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iii
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).
iv
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.
Important Information
vi
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
¾ TravelCare.................................................................................................................. 70
1
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.
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Projector
Lens cap
(24F40111)
Power cable
(US: VT676/VT670/VT470: 7N080213)
(US: VT575/VT47: 7N080212)
(EU: VT676G/VT670G/VT470G: 7N080007)
(EU: VT575G/VT47G: 7N080005)
RGB/VGA signal cable
(7N520032)
Soft carrying case
(24BS7423)
Quick
Setup
Guide
Important
Information
CD-ROM
User’s manual
For North America only
Registration card
Limited warranty
For Europe only
Guarantee policy
Quick Setup Guide
Important Information
1. Introduction
For VT676, VT670 and VT470 only
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Remote control
(7N900522)
Batteries (AAA
ן
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Remote mouse receiver
(7N900561)
Carrying handle (24F39671)
Screw (M4
ן
2: 24N07502)
Flathead screwdriver (24H51611)
2
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 accor-
dance 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 (1600ן1200) resolution*
2
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 (1600ן1200) and SXGA image (1280ן1024) are displayed with NEC’s Advanced AccuBlend on
VT676, VT670 and VT575.
A UXGA (1600ן1200), SXGA (1280ן1024) and XGA (1024ן768) image are displayed with NEC’s Ad-
vanced AccuBlend on VT470.
An SXGA (1280ן1024) and XGA (1024ן768) images are displayed with NEC’s Advanced AccuBlend on
VT47.
62
7. Appendix
PC Control Codes and Cable Connection
PC Control Codes (VT676/VT670/VT575/VT470)
Function Code Data
POWER ON 02H 00H 00H 00H 00H 02H
POWER OFF 02H 01H 00H 00H 00H 03H
INPUT SELECT COMPUTER 1 02H 03H 00H 00H 02H 01H 01H 09H
INPUT SELECT COMPUTER 2 02H 03H 00H 00H 02H 01H 02H 0AH
INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH
INPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H
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
PC Control Codes (VT47)
Function Code Data
POWER ON 02H 00H 00H 00H 00H 02H
POWER OFF 02H 01H 00H 00H 00H 03H
INPUT SELECT COMPUTER 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
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
Cable Connection
Communication Protocol
Baud rate ........................................ 19200 bps
Data length ..................................... 8 bits
Parity .............................................. No parity
Stop bit .......................................... One bit
X on/off .......................................... None
Communications procedure ........... Full duplex
NOTE: Depending on the equipment, a lower baud rate may be recommended for long cable runs.
NOTE: Contact your local dealer for a full list of the PC Contorol Codes if needed.
69


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