NEC LT75z Owner's manual

Micro-Portable Projector

LT75Z

User’s Manual

English

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E-2

IMPORTANT INFORMATION

• IBM is a registered trademark of International Business Machines Corporation.

• Macintosh and PowerBook are registered trademarks of Apple Computer, Inc.

• Other product and company names mentioned in this user's manual may be the trademarks of their respective holders.

Precautions

Please read this manual carefully before using your NEC LT75Z

Projector and keep the manual handy for future reference.

Your serial number is located on the bottom of your LT75Z.

Record it here:

CAUTION

To turn off main power, be sure to remove the

plug from power outlet.

The power outlet socket should be installed

as near to the equipment as possible, and

should be easily accessible.

CAUTION

TO PREVENT SHOCK, DO NOT OPEN THE

CABINET.

NO USER-SERVICEABLE PARTS INSIDE. RE-

FER SERVICING TO QUALIFIED NEC SER-

VICE PERSONNEL.

This symbol warns the user that uninsulated volt-

age 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 infor-

mation concerning the operation and mainte-

nance of this unit has been provided. The infor-

mation should be read carefully to avoid prob-

lems.

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-VOLT-

AGE COMPONENTS INSIDE. ALL SERVICING MUST BE

DONE BY QUALIFIED NEC SERVICE PERSONNEL.

DOC Compliance Notice

This Class B digital apparatus meets all requirements of the

Canadian Interference-Causing Equipment Regulations.

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 al-

low 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 B digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interfer-

ence in a residential installation. This equipment gen-

erates, uses, and can radiate radio frequency energy

and, if not installed and used in accordance with the

instructions, may cause harmful interference to radio

communications. However, there is no guarantee that

interference will not occur in a particular installation. If

this equipment does cause harmful interference to ra-

dio or television reception, which can be determined

by turning the equipment off and on, the user is en-

couraged to try to correct the interference by one or

more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and

receiver.

• Connect the equipment into an outlet on a circuit dif-

ferent from that to which the receiver is connected.

• Consult the dealer or an experienced radio / TV tech-

nician for help.

In UK, a BS approved power cable with moulded plug has a

Black (five Amps) fuse installed for use with this equipment. If

a power cable is not supplied with this equipment please con-

tact your supplier.

E-3

Important Safeguards

These safety instructions are to ensure the long life of your

projector and to prevent fire and shock. Please read them care-

fully and heed all warnings.

Installation

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

2. Place the projector on a flat, level surface in a dry area away

from dust and moisture.

3. Do not place your projector in direct sunlight, near heaters

or heat radiating appliances.

4. Exposure to direct sunlight, smoke or steam can harm inter-

nal components.

5. Handle your projector carefully. Dropping or jarring can dam-

age 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 AC. Ensure that your power

supply fits this requirement before attempting to use your

projector.

2. Handle the power cable carefully and avoid excessive bend-

ing. 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.

CAUTION

Do not turn off the main power or unplug the power

cable from the wall outlet under any one of the follow-

ing circumstances. Doing so can cause damage to the

projector:

• Immediately after the power cable is plugged into the

wall outlet (when the POWER indicator has not

changed to a steady orange glow).

• Immediately after the cooling fan stops working (The

cooling fan continues to work for 90 seconds after

the projector is turned off with the POWER button).

E-4

Lamp Replacement

•To replace the lamp, follow all instructions provided on page

E-34.

• Be sure to replace the lamp when the message "The lamp

has reached the end of its usable life. Please replace the

lamp." appears. If you continue to use the lamp after the

lamp has reached the end of its usable life, the lamp bulb

may shatter, and pieces of glass may be scattered in the

lamp case. Do not touch them as the pieces of glass may

cause injury. If this happens, contact your NEC dealer for

lamp replacement.

• Allow a minimum of 90 seconds to elapse after turning off

the projector. Then disconnect the power cable and allow 60

minutes to cool the projector before replacing the lamp.

Fire and Shock Precautions

1. Ensure that there is sufficient ventilation and that vents are

unobstructed to prevent the build-up of heat inside your pro-

jector. Allow at least 3 inches (10cm) of space between your

projector and a wall.

2. Prevent foreign objects such as paper clips and bits of pa-

per 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, dis-

connect it immediately and have the object removed by a

qualified NEC service personnel.

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

• Do not look into the lens while the projector is on. Serious dam-

age 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 exten-

sive, 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.

E-5

1. INTRODUCTION

Introduction to the LT75Z Projector ...............................E-6

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

What’s in the Box ............................................................E-7

Getting to Know Your LT75Z Projector ..........................E-8

Front / Side Features ...............................................................E-8

Attaching the lens cap .............................................................E-8

Rear / Side Features ................................................................E-9

Top Features..........................................................................E-10

Terminal Panel Features .........................................................E-11

Remote Control Features .......................................................E-12

Remote Control Battery Installation.................................E-13

Operating Range ............................................................E-13

Remote Control Precautions ...........................................E-13

2. INSTALLATION

Setting Up Your Projector .............................................E-14

Selecting a Location .....................................................E-14

Screen and Projection Distance...................................E-14

Distance Chart ..............................................................E-15

Reflecting the Image.....................................................E-15

Wiring Diagram ............................................................. E-16

Connecting Your PC or Macintosh Computer ........................E-17

Connecting Your DVD Player .................................................E-18

Connecting Your VCR or Laser Disc Player ............................E-19

About Startup screen (Menu Language Select screen) ...........E-20

3. OPERATION

Connecting the Power Cable and Turn on the Projector

.....E-21

Adjusting the Image Size and the Focus .....................E-22

Adjusting the Image Using Auto Adjust .......................E-23

Enlarging and Moving a Picture ...................................E-24

Using the Menus ...........................................................E-24

Menu Tree......................................................................E-25

Menu Elements .............................................................E-26

Menu Descriptions & Functions ...................................E-27

Source Select ................................................................E-27

RGB/Video/S-Video

Picture ...........................................................................E-27

Brightness/Contrast/Color/Hue/Sharpness

Volume ...........................................................................E-27

Image Options...............................................................E-27

Keystone ...............................................................................E-27

Lamp Mode ...........................................................................E-28

Aspect Ratio ..........................................................................E-28

Position/Clock .......................................................................E-29

Resolution .............................................................................E-29

Video Filter.............................................................................E-29

Factory Default ......................................................................E-29

Color Management .......................................................E-30

Gamma Correction ................................................................E-30

White Balance .......................................................................E-30

Projector Options..........................................................E-30

Menu .....................................................................................E-30

Menu Mode....................................................................E-30

Basic Menu/Advanced Menu

Language .......................................................................E-30

Source Display ...............................................................E-30

No Input Display .............................................................E-30

Volume Bar.....................................................................E-30

Keystone Bar..................................................................E-31

Menu Display Time .........................................................E-31

TABLE OF CONTENTS

Setup.....................................................................................E-31

Orientation......................................................................E-31

Cinema Position .............................................................E-31

Background ...................................................................E-31

Signal Select RGB ..........................................................E-31

Signal Select Video/S-Video ...........................................E-31

Auto Adjust ....................................................................E-32

Auto Start.......................................................................E-32

Power Management .......................................................E-32

Power Off Confirmation ..................................................E-32

Keystone Save ...............................................................E-32

White Segment...............................................................E-32

Default Source Select .....................................................E-32

Communication Speed ...................................................E-32

Control Panel Key Lock ..................................................E-32

Clear Lamp Hour Meter ..................................................E-33

Information ....................................................................E-33

4. MAINTENANCE

Replacing the Lamp......................................................E-34

5. TROUBLESHOOTING

Power/Status Light Messages .....................................E-35

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

6. SPECIFICATIONS

Optical/Electrical/Mechanical ......................................E-36

Cabinet Dimensions......................................................E-37

D-Sub Pin Assignments................................................E-38

Compatible Input Signal List ........................................E-39

PC Control Codes .........................................................E-40

Cable Connection .........................................................E-40

E-6

Introduction to the LT75Z Projector

This section introduces you to your new LT75Z Projector and

describes the features and controls.

Congratulations on Your Purchase of The LT75Z

Projector

The LT75Z is one of the very best projectors available today.

The LT75Z enables you to project precise images up to 200

inches across (measured diagonally) from your PC or

Macintosh computer (desktop or notebook), VCR, DVD player,

document camera or a laser disc player.

You can use the projector on a tabletop or cart, you can use

the projector to project images from behind the screen, and

the projector can be permanently mounted on a ceiling*

. The

remote control can be used wirelessly.

Features you’ll enjoy:

• Simple set up and operation.

•A high-performance 135 watt NSH lamp.

• The supplied wireless remote control that operates the pro-

jector from the front or rear.

• The image can be projected between 30 and 200 inches

(measured diagonally).

•Keystone correction allows you to correct trapezoidal distor-

tion so that the image is square.

•You can choose between video modes depending on your

source:

"normal" for a typical picture, "natural" for true color repro-

duction.

• An image can be projected from in front or behind a screen,

and the projector can even be installed on the ceiling.

• NEC Technologies’ exclusive Advanced AccuBlend intelli-

gent pixel blending technology - an extremely accurate im-

age compression technology - offers a crisp image with

UXGA (1600⳯1200) resolution*

• Supports most IBM VGA, SVGA, XGA*

, SXGA*

, UXGA*

Macintosh, component signal (YCbCr / YPbPr) or any other

RGB signals within a horizontal frequency range of 15 to

100 kHz and a vertical frequency range of 50 to 120Hz. This

includes NTSC, PAL, PAL-N, PAL-M, PAL60, SECAM and

NTSC4.43 standard video signals.

NOTE: Composite video standards are as follows:

NTSC: U.S. TV standard for video in U.S. and Canada.

PAL: TV standard used in Western Europe.

PAL-M: TV standard used in Brazil.

PAL-N: TV standard used in Argentina, Paraguay and Uruguay.

PAL60: TV standard used for NTSC playback on PAL TVs.

SECAM: TV standard used in France and Eastern Europe.

NTSC4.43: TV standard used in Middle East countries.

•You can control the projector with a PC using the PC Con-

trol port.

• The contemporary cabinet design is light, compact, easy to

carry, and complements any office, boardroom or audito-

rium.

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

projector must be installed by qualified technicians in order to en-

sure proper operation and reduce the risk of bodily injury. In addi-

tion, 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.

An XGA image (1024⳯768), SXGA image (1280⳯1024) and UXGA

image (1600⳯1200) are converted into an 800⳯600 crisp image

with NEC technology’s Advanced AccuBlend.

1. INTRODUCTION

Getting Started

The fastest way to get started is to take your time and do ev-

erything right the first time. Take a few minutes now to review

the user’s manual. This may save you time later on. At the

beginning of each section of the manual you’ll find an over-

view. If the section doesn’t apply, you can skip it.

E-7

What's in the Box?

Make sure your box contains everything listed. If any pieces are missing, contact your dealer.

Please save the original box and packing materials if you ever need to ship your LT75Z Projector.

SELECT

AUTO ADJUST

STATUS

POWER

ON/

STAND BY

SOURCE

Quick

Connect

Guide

User's

Manual

VIDEO S-VIDEO

POWER

MAGNIFY

PICTURE FREEZE

MUTE

ASPECT

MEN

HELP

CANCEL

RD-372E

NEC LT75Z Projector

Lens cap

Soft carrying case

Remote control

Batteries

String and rivet

Power cable

RGB signal cable

E-8

SELECT

AUTO ADJUST

STATUS

POWER

ON/

STAND BY

SOURCE

Getting to Know Your LT75Z Projector

Controls

Front/Side Features

Zoom Ring

Lens Cap

Remote Sensor

Adjustable Tilt Foot Button

Ventilation (inlet)

Lens

Focus Ring

Adjustable Tilt Foot

Attaching the lens cap to the bottom with the supplied string and rivet

1. Thread the string through the hole on the lens cap and then tie a knot in the string.

2. Use the rivet to attach the string to the bottom of the projector.

E-9

SELECT

AUTO ADJUST

STATUS

POW

ON/

STAND BY

SOURCE

S-V

Rear/Side Features

AC Input

Slot for Kensington MicroSaver

Security System

Monaural Speaker (1W)

Remote Sensor

Ventilation (outlet)

Heated air is exhausted from here.

Spacer (black rubber)

To fine-adjust the height of the rear

foot, remove the spacer and rotate

the rear foot to the desired height.

Rear Foot

Rotate to fine-adjust horizontally position

Terminals

Ventilation (inlet)

Bottom

Lamp cover

Lamp cover screw

Ventilation (inlet)

Rear Foot

(not adjustable)

NOTE: The projector has an internal temperature sensor. The sensor controls the speed of the fan to keep constant temperature in the inside.

When the internal temperature rises, the built-in fan automatically runs at a high speed (high-speed mode).

During this time, the sound of exhaust may be heard. This is not a malfunction.

Spacer (black rubber)

Rear Foot

E-10

1. Power Button (ON / STAND BY)

Use this button to turn the power on and off when the power is

supplied and the projector is in standby mode.

NOTE: To turn off the projector, press and hold this button for a mini-

mum of two seconds.

2. Status Indicator

When this is lit red continually, it's warning you that the projec-

tion lamp has exceeded 1000 hours (1500 houres in Eco mode)

of service. After this light appears, it is advisable to replace the

projection lamp as soon as possible. (See page E-34). In addi-

tion the message

"The lamp has reached the end of its us-

able life. Please replace the lamp."

appears continually until

the lamp is replaced.

If this light blinks red rapidly, it indicates that the lamp cover is

not attached properly or the projector is overheated.

See the Power/Status Light Messages on page E-35 for more

details.

3. Power Indicator ( )

When this indicator is green, the projector is on; when the indi-

cator is orange, it is in standby mode.

4. Source Button

Use this button to select a video source such as a PC, VCR or

DVD player.

Each time this button is pressed, the input source will change

as follows:

RGB Video S-Video

If no input signal is present, the input will be skipped.

Top Features

5. Auto Adjust Button (RGB only)

Use this button to adjust Position-H/V and Pixel Clock/Phase

for an optimal picture. Some signals may not be displayed cor-

rectly or take time to switch between sources.

6. Enter Button

Executes your menu selection and activates items selected

from the menu.

7. Cancel Button

Press this button to close the menu.

8. Select (▲▼

䊴

䊳

) Buttons

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

wish to adjust.

䊴

䊳

: Use these buttons to change the level of a selected

menu item.

9. Menu Button

Displays the menu.

SELECT

AUTO ADJUST

STATUS

POWER

ON/

STAND BY

SOURCE

VIDEO

S-VIDEO

RGB

AUDIO

CONTROL

E-11

SELECT

AUTO ADJUST

TATUS

POWER

ON/

STAND BY

SOURCE

VIDEO

S-VIDEO

RGB

AC IN

AUDIO

PC CONTROL

Terminal Panel Features

1. PC Control Port (Mini DIN 8 Pin)

Use this port to connect your PC to control your projector via a

serial cable. This enables you to use your PC and serial com-

munication protocol to control the projector. The NEC optional

serial cable is required to use this port.

If you are writing your own program, typical PC control codes

are on page E-40.

A cap is put on the port at the factory. Remove the cap when

using the port.

2. Audio Input Mini Jack (3.5 mm ∅)

This is where you connect audio output from your computer,

VCR, DVD player or laser disc player.

A commercially available audio cable is required.

3. Video Input (RCA)

Connect a VCR, DVD player, laser disc player, or document

camera here to project video.

4. S-Video Input (Mini DIN 4 Pin)

Here is where you connect the S-Video input from an external

source like a VCR.

NOTE: S-Video provides more vivid color and higher resolution than

the traditional composite video format.

5. RGB Input/Component Input Connector

(Mini D-Sub 15 pin)

Connect your PC or other RGB equipment such as IBM or

compatible computers. Use the supplied RGB cable to con-

nect to a PC. Or connect a Macintosh computer here using the

supplied RGB cable. This also serves as a component input

connector that allows you to connect a component video out-

put of component equipment such as a DVD player.

6. AC Input

Connect the supplied power cable's three-pin plug here. When

you plug the other end into an active wall outlet, the POWER

indicator turns orange and the projector is in standby mode.

7. Built-in Security Slot ( )

This security slot supports the MicroSaver® Security System.

MicroSaver® is a registered trademark of Kensington

Microware Inc.

The logo is trademarked and owned by Kensington Microware

Inc.

E-12

Remote Control

VOLUME

RGB

VIDEO S-VIDEO POWER

AUTO ADJ.

MAGNIFY

PICTURE FREEZE MUTE ASPECT

ENTER

HELP

CANCEL

RD-372E

Remote Control Features

1. Infrared Transmitter

Direct the remote control toward the remote sensor on the pro-

jector cabinet.

2. Power Button

If power is applied, you can use this button to turn your projec-

tor on and off.

NOTE: To turn off the projector, press and hold the POWER button for

a minimum of two seconds.

3. Source Buttons

Press to select a video source.

4. Auto Adjust Button

Use this button to adjust Position-H/V and Pixel Clock/Phase

for an optimal picture. Some signals may not be displayed cor-

rectly, or in some cases it may take some time for a source to

switch between sources.

5. Magnify Buttons

Use the (+) or (–) button to adjust the image size up to 400%.

6. Volume Buttons

Press (+) to increase the volume and (–) to decrease it.

7. Picture Button

Press this button to display the Picture adjustment window.

Each time this button is pressed, the current picture adjust-

ment item will change as follows:

Brightness Contrast Color Hue Sharpness

Unavailable items will be skipped.

8. Freeze Button

This button will freeze a picture. Press again to resume mo-

tion.

9. 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. Aspect Button

Press this button to display the Aspect Ratio select window.

Each time this button is pressed, the current aspect ratio will

change as follows:

Normal Zoom Wide Zoom Cinema

You can also select the aspect ratio by using the Select

䊴

䊳

button. If no adjustments are performed within 3 seconds, the

Aspect Ratio select window will disappear. (See also page E-

28.)

11. Menu Button

Displays the menu.

12. Help Button

Provides information about the current signal and the status of

the projector.

13. Select (▲▼

䊴

䊳

) Buttons

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

wish to adjust.

䊴

䊳

: Use these buttons to change the level of a selected

menu item.

14. Enter Button

Executes your menu selection and activates items selected

from the menu.

15. Cancel Button

Press this button to exit the menu. While you are in the adjust-

ment or setting menu, pressing this button will return to the

previous menu.

E-13

Remote Control Battery Installation

1. Push to open the battery cover.

2. Remove both old batteries and install new ones (AA). En-

sure that you have the batteries’ polarity (+/–) aligned cor-

rectly.

3. Put the battery cover back on.

Do not mix different types of batteries or new and old bat-

teries.

30˚

Operating Range

The infrared signal operates by line-of-sight up to a distance

of approximately 22 feet (7m) and within a 60-degree angle of

the remote sensor. The projector will not function if there are

objects between the remote control and the remote sensor on

the projector or if strong light falls on the remote sensor. A

weak battery will also prevent the projector from operating prop-

erly.

This sample may be slightly different from actual range

Remote Control Precautions

• Handle the remote control carefully.

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

•Avoid excessive heat and humidity.

• Do not place the battery upside down.

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

remove the batteries.

CAUTION:

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type recom-

mended by the manufacturer.

Dispose of used batteries according to your local regu-

lations.

E-14

This section describes how to set up your LT75Z projector and how to connect video and audio sources.

Setting up Your Projector

Your LT75Z 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.

Ensure that the power cable 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.

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

30" (0.8 m) measured diagonally when the projector is roughly 4 feet (1.3m) from the wall or screen. The largest the image can be

is 200" (5.1 m) when the projector is about 30 feet (9.2m) from the wall or screen.

Screen and Projection Distance

The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of

installation.

2. INSTALLATION

406.4(W) X 304.8(H) / 160(W) X 120(H)

365.8(W) X 274.3(H) / 144(W) X 108(H)

304.8(W) X 228.6(H) / 120(W) X 90(H)

243.8(W) X 182.9(H) / 96(W) X 72(H)

203.2(W) X 152.4(H) / 80(W) X 60(H)

162.6(W) X 121.9(H) / 64(W) X 48(H)

121.9(W) X 91.4(H) / 48(W) X 36(H)

81.3(W) X 61.0(H) / 32(W) X 24(H)

61.0(W) X 45.7(H) / 24(W) X 18(H)

Screen size (Unit: cm / inch)

Lens center

1.8 / 71

2.7 / 107

3.6 / 143

4.6 / 180

5.5 / 216

6.9 / 271

8.3 / 325

9.2 / 361

1.3 / 53

200"

Screen

180"

150"

120"

100"

80"

60"

40"

30"

Throw distance

Unit: m/inch

E-15

inch

100

120

150

180

200

762

1016

1524

1702

1829

2032

2134

2286

2540

3048

3810

4572

5080

inch

120

144

160

610

813

1219

1361

1463

1626

1707

1829

2032

2438

3048

3658

4064

inch

108

120

457

610

914

1021

1097

1219

1280

1372

1524

1829

2286

2743

3048

inch

319

425

637

712

765

850

892

956

1062

1275

1593

1912

2125

inch

108

117

130

136

146

163

196

245

294

327

1210

1620

2460

2750

2960

3300

3460

3710

4130

4970

6220

7470

8310

–

inch

117

131

141

157

165

177

197

237

296

356

396

1470

1970

2980

3340

3590

3990

4190

4500

5000

6010

7530

9040

10050

inch

120

180

201

216

240

252

270

300

360

450

541

601

degree

14.8

14.7

14.5

14.4

14.5

14.4

14.3

–

degree

12.2

12.1

12.0

11.9

Diagonal Width Height

Screen Size

Wide Tele

B=Vertical distance between lens center and screen center

C=Throw distance

Distance Chart

Screen Bottom

Screen Center

Lens Center

Throw Distance

NOTE: Distances may vary +/-5%.

D=Vertical distance between lens center and

top of screen (bottom of screen for desktop)

α=Throw angle

Screen Center

Throw Distance

Screen Top

Lens Center

WARNING

• Installing your projector on the ceiling must be done by a qualified techni-

cian. Contact your 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 projec-

tor.

Reflecting the Image

Using a mirror to reflect your projector’s image

enables you to enjoy a much larger image. Con-

tact 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 pro-

jector cabinet or ▲▼ buttons on your remote con-

trol to correct the orientation. (See page E-31.)

E-16

VIDEO

S-VIDEO

RGB

AUDIO

PC CONTROL

Wiring Diagram

Component V cable RCA

⳯

3 (not supplied)

and Optional 15-pin-to-RCA (female)

⳯

3 cable

(ADP-CV1)

To video, S-video, and audio

inputs on the projector.

RGB Signal cable (supplied)

To mini D-Sub 15-pin connector on the projector. It is

recommended that you use a commercially available

distribution amplifier if connecting a signal cable longer

than the supplied cable.

NOTE: When using with a notebook PC, be sure to connect between the projector and the notebook PC before turning on the power to the

notebook PC. In most cases signal cannot be output from RGB output unless the notebook PC is turned on after connecting with the projector.

NOTE:

* 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 POWER button on the remote control, wait 90 seconds and then press the POWER button again to resume.

NOTE: If using video, S-video, or audio cables, the cables should be 3 m (9.8 feet) or shorter.

IBM VGA or Compatibles

(Desktop type or notebook type)

Macintosh

(Desktop type or notebook type)

Document Camera

DVD Player

(with component output)

VCR, DVD Player or

LaserDisc Player

To connect SCART output (RGB)

Before connections: An exclusive SCART adapter (ADP-SC1)

and a commercially available SCART cable are required for

this connection.

NOTE: Audio signal is not available for this connection.

1. Turn off the power to the projector and your video equip-

ment.

2. Use the NEC ADP-SC1 SCART adapter and a commer-

cially available SCART cable to connect the RGB input of

your projector and a SCART output (RGB) of your video

equipment.

Video equipment

such as DVD player

Projector

ADP-SC1

Commercially available SCART cable

Female

3. Turn on the power to the projector and your video equip-

ment.

4. Use the RGB button on the remote control to select the

RGB input.

5. Press the MENU button on the remote control to display

the menu.

6. From the Advanced menu, select [Projector Options] →

[Setup] → [Signal Select RGB] → [Scart].

SCART is a standard European audio-visual connector for TVs,

VCRs and DVD players. It is also referred to as Euro-connec-

tor.

NOTE: The ADP-SC1 SCART adapter is obtainable from your

NEC dealer in Europe.

Contact your NEC dealer in Europe for more information.

E-17

TO A

DJUS

TAT

ON/

STA

D BY

VIDEO

S-VID

UDIO

CONTROL

VIDEO

S-VIDEO

RGB

AUDIO

RGB INPUT

AUDIO

Connecting Your PC or Macintosh Computer

IBM VGA or Compatibles (Notebook type)

or Macintosh (Notebook type)

RGB signal cable (supplied)

To mini D-Sub 15-pin connector on the

projector. It is recommended that you use

a commercially available distribution

amplifier if connecting a signal cable

longer than the supplied one.

IBM VGA or Compatibles

(Desktop type)

Macintosh (Desktop type)

Audio cable

(not supplied)

For older Macintosh,

use a commercially

available pin

adapter to connect to

your Mac's video port.

Pin adapter for Macintosh

(not supplied)

NOTE: The new Macintosh computer such as G3 will have

the 15 pin HD connector. The LT75Z's "Plug and Play" data

will be downloaded to the Macintosh. Therefore, a Mac

adapter will not be necessary.

Connecting your PC to your LT75Z (SVGA) projector will enable you to project your computer’s

screen image for an impressive presentation.

To connect to a PC or Macintosh computer, simply:

1. Turn off the power to your projector and computer.

2. Use the supplied signal cable to connect your PC or Macintosh computer to the projector.

3. Turn on the projector and the computer.

4. 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.

E-18

-V

VIDEO

S-VIDEO

RGB

AUDIO

RGB INPUT

R L

Y Cb Cr

R L

AUDIO

Component

AUDIO

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. Use a 15-pin cable to connect your monitor to the RGB Monitor Output (Mini D-Sub 15 pin) connector on

your 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 DVD player.

NOTE: Refer to your DVD player’s owner’s manual for more information about your DVD player’s video output require-

ments.

Connecting Your DVD Player

Optional 15-pin-to-RCA (female)

⳯

3 cable (ADP-CV1)

DVD player

Audio Equipment

Component video cable RCA

⳯

3 (not suplied)

Audio cable (not supplied)

E-19

VID

-V

VIDEO

S-VIDEO

RGB

AUDIO

S-VIDEO

VIDEO

R L

VIDEO

Connecting Your VCR or Laser Disc Player

VCR/Laser disc player

S-video cable (not supplied)

Audio cable (not supplied)

Audio equipment

Document camera

Video cable (not supplied)

Use common RCA cables (not provided) to connect your VCR, laser disc player or document

camera to your projector.

To make these connections, simply:

1. Turn off the power to the projector and VCR, laser disc player or document camera.

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 an audio cable

(not supplied) to connect the audio from your VCR or laser disc player to your audio equipment

(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.

NOTE:

•A playback video image may not be displayed or may not be correctly displayed when the projector is used

with a scan converter.

• This model does not supports the NEC ISS-6010 and ISS-6020 switchers.

E-20

About Startup screen

(Menu Language Select screen)

When you first turn on the projector, you will get the Startup

screen.This screen gives you the opportunity to select one of

the seven menu languages: English, German, French, Itilan,

Spanish, Swedish and Japanese.

To select a menu language, follow these steps:

1. Use the ▲ or ▼ buttons to select one of the seven languages

for the menu.

2. Press the Enter button to execute the selection.

3. The Basic menu will be displayed in the language you have

selected.

To close the menu, press the Cancel button.

After this has been done, you can proceed to the advanced

menu operation.

If you want, you can select the menu language later. See “Lan-

guage” on page E-30.

Please select a menu language. English

Wählen Sie bitte die Menü Sprache aus. Deutsch

S'il vous plaît choisir la langue de menu. Français

Per favore di scegliere la lingua di menu. Italiano

Escoja por favor el idioma de menú. Español

Välj menyn språken. Svenska

Menu Language Select

Select "UP", "DOWN" & "ENTER"

Basic Menu

Source Select

Picture

Volume

Image Options

Projector Options

Information

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NEC LT75z Owner's manual

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