control to highlight the menu for the item you want to adjust.

Picture (not available for PC Card Viewer)

Brightness: Adjusts the brightness level or the back raster inten-

sity.

Contrast: Adjusts the intensity of the image according to the

incoming signal.

Color: Increases or decreases the color saturation level (not

valid for RGB).

Hue: Varies the color level from +/- green to +/-blue. The

red level is used as reference. This adjustment is only valid for Video and Component inputs (Not RGB).

Sharpness: Controls the detail of the image for Video (Not for

RGB and Component).

Play/Stop

Drag

Jump

Select

Delete

View

The launcher is a tool bar including the following buttons:

Drag: Drags to move the tool bar. (for USB mouse opera-

tion only) Prev: Returns to the previous slide or folder. Next: Advances to the next slide or folder. Play/Stop: Plays back automatically or manually depending

on the setting on PC Card V iewer Options of the men u.

This allows you to stop Auto Play while you are play-

ing back and to resume playing from the selected slide

or folder when “Auto Play” is selected. This allows

you to move on to the next slide when “Manual Play”

is selected.

Volume (not available for PC Card Viewer and RGB)

Adjusts the sound level of the projector.

Image (not available for PC Card Viewer)

Image Auto Adjust

Position Pixel Adjust Resolution

Allows for adjustments of the image position and stability.

E–20

Auto Adjust:

When “Auto Adjust” is set to “On”, the projector automatically determines the best resolution for the current RGB input signal to project an image using NEC’s Advanced AccuBlend Intelligent Pixel Blending Technology. The image can be automatically adjusted for position and stability; “Horizontal Position”, “V ertical Position” and “Pix el Adjust. ” On: Automatically adjusts image “Horizontal Position”, “Ver-

tical Position” and “Pixel Adjust.”

Off: User can adjust the image display functions (“Horizontal

Position”, “V ertical P osition” and “Pixel Adjust”) manually.

Horizontal/Vertical Position (when Auto Adjust is off):

Adjusts the image location from left to right. This adjustment is made automatically when the Auto Adjust is turned on.

Keystone

This feature corrects the keystone (trapezoidal) distortion to make the top of the screen longer or shorter to be the same as the bottom. Use the § or © buttons on the slide bar to correct the keystone (trapezoidal) distortion.

NOTE: The maximum keystone angle that can be corrected is 15 degrees upward and downward with the projector placed horizontally. However, a picture will be blurred if you correct the keystone angle beyond +12 degrees or more for SXGA signal on LT84.

Factory Default

Restore to Factory Setting

All Data Current Signal

Pixel Adjust (when Auto Adjust is off):

Displays the Clock and Phase adjustments. Clock: Use this item with the “Auto Adjust on” to fine tune the

computer image or to remove any vertical banding that might appear. This function adjusts the clock frequencies that eliminate the horizontal banding in the image. Press the § 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 Adjust is turned on.

Phase: Use this item 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

§ and © buttons to adjust the image. Use “Phase” only after the “Clock” is complete. This adjustment is made automatically when the Auto Adjust is turned on.

Resolution (when Auto Adjust is off):

This allows you to activ ate or deactivate the Adv anced AccuBlend feature.

Auto: Turns on the Advanced AccuBlend feature. The projec-

tor automatically reduces or enlarges the current image to fit the full screen.

Native: Turns off the Advanced AccuBlend feature. The projec-

tor displays the current image in its true resolution.

NOTE: While you are displaying an image with higher resolution than the projector's native resolution, even when you are in the Native mode, the image is displayed full screen using the Advanced AccuBlend feature.

Color T emperatur e

This feature adjusts the color temperature using the slide bar. Move the slide bar to the right to increase the color temperature for a bluish image; to the left to decrease it for a reddish image.

Color Temperature

Cancel

Changes all adjustments and setting to the factory preset for each source individually except Lamp Usage Hours. (To reset the lamp usage time, see “Clear Lamp Hour Meter” on page E-33.

All Data: Reset all the adjustments and settings for all

the signals to the factory preset.

Current Signal: Resets the adjustments for the current signal to

the factory preset levels.

Image Options

Image Options Image Mode

Video Mode

Provides optional controls such as aspect ratio, gamma correction, and color matrix noise reduction features.

Image Mode

Image Mode Aspect Ratio

Allows you to select the item you want to adjust.

NOTE: Aspect Ratio is not available for “PC Card V iewer” and RGB source.

Aspect Ratio:

Aspect Ratio

Normal Zoom Cinema

Allows you to choose the best screen size mode to fit on the screen. Normal: Displays normal video picture with a 4-to-3 aspect

ratio as is.

Zoom: Displays DVD’s video picture with a 16-to-9 aspect

ratio expanded in the horizontal and vertical direction, maintaining the original proportion.

Wide Zoom

:Displays DVD’s squeezed video picture with a 16-

to-9 aspect ratio expanded in the horizontal direction, converted to 4-to-3 aspect ratio.

Cinema: Displays DVD’s squeez e video picture with a 16-to-

9 aspect ratio compressed in the vertical direction, maintaining the 16-to-9 aspect ratio.

Wide Zoom

E–21

Video Mode

Video Mode Gamma

Noise Reduction

Projector Options

Projector Options Menu

Setup

Enables you to set preferences and other operating options.

Color Matrix

Gamma:

Gamma

Normal Natural 1

Natural 2

Use the § 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 reproduction of middle tones. Each mode is recommnded for :

Normal: TV programs Natural1: Movie such as an action film Natural2: Movie with many dark scenes

NOTE: 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 sour ce. If this happens, select the Natural 1 or 2 mode .

Noise Reduction:

Noise Reduction

Off Low

Medium High

Y ou can select one of the follo wing three levels for reducing video noise to your preference.

Language

English

Projector Pointer

Pointer 1

Allows you to set preferences for the on-screen menu.

Language:

You can choose one of seven languages for on-screen instructions. The options are: English, German, French, Italian, Spanish, Swedish and Japanese.

Projector Pointer:

This enables you to select from eight different Pointer icons for the “Pointer” button on your remote control. After moving your Pointer icon to the area you want on the screen, press the Magnify button on the remote control to enlarge the selected area on the screen.

Source Display

OffOn

NOTE: The lower the Noise Reduction level, the better the image quality by way of higher video bandwidth.

Color Matrix

Select Color Matrix

Select Color Matrix Type

Cb/CrB-Y/R-Y

SDTVHDTV

Pb/Pr

First select an appropriate color matrix to fit your component signal for HDTV or SDTV. Then select an appropriate matrix type from B-Y/R-Y, Cb/Cr or Pb/Pr.

NOTE: The Color Matrix feature is available for composite video, S-Video, and component signals only.

NOTE: There may be cases where the P ointer function is not available for a non-interlace signal at 15kHz such as video game.

Source Display:

You can turn on and off the information for input name such as VIDEO and RGB. When this option is on, the current input will be displayed each time you switch sources or turn on the projector.

E–22

Setup

Enables you to set operating options. Press “OK” to save your changes for all the features of Page1, Page2 and Page3.

[Page1]

Setup Page1 Page2 Page3

Orientation

Front Floor

Background

Blue

Orientation:

This reorients your image for your type of projection. The options are:front floor projection, rear ceiling projection, rear floor projection, and front ceiling projection.

Background:

Use this feature to display a black, blue screen or logo when no signal is available.

Signal Select

RGB VIDEO S-VIDEO

Auto Auto Auto

OK Cancel

[Page2]

Setup Page1

Page2 Page3

Mouse

Button

Right Hand Left Hand

Sensitivity

Fast Medium

Clear Lamp Hour Mater

Slow

Auto Start Power Management

Power Off Confirmation Keystone Save White Segment

OK Cancel

Mouse Settings:

This option lets you to change your USB mouse settings. The mouse settings feature is available for USB mouse only. Choose the settings you want:

Mouse Button: “Right Hand” or “Left Hand” Mouse Sensitivity: “Fast”, “Medium” or “Slow”

Auto Start:

Turns the projector on automatically when the power cable is inserted into an active power outlet. This eliminates the need to always use the “Power” button on the optional remote control or projector cabinet.

Signal Select:

<RGB> Allows you to choose "RGB" for an RGB source such as a computer, or "Component" for a component video source such as a DVD player . Normally select "Auto" and the projector automatically detects a component signal. However there may be some component signals that the projector is unable to detect. If this is the case, select "Component".

<VIDEO and S-VIDEO> This feature enables you to select composite video standards manually. Normally select "Auto". Select the video standard from the pull-down menu. This must be done for Video and S-Video separately.

NOTE: The standard video signal NTSC4.43 and PAL60 must be selected because it cannot be automatically detected.

Power Management:

When this option is on and there is no RGB input for five minutes or more, the projector will automatically turn itself off.

Power Off Confirmation:

This option determines whether a confirmation dialog for turning off the projector will appear or not.

Keystone Save:

This option enables you to save your current keystone settings. Saving your change once affects all sources. The changes are saved when you turn off the projector.

White Segment:

You can put emphasis on either brightness or color for a projected image. If you prefer putting emphasis on brightness, place a checkmark in the box to turn the option on. If you prefer an image in truer color, turn off this option.

Clear Lamp Hour Meter:

Resets the lamp clock back to zero. Pressing this button appears a confirmation dialog box. To reset the lamp usage hour, press “OK”.

NOTE: The projector will turn off and go into standby mode after 1100 hours of service. If this happens, press the “Help” button on the remote control for ten seconds to reset the lamp clock back to zero. Do this only after replacing the lamp.

E–23

[Page 3]

Setup Page1

Page2 Page3

PC Card Viewer Options

Start Mode

Show Folder List

Capture Options

High Quality High CompressionNormal

Auto Play Interval

Tools

Tools Capture

PC Card Files

Manual PlayAuto Play

ChalkBoard

Provides tools for capturing images, displaying files in a CompactFlash Card and drawing.

NOTE: The “Tools” feature is required for a CompactFlash card.

Capture

sec

Allows you to capture an image from a source that is currently being displayed. The image is saved as JPEG in the CompactFlash card. When you select Capture from the menu, you will get a tool bar. Y ou can capture an image directly using the tool bar when the menu is not displayed.

OK Cancel

PC Card Viewer Options

Start Mode

Sets the starting condition when PC Card V iewer input is selected on the projector.

Show Folder List

When PC Card V iew er input is selected on the projector, the folder lists will be displayed and allows you to select the presentation from a CompactFlash card.

Auto Play

If this option is checked , any giv en slide will start to play automatically. You can also specify interval between 5 and 300 seconds using Auto Play Interval.

Manual Play

Views a slide manually when PC Card Viewer input is selected.

NOTE: The Auto Play and Manual Play options determine the behavior of the Play/Stop [ / ] icon on the Viewer tool bar.

When selecting “Show Folder List” or “Manual Play” while the “ Auto Play” feature is not checked, and you select PC Card V ie wer for the input source, you can manually advance to the next slide or the preivious slide.

NOTE: If you c heck “A uto Play” and select “PC Card V iew er” on the projector, the slides will automatically start to play back from any given slide.

The tool bar includes the following buttons:

Freeze

Drag

Capture

Exit

Drag: Drags to move the tool bar. (for USB mouse operation

only)

Capture

:Captures an image and save it as a JPEG file in a PC

card.

Freeze: Freezes and unfreezes images.

Exit: Exits the Capture function.

Unless a CompactFlash memory card is inserted into the PC Card Access slot of the projector, the Capture feature is not available. The "Card Error" display means that the free space of the CompactFlash 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 CompactFlash card.

NOTE: Be sure not to turn of f the power or remove the CompactFlash card while capturing an image. Doing so could cause a loss of the data in the CompactFlash card or damage to the card itself.

NOTE: Captured ima ges with higher resolution than the projector's native resolution cannot be displayed correctly.

Capture Options (available for JPEG only)

These options are used for the Capture function which you can select from Tools. You have three options for JPEG compression quality: High quality, Normal and High Compression.

High Quality

Gives quality of JPEG a priority.

Normal

Gives normal JPEG quality.

High Compression

Gives compression a priority.

E–24

PC Card Files

Displays a list of all the files stored in the CompactFlash card so that you can select a file you want to display . You can also sort f iles by file name or date, or display the file. Although a list of all the files in the CompactFlash card is displayed, you can view files in text, HTML, JPEG and BMP format only.

PC Card Files

File Name Size Date @. @..

12345678.txt

12345678.bmp

12345678.htm

Path

Info.

5 Files

<DIR>

<DIR> 1234567890 1234567890 1234567890

1999/06/01 HH:MM 1999/06/01 HH:MM 1999/06/17 HH:MM 1999/06/17 HH:MM 1999/06/17 HH:MM

Selecting “Execute” displays the file you selected.

Execute

Exit

Sort

Name (abc..)

File Group

All (*. *)

Free Space

NOTE:

* The ChalkBoard feature is available only when a USB mouse is

used. Free-hand drawings cannot be saved or captured.

* The main menu is not available while you display the ChalkBoard

screen.

* The Capture and the Source Display function are not available on

ChalkBoard screen. * Switching slides clears a drawing completely. * Selecting BMP and JPEG files automatically switches to the PC

Card Viewer source.

Help

Help Contents

Source Information Projector Information

Contents

Provides an online help about how to use the menus. An underlined link means that you can move to an adjustment item directly. Selecting the underlined link and pressing ENTER moves to the corresponding adjustment item.

Source Information

Displays the status of the current signal. This dialog box has three pages.

ChalkBoard (available only when using with a USB mouse)

Provides the tool bar for producing freehand drawings.

Pen: Left-click and drag to draw. Right-click to display the

pen palette containing four lines of different thickness from which you can select a line you prefer by leftclicking.

Erase: Left-click and drag to erase part of a drawing. Right-

click to display the eraser palette containing four eraser of different thickness from which you can select an eraser you prefer by left-clicking.

Clear: Clears the drawing completely from the ChalkBoard

screen.

Color: Selects a color. Left-click to display the color palette

from which you can select a color you prefer by leftclicking.

Vie w: Hides the tool bar by left-clicking. Right-clicking any-

where on the screen displays the ChalkBoard tool bar again.

Exit: Clears the complete drawing and exits the ChalkBoard.

Projector Information

Displays the lamp usage hours.

E–25

Using the PC Card Viewer function

NOTE: When using the supplied software (CD-ROM)

The software is designed to use with a personal computer only. Do not play the software on CD player. Doing so could cause damage to speakers.

Features

The V ie wer feature allo ws slides stored on a CompactFlash memory card (referred to as CompactFlash card in this manual) to be displayed on the projector. Even if no computer is available, presentations can be conducted simply with the projector. This feature is convenient for holding presentations at meetings and in offices, as well as for playing images taken on digital cameras.

Easy to use

• Presentations can be started immediately simply by inserting a CompactFlash card (not supplied)

• Easy slide switching

• Remote control operation

• Jumping to list of slides or any specific slide

High quality images

• High resolution up to 10242768 dots(LT84: up to 8002600 dots)

• 24-bit full color playback

• Viewing of digital camera images

Simple utility software (for computer)

• PC Card Viewer software operable on Windows 95/NT

• Slides can be created by capturing the currently displayed image

• Control screen for displaying lists of slides and editing

• Automa tic slide conversion of files created with Microsoft PowerPoint 95 and 97

PC CARD ACCESS

* Microsoft, Windows and PowerPoint are registered trademarks

of Microsoft Corporation.

Inserting and Ejecting a CompactFlash Card

A CompactFlash card is used to view presentation data prepared on the computer and to capture and play images projected with the projector.

E–26

Installing the PC Card Viewer Software

Before Installing

Perform the following before installing the PC Card V iewer software:

• If Windows95 is already started, exit all applications. Installation may not be performed properly if any applications are running.

Installation

Install the viewer software as described below. To quit installation before it is completed, press the "Cancel" button then follow the instructions in the dialog box.

1. Start up Windows95.

2. Insert the CD-ROM into the CD-ROM drive. The auto CD play function automatically starts the CD-ROM's program and the contents screen appears.

Starting Up the PC Card Viewer Software on your PC

(PC Card Viewer Utility 1.0)

Use the PC Card Viewer Utility 1.0 for creating viewer slides. To start the PC Card Viewer software:

* Select [Start]-[Programs]-[NEC PROJECTOR TOOLS]-[PC

Card Viewer Utility 1.0].

Refer to online help for instructions on using the PC Card Viewer software.

* The auto CD play function operates if the "Auto insert notifica-

tion" box in the computer's CD-ROM control panel is checked. (The box is checked by default.)

3. Click [Installing the PC Card Viewer Utility 1.0] The setup dialog appears.

* Follow the instructions in the setup dialog to complete the in-

stallation.

For instructions on uninstalling the PC Card Viewer software, see page E-31.

Contents of the English version PC Card Viewer software (PC Card Viewer Utility 1.0)

This is the software used for creating PC Card Viewer slides. In this manual it is referred to as the "PC Card Viewer software".

PC CARD VIEWER PPT CONVERTER 3.0

This is an application that converts files created with Microsoft PowerPoint 95 or 97 into indexes so that they can be played directly with the PC Card Viewer Utility 1.0. PC Card Viewer PPT Converter is installed automatically when you install the PC Card Viewer Utility. To start PC Card Viewer PPT Converter:

* Select PC Card V ie wer PPT Conv erter from NEC PR OJECTOR

TOOLS.

Basic Operation of the PC Card Viewer Software

PC Card Viewer Utility is an application for editing documents, converting them into slides and storing them on CompactFlash cards as playback data (indexes) for presentations using projectors.

E–27

Operating the PC Card Viewer Function from the Projector (playback)

This section describes the operation for showing slides of presentation documents created using the PC Card Viewer function with the projector. It is also possible to make slides directly from the images projected with the projector.

Projecting slides

1. Insert a CompactFlash card into the card slot. Insert the CompactFlash card with the side with the insertion direction arrow on the top.

* Press the eject button to eject the card.

2. Select the “PC Card Viewer” from the Source Select menu.

Source Select RGB

Video S-Video PC Card Viewer

3. Project slides.

Checking “Show Folder List”, means that selecting PC Card Viewer input displays a list of the folders in the CompactFlash card and if “Auto Play” is checked the projector automatically starts to play slides at the first slide of the folder you have selected. When selecting “Show Folder List” or “Manual Play” while the “Auto Play” feature is not check ed, and you select PC Card Viewer for the input source, you can manually advance to the next slide or the preivious slide. See page E-24 for more details.

A tool bar will appear when you press the MENU button on the remote control or the projector cabinet or clicking with the right button of a mouse.

Play/Stop

Drag

Select

View

Drag: Drags to move the tool bar . This is av ailable for USB

mouse operation only.

Prev: Returns to the previous slide or folder. Or this lets

you play slides back in reverse.

Next: Advances to the next slide or folder. Or this lets you

play slides back.

Play: Play/Stop: Plays back automatically or manually de-

pending on the setting on PC Card V iew er Options of the menu. This allows you to stop Auto Play while you are playing back and to resume playing from the selected slide or folder when “ Auto Play” is selected. This allows you to move on to the next slide when

“Manual Play” is selected. Jump: Displays a list of slides while you are playing back. Select: Displays a list of folders while you are playing back. Delete: Deletes a captured slide(s) or all the captured slides

in the Capture – specific folder. Vie w: Hides the tool bar while you are playing back. Press-

ing the MENU button or clicking with the right but-

ton of a mouse shows it again.

NOTE:

* The tool bar for PC Card V ie wer is not available if you display the

ChalkBoard and the Capture tools, and Main menu using the remote control. When using a USB mouse you can display the ChalkBoard tool bar, the Capture tool bar and Main menu as well as the PC Card Viewer tool bar.

* The tool bar is operated with buttons on the remote control, cabi-

net, and USB mouse. If no memory card is inserted in the PC CARD A CCESS slot, ther e is no signal, and a black, blue or logo background is displayed, depending on the setting.

NOTE: Up to 12 indexes can be displayed on the list of folders. The folder in the right bottom is always a folder exclusively for captured images, but is only displayed when images have been captured. To display the list of folders when there ar e 13 or more inde xes stored on the CompactFlash card, select "Edit index" fr om the PC Card V ie wer software's "File" menu and move the index you want to display to within 12 indexes from the top of the folder index. For details on indexes, refer to the PC Card Viewer software's help folder.

Jump

Delete

The tool bar includes the following buttons:

E–28

Auto Play Mode

SOURCE AUTO ADJ.

COMPUTER PROJECTOR

POWER

OFF ON

• If the “Auto Play” option is selected in “PC Card Viewer Options” of the menu, any given slide will start to play automatically. Y ou can also specify Auto Play Interval between 5 and 300 seconds.

Switching to Slides Directly from Other Input Modes

With this function it is possible to switch directly to a slide when the picture of a VCR or computer is being projected. Example: When conducting presentations using a combination of slides and moving pictures from a VCR, etc., it is possible to switch from a PC Card V ie wer slide to the video picture then back to the PC Card V iewer slide simply by using the Source button.

NOTE: Even if you switch the current PC Card Viewer source to another source, the curr ent slide is r etained. When you r eturn back to the PC Card Viewer, you will get the slide that has been retained.

E–29

Capturing Images Displayed on the Projector

Storing images displayed on the projector on the CompactFlash card

Preparations:

Insert the CompactFlash card into the card slot.

Insert the CompactFlash card with the side with the insertion direction arrow on the top.

* Press the eject button to eject the card.

1. Project the image you wish to store on the projector.

2. Select the “Capture” from the Tools menu.

NOTE:

• File size of the captur ed image var ies depending on the r esolution of an input signal.

• Since an image data is compressed with the JPEG format, the image is slightly degraded.

NOTE: An hour glass indicating that an ima ge is being captur ed a ppears on the projector's display . Do not eject the CompactFlash car d or turn off the projector's power while this icon is displayed. Doing so will damage the CompactFlash card data. If the CompactFlash card data is damaged, use a computer to r epair the data.

NOTE: The folder in the right bottom is always a folder exclusively for captured images. To display the list of folders when ther e are 13 or more indexes stored on the CompactFlash card, select "Edit index" from the PC Card Viewer software's "File" menu and move the index you want to display to within 12 indexes from the top of the folder index. For details on indexes, refer to the PC Card Viewer software's help file.

E–30

Deleting Captured Images

Play/Stop

Drag

Using the Delete button on the tool bar for PC Card Viewer can delete captured images. To delete captured images:

1) Select PC Card Viewer.

3) Press the MENU button to display the tool bar.

Jump

Select

Delete

View

Viewing Digital Images

Digital images can be played with the PC Card Viewer if the following conditions are met:

• If the image can be stored on an MS-DOS format CompactFlash card

• If the image can be stored in a format supported by the PC Card Viewer. With the PC Card V ie wer , images on the card are searched for in directories and images in JPEG or BMP format are recognized as slides. Searchable directories are directories within two steps from the root directory, and searchable images are images within the first 12 files in the directory. Only file and slide switching are possible.

NOTE:

• The maximum number of images recognized as slides within one directory is 128.

Uninstalling the PC Card Viewer Software

Even if you do now know the PC Card Viewer software's file names or where they are stored, the PC Card Viewer software files can be easily removed from the system using the "Install/Uninstall Applications" control panel in Windows 95. (Normally there is no need to perform this operation.)

Uninstalling the software

Use the procedure described below to uninstall the PC Card Viewer software files.

1. From the "Start" menu, select "Settings" then "Control Panels".

2. In the "Control Panels" dialog box, double-click on "Add/Remove Programs".

3. In the "Add/Remove Programs Properties" dialog box, click the "Setup/Remove" tab, then select "PC Card V iewer Utility 1.0" from the list of applications and click on "Add/Remove".

4. In the "Confirm File Deletion" dialog box, click "Yes".

5. Once the application is uninstalled, click on "OK" in the "Remove Program From Your Computer" dialog box.

E–31

Terminology

PC card

ATA card

CompactFlash

TYPE (I, II and III)

BMP

JPEG

This is the name of a card currently being standardized by the Japan Electronic Industry Association (JEIDA) and PCMCIA (Personal Computer Memory Card Interface Association) of the United States.

A type of PC card. ATA was originally a type of interface between computers and fixed disk de vices. The ATA card is a standard card-type recording medium.

CompactFlash card is a small removable card conforming to ATA specifications. It is one-fourth the volume of a PCMCIA card.

PCMCIA 2.1 PC cards are divided into three types according to their thickness: Type I (3.3 mm), Type II (5.0 mm) and Type III (10.5 mm).

A type of image format. The standard W indows Bit Map format used for MS-DOS/Windows-compatible computers.

A type of image format. "JPEG" is the abbreviation of Joint Photographic Experts Group. JPEG compression offers efficient data storage. The data not required for displaying the image is identified and deleted. Since the data is deleted, JPEG algorithms are said to be irreversible. This means that once the image is compressed, the decompressed image it is not the same as the original image.

E–32

4. MAINTENANCE

E–33

CR2025

E–34

5. TROUBLESHOOTING

This section helps you resolve problems you may encounter while setting up or using the projector.

Status Light Messages

Condition Status

OFF

• Normal

On continually

Blinking very rapidly (On and off in a cycle of 1 sec.)

Blinking rapidly (On and off in a cycle of 4 sec)

Blinking slowly (On and off in a cycle of 8 sec.)

Blinking very slowly (On and off in a cycle of 12 sec.)

• The projector lamp has exceeded 1000 hours of operation and should be replaced.

• The lamp cover is not fastened properly. Check and reattach it if necessary.

• 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 hole on the bottom of the projector. If the hole is blocked, remove whatever is blocking it.

• The cooling fan has stopped. Contact your NEC dealer for service.

• The lamp is not turned on. The projector was turned off and back on too quickly. Turn off the projector , w ait one minute, then turn the projector back on. Or the lamp is burnt out.

Common Problems & Solutions

Problem Check These Items

Does not turn on

• Check that the power cable is plugged in and that the power button on the projector cabinet or the remote control is on.

• Ensure that the lamp cover is installed correctly. See page E-33.

• Check to see if the projector has overheated or the lamp usage exceeds 1100 hours. If there is insuff icient ventilation around the projector or if the room where you’re presenting is particularly warm, move the projector to a cooler location.

No picture

Image isn’t square to the screen

Picture is blurred

Image is scrolling vertically, horizontally or both

Remote control does not work

Status indicator is lit or blinking

Cross color in RGB mode

• Use the menu to select your source (Video, S-Video, RGB or PC Card Viewer). See page E-20.

• Ensure your cables are connected properly.

• Use menus to adjust the brightness and contrast. See page E-20

• Remove the lens cap.

• Reset the settings or adjustments to factory preset levels using the Factory Default in the Adjustment Menu. See page E-21

• Reposition the projector to improve its angle to the screen. See page E-12

• Use the Keystone in the Adjustment Menu to correct the trapezoid distortion. See page E-21

• Adjust the focus. See page E-12 or E-17.

• Reposition the projector to improve its angle to the screen. See page E-12

• Ensure that the distance between the projector and screen is within the adjustment range of the lens. See page E-13

• Use menus or Source button on the remote control or the cabinet to select the source you want to input.

• Check the card remote control. If the insulation tape remains, remove it. See page E-10.

• Install a new battery. See page E-34.

• Make sure there are no obstacles between you and the projector.

• Stand within 10 – 17 feet (3 – 5 m) of the projector. See page E-34.

• See the Status Light messages above.

• If Auto Adjust is of f, turn it on. If Auto Adjust is on, turn it off and balance the image with the Position and Pixel Adjust in the Adjustments Menu. See page E-21.

E–35

When using the PC Card Viewer function

Problem Check These Items

No picture

• Is “PC Card Viewer” selected from the Source menu?

• Is the CompactFlash memory card seated in the PC CARD ACCESS slot completely?

• Are slide data stored in the CompactFlash memory card?

• Have the contents of the CompactFlash memory card been destroyed?

Part of a slide is not displayed

Contents of CompactFlash Card are damaged

For more information contact your dealer.

• While an image with over 10242768 dots is projected, several lines of information will be lost. Use the supplied software change the image to 10242768 dots in size.

• Areas of slides exceeding 10242768 (LT84: 8002600 dots) cannot be displayed. Use the PC Card Viewer software, etc., to change the image size to 10242768 dots (LT84: 8002600 dots). In addition, the displayable image size differs according to the resolution of the projector . Use the PC Card Viewer software, etc., to change the image size. Note that on L T84 JPEG images e xceeding 8002600 dots are scaled down to three-quarters of its original size. Example: a JPEG image exceeding 10242768 dots is displayed in 768 (=102423/4)2576 (=76823/

4) dots.

• Use a computer, etc., to repair the data.

E–36

6. SPECIFICATIONS

This section provides technical information about the MultiSync LT84/LT140 Projector’s performance.

Model Number LT84 / LT84G / LT140 / LT140G

Optical

DMD Lens Manual zoom, manual focus

Lamp 120 W P-VIP lamp Image Size 25 – 300 inches (612.5 – 7620 mm) diagonal Projection Distance 3.9 - 40 ft (1.2 - 12.2 m)

Electrical

Inputs Video (NTSC / PAL / PAL60 / SECAM / NTSC4.43)

Video Bandwidth RGB: 80 MHz Color Reproduction Full color, 16.7 million colors simultaneously. Horizontal Resolution 500 TV lines : NTSC / PAL / YCbCr

Power Requirement 100 – 120 / 200 – 240 VAC, 50 / 60 Hz Input Current 2.1 A (100 – 120 VAC) / 1.0A (200 – 240 VAC)

Single Chip Digital Micromirror Device(DMDTM), 800x600 dots (LT84) / 1024x768 dots (LT140)

LT84 : F3.0 – 3.3 f = 28 – 33 mm LT140 : F2.7 – 3.0 f = 35 – 42 mm

Horizontal Frequency : 15 – 85 kHz (RGB : 24 kHz or over) Vertical Frequency : 50 – 85 Hz

300 TV lines : SECAM RGB LT84 : 800 dots horizontal, 600 dots vertical

LT140 : 1024 dots horizontal, 768 dots vertical

Mechanical

Dimensions 9.3" (W)22.3" (H)211.6" (D) / 235mm (W)258mm (H)2294mm (D) (not including protrusions) Net Weight LT84: 5.5 lbs / 2.5 kg, LT140: 5.7 lbs / 2.6 kg Environmental Considerations

Regulations UL Approved (UL 1950, CSA 950)

Digital Light Proccessing, DLP, Digital Micromirror Device and DMD are trademarks of Texas Instruments.

The specifications are subject to change without notice.

Operational Temperatures: 41˚ to 95˚F (5˚ to 35˚C), 30 to 85% humidity Storage Temperatures: 14˚ to 140˚F (-10˚ to 60˚C), 30 to 85% humidity

Meets DOC Canada requirements Meets FCC Class A requirements Meets AS/NZS3548 Meets EMC Directive (EN55022, EN55024, EN61000-3-2, EN61000-3-3) Meets Low Voltage Directive (EN60950, TUV GS Approved)

E–37

Cabinet Dimensions

LT84

E–38

Cabinet Dimensions

LT140

E–39

51423

1112131415

6978

D-Sub Pin Assignments

Mini D-Sub 15 Pin Connector

Signal Level Video signal : 0.7Vp-p (Analog) Sync signal : TTL level

Pin No. RGB Signal (Analog) YCbCr Signal

1 Red Cr 2 Green or Sync on Green Y 3 Blue Cb 4 Ground 5 Ground 6 Red Ground Cr Ground 7 Green Ground Y Ground 8 Blue Ground Cb Ground

9 No Connection 10 Sync Signal Ground 11 Ground 12 Bi-directional DATA (SDA) 13 Horizontal Sync or Composite Sync 14 Vertical Sync 15 Data Clock

E–40

Timing Chart

Y / N Signal

Y NTSC 640 2 480 60 15.734 - Y PAL 768 2 576 50 15.625 Y SECAM 768 2 576 50 15.625 Y VESA 640 2 350 85.08 37.86 31.5 Y MAC 640 2 400 66 35 30.24 Y IBM 640 2 400 70 31.47 25.175 Y VESA 640 2 400 85.08 37.86 31.5 Y VESA 640 2 480 59.94 31.47 25.175 Y IBM 640 2 480 60 31.47 25.175 Y MAC 640 2 480 60 31.47 25.175 Y MAC 640 2 480 66.67 34.97 31.334 Y MAC 640 2 480 66.67 35 30.24 Y VESA 640 2 480 72.81 37.86 31.5 Y VESA 640 2 480 75 37.5 31.5 Y IBM 640 2 480 75 39.375 31.49 Y VESA 640 2 480 85.01 43.269 36 Y IBM 720 2 350 70.09 31.469 28.322 Y VESA 720 2 400 85.04 37.927 40 Y IBM 720 2 350 87.85 39.44 35.5 Y IBM 720 2 400 87.7 39.375 35.5 Y VESA 800 2 600 56.25 35.16 36 Y VESA 800 2 600 60.32 37.879 40 Y VESA 800 2 600 72.19 48.077 50 Y VESA 800 2 600 75 46.88 49.5 Y VESA 800 2 600 85.06 53.674 56.25

#Y MAC 832 2 624 74.55 49.725 57.283

N VESA 1024 2 768 43 INT 35.5 44.9 #Y VESA 1024 2 768 60 48.363 65 #Y VESA 1024 2 768 70.07 57.476 75 #Y IBM 1024 2 768 72.03 58.131 79 #Y MAC 1024 2 768 74.93 60.241 80 #Y VESA 1024 2 768 75.03 60.023 78.75 #Y VESA 1024 2 768 85 68.677 94.5

##Y VESA 1152 2 864 75 67.5 108 ##Y MAC 1152 2 870 75.6 68.681 100 ##Y SUN 1152 2 900 65.95 61.796 92.94 ##Y SGI 1152 2 900 70.05 71.736 105.6 ##Y VESA 1280 2 960 60 60 108 ##Y SGI 1280 2 1024 60 63.9 107.35 ##Y VESA 1280 2 1024 60.02 64.286 108 ##Y MAC 1280 2 1024 60.38 64.31 107 ##Y VESA 1280 2 1024 69.85 74.882 126.996 ##Y MAC 1280 2 1024 69.89 74.882 118.5 ##Y VESA 1280 2 1024 71.99 76.75 129.54 ##Y VESA 1280 2 1024 74.12 78.855 135 ##Y VESA 1280 2 1024 75.03 79.976 135

N VESA 1280 2 1024 85.02 91.146 157.5

Resolution Refresh Rate Frequency H. Dot Clock ( Dots ) ( Hz ) ( kHz ) ( MHz )

N: Signals in above list flagged with an N and shaded are not supported.

#Y: Images in above flagged with # and Y are compressed with Advanced AccuBlend on LT84.

##Y: Images in above flagged with ## and Y are compressed with Advanced AccuBlend.

E–41

PC Control Codes

Function Code Data

POWER ON 02H 00H 00H 00H 00H 02H POWER OFF 02H 01H 00H 00H 00H 03H INPUT SELECT RGB 02H 03H 00H 00H 02H 01H 01H 09H INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH INPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H INPUT SELECT PC CARD VIEWER PICTURE MUTE ON 02H 10H 00H 00H 00H 12H PICTURE MUTE OFF 02H 11H 00H 00H 00H 13H SOUND MUTE ON 02H 12H 00H 00H 00H 14H SOUND MUTE OFF 02H 13H 00H 00H 00H 15H ON SCREEN MUTE ON 02H 14H 00H 00H 00H 16H ON SCREEN MUTE OFF 02H 15H 00H 00H 00H 17H

02H 03H 00H 00H 02H 01H 1FH 27H

E–42

Cable Connection

Communication Protocol

Baud rate: 9600 bps Data length: 8 bits Parity: No parity Stop bit: One bit X on/off: None Communications

procedure:

If the CPU of the projector has received the data correctly, it returns an A CK(C5H). If the recei ved data is not correct, the CPU returns a NAK(CAH), then the follo wing status:

Receiving success: C5 Receiving failure: CA Err Err 01: Command Error (command not supported) Err 02: Checksum Error Err 03: Busy (command not acceptable) Err 04: Parameter Error ( parameter data abnormal)

Note: If failing in powering-on, the CPU returns the following NAKs:

Full duplex

CA Err 1

Err 1 8X (Apply the corresponding bit.)

Bit 0: Lamp cover is not attached correctly Bit 1: Fan stoppage Bit 2: Overheated Bit 3: Lamp lighting failure

E–43

Printed in Japan

78410871

NEC LT84 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual