NEC VT676, VT575 User Manual

Portable Projector

VT676/VT670/VT575/VT470/VT47

User’s Manual

Important Information

Safety Cautions

Precautions

Please read this manual carefully before using your NEC VT676/VT670/VT575/VT470/VT47 Projector and keep the
manual handy for future reference. Your serial number is located on the bottom of your projector. Record it here:

CAUTION

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

CAUTION

TO PREVENT SHOCK, DO NOT OPEN THE CABINET.
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED 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.

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

DOC Compliance Notice (for Canada only)

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

Acoustic Noise Information Ordinance-3. GSGV (for Germany only):

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

CAUTION

Avoid displaying stationary images for a prolonged period of time.

Doing so can result in these images being temporarily sustained on the surface of the LCD panel.

If this should happen, continue to use your projector. The static background from previous images will
disappear.

CAUTION

Do not put the projector on its side when the lamp is turned on.

Doing so may cause damage to the projector.

WARNING TO CALIFORNIA RESIDENTS:

Handling the cables supplied with this product, will expose you to lead, a chemical known to the State of California
to cause birth defects or other reproductive harm. Wash hands after handling.

© NEC Viewtechnology, Ltd. 2004 - 2005

i

Important Information

RF Interference (for USA only)

WARNING

The Federal Communications Commission does not allow any modifications or changes to the unit EXCEPT those
specified by NEC Solutions (America), Inc. in this manual. Failure to comply with this government regulation could
void your right to operate this equipment. This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses, and can radi­ate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a particular
installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio / TV technician for help.

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

Important Safeguards

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

Installation

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

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

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 accor-

dance with any local building codes.

d. Please consult your dealer for more information.

Place the projector in a horizontal position

The tilt angle of the projector should not exceed 10 degrees, nor should the projector be installed in any way other than
the desktop and ceiling mount, otherwise lamp life could decrease dramatically.

10˚

ii

Important Information

Fire and Shock Precautions

1. Ensure that there is sufficient ventilation and that vents are unobstructed to prevent the build-up of heat inside
your projector. Allow at least 4 inches (10 cm) of space between your projector and a wall.

2. Prevent foreign objects such as paper clips and bits of paper from falling into your projector.

Do not attempt to retrieve any objects that might fall into your projector. Do not insert any metal objects such as
a wire or screwdriver into your projector. If something should fall into your projector, disconnect it immediately
and have the object removed by a qualified NEC service personnel.

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

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

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

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

7. Do not place any objects, which are easily affected by heat, in front of the projector lens or a projector exhaust
vent.

Doing so could lead to the object melting or getting your hands burned from the heat that is emitted from the
light output and exhaust.

8. The projector is designed to operate on a power supply of 100-240V AC 50/60 Hz. Ensure that your power
supply fits this requirement before attempting to use your projector.

9. Handle the power cable carefully and avoid excessive bending.

A damaged cord can cause electric shock or fire.

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

11. Do not touch the power plug during a thunderstorm. Doing so can cause electrical shock or fire.

12. Do not handle the power plug with wet hands.

CAUTION

• Do not try to touch the ventilation outlet on the left side (when seen from the front) as it can become heated
while the projector is turned on.

• Do no use the tilt-foot for purposes other than originally intended. Misuses such as gripping the tilt-foot or
hanging on the wall can cause damage to the projector.

• When carrying the projector by the carrying handle, make sure the two screws that attach the carrying handle
to the projector cabinet are tight. (VT676/VT670/VT470 only)

Insufficient tightening of the two screws could result in the projector falling and causing injury.

• Do not send the projector in the soft carrying case by parcel delivery service or cargo shipment. The projector
inside the soft carrying case could be damaged.

• Select [High] in Fan mode if you continue to use the projector for consecutive days. (From the menu, select
[Advanced] → [Fan Mode] → [High].)

• Do not unplug the power cable from the wall outlet under any one of the following circumstances.

Doing so can cause damage to the projector:

* While the Hour Glass icon appears.
* While the cooling fans are running. (The cooling fans continue to work for 30 seconds after the projector is

turned off).

iii

Important Information

Lamp Replacement

•To replace the lamp, follow all instructions provided on page 50.

• 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 30 seconds to elapse after turning off the projector. Then turn off the main power switch,
disconnect the power cable and allow 60 minutes to cool the projector before replacing the lamp.

iv

Table of Contents

Important Information ........................................................................... i

1. Introduction ...................................................................................... 1

 What's in the Box? ........................................................................................................ 1

 Introduction to the Projector ......................................................................................... 2

 Part Names of the Projector ......................................................................................... 4

Attaching the Supplied Carrying Handle (VT676/VT670/VT470 only) .................... 5

Top Features ........................................................................................................... 6

Te r minal Panel Features ......................................................................................... 7

 Part Names of the Remote Control .............................................................................. 8

Battery Installation ........................................................................................... 10

Remote Control Precautions ............................................................................ 10

Operating Range for Wireless Remote Control ................................................ 10

2. Installation and Connections ....................................................... 11

 Setting Up the Screen and the Projector .................................................................... 11

Selecting a Location.............................................................................................. 11

VT676/VT670/VT575/VT470 ........................................................................... 11

VT47 ................................................................................................................ 12

Throw Distance and Screen Size.......................................................................... 13

 Making Connections ................................................................................................... 15

Enabling the computer’s external display .............................................................. 15

Connecting Your PC or Macintosh Computer........................................................ 15

To connect SCART output (RGB) ......................................................................... 16

Connecting an External Monitor ........................................................................... 17

Connecting Your DVD Player with Component Output.......................................... 18

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

Connecting the Supplied Power Cable ................................................................. 20

3. Projecting an Image (Basic Operation)...................................... 21

 Tur ning on the Projector ............................................................................................. 21

Note on Startup Screen (Menu Language Select screen) .................................... 22

 Selecting a Source ..................................................................................................... 23

 Adjusting the Picture Size and Position ...................................................................... 24

 Correcting Keystone Distortion ................................................................................... 26

 Optimizing RGB Picture Automatically ....................................................................... 28

 Tur ning Up or Down Volume ....................................................................................... 28

 Tur ning off the Projector ............................................................................................. 29

 After Use..................................................................................................................... 29

v

Table of Contents

4. Convenient Features ...................................................................... 30

 Tur ning Off the Image and Sound............................................................................... 30

 Freezing a Picture ...................................................................................................... 30

 Enlarging and Moving a Picture.................................................................................. 30

 Using the Remote Mouse Function (VT676/VT670/VT470 only) ............................... 31

5. Using On-Screen Menu ................................................................. 32

 Using the Menus......................................................................................................... 32

 Menu Elements........................................................................................................... 34

 List of Menu Items ...................................................................................................... 35

 Menu Descriptions & Functions [Picture].................................................................... 37

 Menu Descriptions & Functions [Image] ..................................................................... 39

 Menu Descriptions & Functions [Setup] ..................................................................... 40

 Menu Descriptions & Functions [Advanced] ............................................................... 42

 Menu Descriptions & Functions [Information] ............................................................. 46

 Menu Descriptions & Functions [Default] ................................................................... 47

6. Maintenance .................................................................................... 48

 Cleaning or Replacing the Filter ................................................................................ 48

 Cleaning the Cabinet and the Lens ........................................................................... 49

 Replacing the Lamp................................................................................................... 50

7. Appendix ........................................................................................... 53

 Troubleshooting ......................................................................................................... 53

 Specifications ............................................................................................................ 56

 Cabinet Dimensions .................................................................................................. 58

VT676/VT670/VT575/VT470................................................................................. 58

VT47 ..................................................................................................................... 59

 Pin Assignments of D-Sub COMPUTER Input Connector ........................................ 60

 Compatible Input Signal List ...................................................................................... 61

 PC Control Codes and Cable Connection ................................................................. 62

 Optional Presentation Remote Control Kit (PR52KIT)............................................... 64

 Troubleshooting Check List ........................................................................................ 68

쐎 TravelCare.................................................................................................................. 70

vi

1. Introduction

 What's in the Box?

Make sure your box contains everything listed. If any pieces are missing, contact your dealer.
Please save the original box and packing materials if you ever need to ship your projector.

Projector

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Lens cap
(24F40111)

Power cable
(US: VT676/VT670/VT470: 7N080213)
(US: VT575/VT47: 7N080212)
(EU: VT676G/VT670G/VT470G: 7N080007)
(EU: VT575G/VT47G: 7N080005)

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Soft carrying case
(24BS7423)

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RGB/VGA signal cable
(7N520032)

Remote control
(7N900522)

Batteries (AAA⳯2)

Quick

Setup

Guide

Important

Information

Quick Setup Guide
Important Information

For VT676, VT670 and VT470 only

Remote mouse receiver
(7N900561)

Carrying handle (24F39671)
Screw (M4⳯2: 24N07502)
Flathead screwdriver (24H51611)

CD-ROM
User’s manual

1

For North America only

Registration card
Limited warranty

For Europe only

Guarantee policy

1. Introduction

 Introduction to the Projector

This section introduces you to your new VT676/VT670/VT575/VT470/VT47 Projector and describes the features and
controls.

Congratulations on Your Purchase of The VT676/VT670/VT575/VT470/VT47 Projector

The VT676/VT670/VT575/VT470/VT47 is one of the very best projectors available today. The VT676/VT670/VT575/
VT470/VT47 enables you to project precise images up to 300 inches across (measured diagonally) from your PC or
Macintosh computer (desktop or notebook), VCR, DVD player, document camera, or a laser disc player.
You can use the projector on a tabletop or cart, you can use the projector to project images from behind the screen,
and the projector can be permanently mounted on a ceiling*1. The remote control can be used wirelessly.

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.

Features you'll enjoy:

•Auto vertical keystone correction up to +/– 30 degrees

• Built-in Wall Color Correction presets provide for adaptive color correction when projecting onto non-white
screen material

• Quick Start & Quick Shutoff

The quick start & quick shutoff function means you can set up or put away the projector without delay.

Nine seconds after turning on the power, the projector is ready to display PC or video images.

When you're finished, the fans stop in 30 seconds after turning off the power, so you can put away the projector
quickly after the conference or class.

•Low level operation noise

• Short focal length lens

• 130W lamp (110W Eco mode) : VT575/VT47
180W lamp (150W Eco mode) : VT670/VT470
190W lamp (150W Eco mode) : VT676

• Direct keys for source selection

•New Color Management system

•New menu design improves operation

• Safety protect by Security function
Security feature prevents the projector from being used by unauthorized individuals.
Keyword prevents unauthorized individuals from changing projector settings or adjustments.

• NEC’s exclusive Advanced AccuBlend intelligent pixel blending technology - an extremely accurate image
compression technology - offers a crisp image with UXGA (1600⳯1200) resolution*

• Supports most IBM VGA, SVGA, XGA , SXGA/UXGA(with Advanced AccuBlend)*2, Macintosh, component
signal (YCbCr/ YPbPr) or any other RGB signals within a horizontal frequency range of 24 to 100 kHz and a
vertical frequency range of 50 to 120 Hz. This includes NTSC, PAL, PAL-N, PAL-M, PAL60, SECAM and
NTSC4.43 standard video signals.

2

*

A UXGA (1600⳯1200) and SXGA image (1280⳯1024) are displayed with NEC’s Advanced AccuBlend on
VT676, VT670 and VT575.

A UXGA (1600⳯1200), SXGA (1280⳯1024) and XGA (1024⳯768) image are displayed with NEC’s Ad­vanced AccuBlend on VT470.

An SXGA (1280⳯1024) and XGA (1024⳯768) images are displayed with NEC’s Advanced AccuBlend on
VT47.

2

2

1. Introduction

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-N: TV standard used in Argentine, Paraguay and Uruguay.
PAL-M: TV standard used in Brazil.
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 use the supplied wireless remote control and remote mouse receiver to operate your PC mouse
wireless from across the room. The remote mouse receiver supports almost any PC using a USB connection
(VT676, VT670 and VT470).

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

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

About this user's manual

The fastest way to get started is to take your time and do everything right the first time. Take a few minutes now to
review the user's manual. This may 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.

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

• Mac and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries.

• Windows, Windows 98, Windows Me, Windows XP or Windows 2000 are trademarks or registered trademarks
of Microsoft Corporation.

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

3

 Part Names of the Projector

AUDIO OUT

S-VIDEO IN

COMPUTER 1 IN

COMPUTER OUT

PC CONTROL

AUDIO

AUDIO

COMPUTER 2 IN

VIDEO IN

AUDIO

L/MONO

R

AUDIO

L/MONO

R

Front/Top

1. Introduction

Zoom Lever (VT676/VT670/VT575/VT470)

Digital Zoom Button (VT47)

Controls
(See page 6)

(See page 25)

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Focus Ring

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Ventilation (inlet) / Filter Cover
(See page 48)

(See page 25)

Remote sensor

(See page 10)

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Built-in Security Slot ( )*

Lens

Ventilation (inlet)

Adjustable Tilt Foot Lever
(See page 24)

Lens Cap

Adjustable Tilt Foot
(See page 24)

* 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.

Rear

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Monaural Speaker

(1W)

ADJ.

Remote sensor
(See page 10)

AC IN

Ventilation (outlet)
Heated air is exhausted from here.

AC Input

Te r minal Panel

(See page 7)

Connect the supplied power cable's two-pin plug here, and
plug the other end into an active wall outlet. (See page 20)

Main Power Switch
When you plug the supplied power cable into an active wall outlet
and turn on the Main Power, the POWER indicator turns orange
and the projector is in standby mode.
(See page 21)

4

1. Introduction

Bottom

Lamp Cover

(See page 50)
Adjustable Tilt Foot
(See page 24)

Adjustable Tilt Foot Lever
(See page 24)

Adjustable Tilt Foot Lever

(See page 24)

For VT676, VT670 and VT470 only

Attaching the supplied carrying handle

You can carry the projector by attaching the supplied carrying handle securely to the projector.
To attach the supplied carrying handle, use the supplied flathead screwdriver and two screws.
Place a soft cloth on the working surface before turning the projector over to prevent scratching the top cover.
Make sure that the carrying handle is attached with correct orientation as shown below.

Flathead screwdriver

Screw

Carrying handle

CAUTION

When carrying the projector by the carrying handle, make sure the two screws that attach the carrying handle
to the projector cabinet are tight.

5

1. Introduction

Top Features

VT676/VT670/VT575/VT470

10 2 3 411

SELECT

12 13

1. POWER Button (ON / STAND BY) ( )

Use this button to turn the power on and off when the
main power is supplied and the projector is in standby
mode.
To turn on the projector, press and hold this button for
a minimum of two seconds. To turn off the projector,
press this button twice.

2. POWER Indicator

When this indicator is green, the projector is on; when
this indicator is orange, it is in standby mode. See the
Power Indicator section on page 53 for more details.

3. STATUS Indicator

If this light blinks red rapidly, it indicates that an error
has occurred, the lamp cover is not attached properly
or the projector has overheated. If this light remains
orange, it indicates that you have pressed a cabinet
key while the Cabinet Button Lock is enabled. See the
Status Indicator section on page 53 for more details.

4. LAMP Indicator

If this light blinks red rapidly, it's warning you that the
lamp has reached the end of its usable life. After this
light appears, replace the lamp as soon as possible
(See page 50). If this is lit green continually, it indi­cates that the lamp mode is set to Eco. See the Lamp
Indicator section on page 53 for more details.

5. VIDEO Button

Press this button to select a video source from a VCR,
DVD player, laser disc player or document camera.

6. S-VIDEO Button

Press this button to select an S-Video source from a
VCR, DVD player, laser disc player or document cam­era.

9

LAMP

STATUS

POWER VIDEO

ON/STAND BY

S-VIDEO COMPUTER-1 COMPUTER-2

AUTO

ADJ.

156778

7. COMPUTER1 and 2 Buttons (one COMPUTER
port on VT47) Button

Press this button to select an RGB source from com­puter or component equipment connected to your
COMPUTER 1 or 2 port.

8. AUTO ADJ. Button

Use this button to adjust an RGB source for an opti­mal picture (See page 28).

9. Source Indicators

When one of the COMPUTER, VIDEO or S-VIDEO
input is selected, the corresponding source indicator
lights.

10. MENU Button

Displays the menu.

11. SELECT  / Volume Buttons
 : Use these buttons to select the menu of the

item you wish to adjust.

 : Use these buttons to change the level of a se-

lected menu item. A press of the  button ex-
ecutes the selection. When no menus appear,
these buttons work as a volume control.

12. ENTER Button

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

13. EXIT Button

Pressing this button will return to the previous menu.
While you are in the main menu, pressing this button
will close the menu.

VT47

COMPUTER

AUTO
ADJ.

8

6

1. Introduction

Te r minal Panel Features

VT676/VT670/VT575/VT470

4 1

VIDEO IN

S-VIDEO IN

L/MONO

L/MONO

AUDIO

AUDIO

R

R

AUDIO OUT

325

4 1

VIDEO IN

AUDIO

AUDIO

R

VT47

L/MONO

S-VIDEO IN

3 2 5

1.

COMPUTER 1 and 2 IN / Component Input Connector

(Mini D-Sub 15 Pin) (One COMPUTER port on VT47)

Connect your computer or other analog RGB equip­ment such as IBM compatible or Macintosh comput­ers. Use the supplied RGB cable to connect to your
computer. This also serves as a component input con­nector that allows you to connect a component video
output of component equipment such as a DVD player.
This connector also supports SCART output signal.
See page 16 for more details.

COMPUTER AUDIO Input Mini Jack (Stereo Mini)

This is where you connect the audio output from your
computer or DVD player when connected to the COM­PUTER input. A commercially available audio cable is
required.

2.

MONITOR OUT Connector (Mini D-Sub 15 Pin)

You can use this connector to loop your computer
image to an external monitor from the RGB input
source.

This connector outputs RGB signal in standby mode.

AUDIO OUT Mini Jack (Stereo Mini)

(Not available on VT47)

You can use this jack to output sound from the cur­rently selected source (COMPUTER, VIDEO or S­VIDEO). Output sound level can be adjusted in accor­dance with the sound level of the internal speaker.

Note that this cannot be used as a headphone jack.

(When audio equipment is connected, the projector
speaker is disabled.)

When a cable mini-plug is inserted into this jack, both
the right and left audio signals are not mixed, but sepa­rate.

COMPUTER 1 IN

MONITOR OUT

COMPUTER IN

MONITOR OUT

AUDIO

PC CONTROL

PC CONTROL

COMPUTER 2 IN

For example, when a cable mini-plug is inserted into
the left AUDIO IN jack only, only left sound is output.

3. S-VIDEO IN Connector (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.

S-VIDEO AUDIO Input Jacks L/R (RCA)

These are your left and right channel audio inputs for
stereo sound from an S-Video source.

4. VIDEO IN Connector (RCA)

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

VIDEO AUDIO Input Jacks L/R (RCA)

These are your left and right channel audio inputs for
stereo sound from a Video source.

NOTE: The VIDEO AUDIO inputs can also be used as S­VIDEO AUDIO inputs on VT47.

5. PC CONTROL Port (DIN 8 Pin)

Use this port to connect a PC or control system. This
enables you to control the projector using serial com­munication protocol. If you are writing your own pro­gram, typical PC control codes are on page 62.

7

 Part Names of the Remote Control

1. Introduction

1

OFF

3

MAGNIFY PAGE

PIC-MUTE

4

7

MENU

POWER

ON

UP

DOWN

2

6

5

8

9

11

13

14

17

ENTER

L-CLICK

VIDEO

S-VIDEO

VOLUME

EXIT

R-CLICK

MOUSE

AUTO ADJ.COMPUTER

1

2

ASPECT HELP

FREEZEPICTURE

10

12

16
15

18
20

21
19

NOTE: If you are using a Macintosh computer, you can click
either the MOUSE R-CLICK or MOUSE L-CLICK button to
activate the mouse. (VT676/VT670/VT470 only)

1. Infrared Transmitter

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

2. POWER ON Button

When the main power is on, you can use this button
to turn your projector on.

5. PIC-MUTE Button

This button turns off the image and sound for a short
period of time. Press again to restore the image and
sound.

6. PAGE UP/DOWN Button
(Not available on VT575 and VT47)

Use these buttons to operate your computer with the
supplied remote mouse receiver. See page 31. You
can use these buttons to scroll the viewing area of the
window or to move to the previous or next slide in
PowerPoint on your computer.

7. MENU Button

Displays the menu for various settings and adjust­ments.

8. SELECT  (Mouse) Button
 : Use these buttons to select the menu of the

item you wish to adjust.

 : Use these buttons to change the level of a se-

lected menu item. A press of the  button ex-

ecutes the selection.
When an image is magnified, the SELECT 
button moves the image. See page 30.

9. ENTER Button

Use this button to enter your menu selection. It works
the same way as the ENTER button on the cabinet.
See page 6.

10. EXIT Button

It works the same way as the EXIT button on the cabi­net. See page 6.

11. MOUSE L-CLICK Button
(Not available on VT575 and VT47)

This button works as the mouse left button when the
supplied remote mouse receiver is connected with your
computer. See page 31.

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

3. POWER OFF Button

You can use this button to turn your projector off.

NOTE: To turn off the projector, press the POWER OFF
button twice.

4. MAGNIFY (+)(–) Button

Use this button to adjust the image size up to 400%.
The image is magnified about the center of the screen.
See page 30.

12. MOUSE R-CLICK Button
(Not available on VT575 and VT47)

This button works as the mouse right button when the
supplied remote mouse receiver is connected with your
computer. See page 31.

13. VIDEO Button

Press this button to select a video source from a VCR,
DVD player, laser disc player or document camera.

14. S-VIDEO Button

Press this button to select an S-Video source from a
VCR.

8

1. Introduction

3

4

7

9

11

13

14

17

OFF

MAGNIFY PAGE

PIC-MUTE

MENU

ENTER

L-CLICK

VIDEO

S-VIDEO

VOLUME

ON

POWER

UP

DOWN

EXIT

R-CLICK

MOUSE

AUTO ADJ.COMPUTER

1

2

ASPECT HELP

FREEZEPICTURE

1

2

6

5

8

10

12

16
15

18
20

21
19

20. HELP Button

Provides the information on the current signal and pro­jector settings. See page 46.

21. FREEZE Button

This button will freeze a picture. Press again to re­sume motion.

15. COMPUTER 1/2 Button

Press this button to select COMPUTER 1 or 2 (or Com­ponent) input. (One COMPUTER port on VT47)

16. AUTO ADJ. Button

Use this button to adjust an RGB source for an opti­mal picture.
See page 28.

17. VOLUME (+)(–) Button

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

18. ASPECT Button

Press this button once to display the Aspect Ratio
select menu. Keep pressing will change aspect ratios.
See page 39.

19. PICTURE Button

Press this button to display the Picture adjustment
menu to adjust Wall Color, Picture Management,
Brightness, Contrast, Sharpness, Color and Hue. See
pages 37 to 38.

9

Battery Installation

1. Introduction

1

Press firmly and slide the
battery cover off.

2

Remove both old batteries and
install new ones (AAA). Ensure
that you have the batteries' po­larity (+/–) aligned correctly.

3

Slip the cover back over the bat­teries until it snaps into place. Do
not mix different types of batter­ies or new and old batteries.

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, remove the batteries.

• Do not place the batteries upside down.

• Do not use new and old batteries together, or use different types of batteries together.

• Dispose of used batteries according to your local regulations.

Operating Range for Wireless Remote Control

Remote sensor on projector cabinet

7m/22 feet

30°

30°

30°

• The infrared signal operates by line-of-sight up to a distance of about 22 feet/7 m and within a 60-degree angle of
the remote sensor on the projector cabinet.

• The projector will not respond if there are objects between the remote control and the sensor, or if strong light falls
on the sensor. Weak batteries will also prevent the remote control from properly operating the projector.

30°

7m/22 feet

Remote control

10

2. Installation and Connections

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

1

Your projector is simple to set up and use.
But before you get started, you must first:

z Set up a screen and the projector.

x Connect your computer or video equip-

ment to the projector. See pages 15 to

19.

c Connect the supplied power cable. See

2

3

page 20.

NOTE: Ensure that the power cable and any
other cables are disconnected before moving
the projector. When moving the projector or
when it is not in use, cover the lens with the

To the wall outlet.

lens cap.

 Setting Up the Screen and the Projector

Selecting a Location (VT676/VT670/VT575/VT470)

The further your projector is from the screen or wall, the larger the image. The minimum size the image can be is
approximately 21" (0.53 m) measured diagonally when the projector is roughly 29 inches (0.73 m) from the wall or
screen. The largest the image can be is 300" (7.6 m) when the projector is about 393 inches (10 m) from the wall or
screen. Use the drawing below as a guide.

Screen Size (Unit: cm/inch)

609.6(W)⳯457.2(H) / 240(W)⳯180(H)

300"

Screen Size

487.7(W)⳯365.8(H) / 192(W)⳯144(H)

406.4(W)⳯304.8(H) / 160(W)⳯120(H)

365.8(W)⳯274.3(H) / 144(W)⳯108(H)

304.8(W)⳯228.6(H) / 120(W)⳯90(H)

243.8(W)⳯182.9(H) / 96(W)⳯72(H)

203.2(W)⳯152.4(H) / 80(W)⳯60(H)

162.6(W)⳯121.9(H) / 64(W)⳯48(H)

121.9(W)⳯91.4(H) / 48(W)⳯36(H)

81.3(W)⳯61.0(H) / 32(W)⳯24(H)

61.0(W)⳯45.7(H) / 24(W)⳯18(H)

42.7(W)⳯32(H) / 17(W)⳯13(H)

Lens center

240

"

200

"

180"

150"

120"

100"

80"

60"

40"

30"

21"

0.7/

29

1.0/38

1.3/

A
C
I
N

2.0/78

51

2.6/104

3.3/130

4.0/157

5.0/196

6.6/262

6.0/236

Distance (Unit: m/inch)

8.0/314

10.0/393

11

2. Installation and Connections

Selecting a Location (VT47)

The further your projector is from the screen or wall, the larger the image. The minimum size the image can be is
approximately 25" (0.64 m) measured diagonally when the projector is roughly 23 inches (0.6 m) from the wall or
screen. The largest the image can be is 300" (7.6 m) when the projector is about 287 inches (7.3 m) from the wall or
screen. Use the drawing below as a guide.

Screen Size (Unit: cm/inch)

609.6(W)⳯457.2(H) / 240(W)⳯180(H)

300

487.7(W)⳯365.8(H) / 192(W)⳯144(H)

Screen Size

"

240

406.4(W)⳯304.8(H) / 160(W)⳯120(H)

365.8(W)⳯274.3(H) / 144(W)⳯108(H)

180

304.8(W)⳯228.6(H) / 120(W)⳯90(H)

"

200

"

"

150

243.8(W)⳯182.9(H) / 96(W)⳯72(H)

203.2(W)⳯152.4(H) / 80(W)⳯60(H)

162.6(W)⳯121.9(H) / 64(W)⳯48(H)

121.9(W)⳯91.4(H) / 48(W)⳯36(H)

81.3(W)⳯61.0(H) / 32(W)⳯24(H)

50.8(W)⳯38.1(H) / 20(W)⳯15(H)

Lens center

100

80

60

"

40

"

25"

0.6/
23

AC
I
N

120

"

"

1.0/37

"

"

1.4/56

1.9/76

2.4/95

2.9/114

3.6/143

4.4/172

5.8/229

4.9/191

7.3/287

Distance (Unit: m/inch)

NOTE: Digital Zoom can cause result in a blurry image because zooming is made electronically.

12

2. Installation and Connections

Throw Distance and Screen Size

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

Distance Chart

Screen Width

Screen Diagonal

Screen Height

Throw Angle (움)

A
C
I
N

VT676/VT670/VT575/VT470

Screen Size B C

Diagonal Width Height

inch

inch

21

17
20

25

24

30
40

32
48

60

58

72
80

64
67

84

72

90
100
120
150
180
200
210
240
270
300

120
144
160
168
192
216
240

80
96

inch

108
120
126
144
162
180

inch

5

13

6

15

7

18

10

24

14

36

17

43

19

48

20

50

22

54

24

60

29

72

36

90

43
48
50
57
65
72

Lens Center

Wide – Tele

inch
–– – 29
28 – 34
34 – 42
46 – 56
70 – 85
84 – 102
93 – 113
98 – 119

105 – 128
117 – 142
141 – 171
176 – 214
212 – 257
236 – 285
247 – 300
283 – 343
319 – 386
354 – 429

Screen center

(B)

(D)

Throw Distance (C)

-1

-2

-2

-2

-4

-4

-5

-5

-6

-6

-7

-9

α

Wide – Tele

degree

–– – 9.9

12.0 – 9.8

11.9 – 9.8

11.7 – 9.7

11.6 – 9.6

11.6 – 9.6

11.6 – 9.6

11.6 – 9.6

11.5 – 9.6

11.5 – 9.6

11.5 – 9.5

11.5 – 9.5

11.5 – 9.5

11.5 – 9.5

11.5 – 9.5

11.5 – 9.5

11.4 – 9.5

11.4 – 9.5

inch

D

-11

-12

-13

-15

-17

-18

Screen Bottom

Diagonal Width Height

mm

1016
1524
1829
2032
2134
2286
2540
3048
3810
4572
5080
5334
6096
6858
7620

B =Vertical distance between lens center and

screen center
C = Throw distance
D =Vertical distance between lens center and

bottom of screen (top of screen for ceiling

application)
α = Throw angle

NOTE: Distances may vary +/-5%.

Screen Size B C

mm

427
508
610

813
1219
1463
1626
1707
1829
2032
2438
3048
3658
4064
4267
4877
5486
6096

mm

320
381
457
610

914
1097
1219
1280
1372
1524
1829
2286
2743
3048
3200
3658
4115
4572

533
635
762

mm

130
150
180
240
360
440
490
510
550
610
730

910
1090
1210
1270
1460
1640
1820

Wide – Tele

mm
––– – 730
720 – 870

870 – 1060
1170 – 1420
1770 – 2150
2130 – 2590
2370 – 2880
2490 – 3020
2670 – 3240
2970 – 3600
3580 – 4330
4480 – 5420
5380 – 6520
5980 – 7240
6280 – 7610
7190 – 8700
8090 – 9790
8990 – 10880

mm

-110

-120

-130

-140

-160

-190

-230

-280

-310

-330

-370

-420

-470

D

Wide – Tele

degree

-30

–– – 9.9

-40

12.0 – 9.8

-50

11.9 – 9.8

-60

11.7 – 9.7

-90

11.6 – 9.6

11.6 – 9.6

11.6 – 9.6

11.6 – 9.6

11.5 – 9.6

11.5 – 9.6

11.5 – 9.5

11.5 – 9.5

11.5 – 9.5

11.5 – 9.5

11.5 – 9.5

11.5 – 9.5

11.4 – 9.5

11.4 – 9.5

α

VT47

Screen Size

Diagonal Width Height

inch

inch

inch

15

20
24

18

32

24
36

48
58

43

64

48
50

67
72

54

80

60
72

96

90
108
120
126
144
162
180

100
120
150
180
200
210
240
270
300

25
30
40
60
72
80
84
90

120
144
160
168
192
216
240

inch

-11

-12

-13

-15

-17

-18

α

degree

-2

14.6

-2

14.5

-2

14.4

-4

14.2

-4

14.2

-5

14.2

-5

14.2

-6

14.1

-6

14.1

-7

14.1

-9

14.1

14.1

14.0

14.0

14.0

14.0

14.0

BD

C

inch

inch

23

6

28

7

37

10

56

14

68

17

76

19

80

20

85

22

95

24

114

29

143

36

172

43

191

48

201

50

229

57

258

65

287

72

Diagonal Width Height

mm

635

762
1016
1524
1829
2032
2134
2286
2540
3048
3810
4572
5080
5334
6096
6858
7620

13

Screen Size

mm

508
610

813
1219
1463
1626
1707
1829
2032
2438
3048
3658
4064
4267
4877
5486
6096

mm

381
457
610

914
1097
1219
1280
1372
1524
1829
2286
2743
3048
3200
3658
4115
4572

mm

-110

-120

-130

-140

-160

-190

-230

-280

-310

-330

-370

-420

-470

-40

-50

-60

-90

α

degree

14.6

14.5

14.4

14.2

14.2

14.2

14.2

14.1

14.1

14.1

14.1

14.1

14.0

14.0

14.0

14.0

14.0

BD

C

mm

mm

580

150

700

180

950

240

1440

360

1730

440

1920

490

2020

510

2170

550

2410

610

2900

730

3630

910

4360

1090

4850

1210

5100

1270

5830

1460

6560

1640

7290

1820

2. Installation and Connections

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.

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 system. If you're using a mir­ror system and your image is inverted, use the MENU
and SELECT buttons on your projector cabinet or your
remote control to correct the orientation. See page 41.

14

2. Installation and Connections

 Making Connections

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.
* 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.

Enabling the computer’s external display

Displaying an image on the notebook PC’s screen does not necessarily mean it outputs a signal to the projector.
When using a PC compatible laptop, a combination of function keys will enable/disable the external display.
Usually, the combination of the ‘Fn” key along with one of the 12 function keys gets the external display to come on
or off. For example, NEC laptops use Fn + F3, while Dell laptops use Fn + F8 key combinations to toggle through
external display selections.

Connecting Your PC or Macintosh Computer

NOTE: • VT676/VT670/VT575/VT470: The COMPUTER 1 connector supports Plug & Play (DDC2).

• VT47: The COMPUTER connector supports Plug & Play (DDC2).

VT676/VT670/VT575/VT470

COMPUTER 1 IN

VIDEO IN

AUDIO

L/MONO

S-VIDEO IN

AUDIO

L/MONO

RGB/VGA 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.

PHONE

IBM VGA or Compatibles (Notebook
type) or Macintosh (Notebook type)

VT47

COMPUTER 2 IN

COMPUTER 1 IN

AUDIO

PC CONTROL

COMPUTER 2 IN

AUDIO

AC IN

R

AUDIO OUT

R

MONITOR OUT

Audio cable
(not supplied)

NOTE: For older Macintosh, use a
commercially available pin adapter
(not supplied) to connect to your
Mac's video port.

COMPUTER IN

AUDIO

COMPUTER IN

AUDIO

VIDEO IN

R

L/MONO

S-VIDEO IN

PHONE

MONITOR OUT

PC CONTROL

IBM PC or Compatibles (Desktop type)
or Macintosh (Desktop type)

Connecting your PC or Macintosh computer to your projector will enable you to project your computer's screen image
for an impressive presentation.

To connect to a PC or Macintosh, simply:

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

2. Use the supplied RGB/VGA signal cable to connect your PC or Macintosh to the projector.

3. Connect the supplied power cable. See page 20.

4. Turn on the projector and the computer.

5. If the projector goes blank after a period of inactivity, it may be caused by a screen saver installed on the computer
you've connected to the projector.

15

2. Installation and Connections

NOTE: The projector is not compatible with video decoded outputs of either the NEC ISS-6020 and ISS-6010 switchers.

NOTE: An image may not be displayed correctly when a Video or S-Video source is played back via a commercially available scan
converter.
This is because the projector will process a video signal as a computer signal at the default setting. In that case, do the following.
* When an image is displayed with the lower and upper black portion of the screen or a dark image is not displayed correctly:

Project an image to fill the screen and then press the AUTO ADJ button on the remote control or the projector cabinet.

To connect SCART output (RGB)

Projector

COMPUTER 2 IN

Video equipment such as DVD player

COMPUTER 1 IN

VIDEO IN

R

AUDIO

L/MONO

S-VIDEO IN

AUDIO OUT

AUDIO

R

L/MONO

COMPUTER 1 IN

MONITOR OUT

AUDIO

PC CONTROL

Female

AC IN

To COMPUTER 1 input
(COMPUTER input on VT47)

ADP-SC1

Commercially available SCART cable

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 equipment.

2. Use the NEC ADP-SC1 SCART adapter and a commercially available SCART cable to connect the RGB input of

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

3. Connect the supplied power cable. See page 20.

4. Turn on the power to the projector and your video equipment.

5. Use the COMPUTER 1 button on the projector cabinet to select the COMPUTER 1 input.

Use the COMPUTER button on the projector cabinet to select the COMPUTER input on VT47.

6. Press the MENU button on the projector cabinet to display the menu.

7. From the menu, select [Advanced] → [Signal Select] → [Computer 1 ([Computer] on VT47)] → [Scart].

SCART is a standard European audio-visual connector for TVs, VCRs and DVD players. It is also referred to as
Euro-connector.

NOTE: The ADP-SC1 SCART adapter is obtainable from your NEC dealer in Europe. Contact your NEC dealer in Europe for more
information.

16

Connecting an External Monitor

VIDEO IN

R

AUDIO

S-VIDEO IN

L/MONO

AUDIO OUT

AUDIO

R

L/MONO

MONITOR OUT

MONITOR OUT

COMPUTER 1 IN

MONITOR OUT

AUDIO

PC CONTROL

COMPUTER 2 IN

AUDIO

AC IN

2. Installation and Connections

RGB/VGA signal cable (supplied)

RGB/VGA signal cable (not supplied)

You can connect a separate, external monitor to your projector to simultaneously view on a monitor the RGB analog
image you're projecting.

To do so:

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

Use an RGB/VGA cable to connect your monitor to the MONITOR OUT (Mini D-Sub 15 pin) connector on your projector.

2.

3. Connect the supplied power cable. See page 20.

4. Turn on the projector, monitor and the computer.

NOTE: Daisy chain connection is not possible.

17