NEC Vt770 Projector User Manual

							Portable Projector
VT770
User’s Manual 
						

							2
Important Information
Safety Cautions
Precautions
Please read this manual carefully before using your NEC VT770 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 THREE
PRONGS CAN BE FULLY INSERTED.
DO NOT OPEN THE CABINET. THERE ARE HIGH-VOLTAGE COMPONENTS INSIDE. ALL SERVICING MUST
BE DONE BY QUALIFIED NEC SERVICE PERSONNEL.
DOC Compliance Notice
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Acoustic Noise Information Ordinance-3. GSGV:
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 disap-
pear.
•Do not put the projector on its side when the lamp is turned on.
Doing so may cause damage to the projector.
Copyright© 2003 by NEC Viewtechnology, Ltd.
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. 
						

							3
Important Information
RF Interference
WARNING
The Federal Communications Commission does not allow any modifications or changes to the unit EXCEPT those
specified by NEC Soluctions (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 radi-
ate 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.
In UK, a BS approved power cable with moulded plug has a Black (five Amps) fuse installed for use with this equip-
ment. 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. 
						

							4
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. The projector is designed to operate on a power supply of 100--240 V 50/60 Hz AC. Ensure that your power
supply fits this requirement before attempting to use your projector.
8. Handle the power cable carefully and avoid excessive bending.
A damaged cord can cause electric shock or fire.
9. If the projector is not to be used for an extended period of time, disconnect the plug from the power outlet.
10. Do not touch the power plug during a thunderstorm. Doing so can cause electrical shock or fire.
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 not 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.
•Do not send the soft carrying case by parcel delivery service or cargo shipment. The projector inside the soft
carrying case could be damaged. (However, it is possible to use it as a carriercase on board.)
•Enable High-Speed Fan mode if you continue to use the projector for consecutive days. (From the menu,
select [Setup] → [Page 4] → [Fan Mode].)
•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 10 seconds after the projector is
turned off). 
						

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Lamp Replacement
•To replace the lamp, follow all instructions provided on page 107.
•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 10 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 
						

							6
Table of Contents
Important Information........................................................................2
1. Introduction......................................................................................8

 Whats in the Box? ........................................................................................................ 9
 Introduction to the Projector ....................................................................................... 10
 Part Names of the Projector ....................................................................................... 12
Carrying the Projector ........................................................................................... 13
Top Features ......................................................................................................... 14
Terminal Panel Features ....................................................................................... 15
 Remote Control Features ........................................................................................... 17
2. Installation and Connections....................................................20

 Setting Up the Screen and the Projector .................................................................... 21
Selecting a Location .............................................................................................. 21
Throw Distance and Screen Size .......................................................................... 22
 Making Connections ................................................................................................... 23
Enabling the computer’s external display .............................................................. 23
Connecting Your PC or Macintosh Computer ........................................................ 23
To connect SCART output (RGB) ......................................................................... 24
Connecting an External Monitor ........................................................................... 25
Connecting Your DVD Player with Component Output .......................................... 26
Connecting Your VCR or Laser Disc Player .......................................................... 27
Connecting the Supplied Power Cable ................................................................. 28
3. Projecting an Image (Basic Operation).................................29

 Turning on the Projector ............................................................................................. 30
 Selecting a Source ..................................................................................................... 32
 Adjusting the Picture Size and Position ...................................................................... 33
 Correcting Keystone Distortion ................................................................................... 35
 Optimizing RGB Picture Automatically ....................................................................... 37
 Turning Up or Down Volume ....................................................................................... 37
 Turning off the Projector ............................................................................................. 38
 After Use .....................................................................................................................38
4. Convenient Features....................................................................39

 Switching Operation Mode between Computer and Projector .................................... 40
 Turning Off the Image and Sound ............................................................................... 40
 Freezing a Picture ....................................................................................................... 40
 Using the Pointer ........................................................................................................ 41
 Enlarging and Moving a Picture .................................................................................. 41
 Getting the On-line Help ............................................................................................. 42
 Using a USB Mouse ................................................................................................... 42
 Using the Remote Mouse Function ............................................................................ 43
	 Correcting Horizontal and Vertical Keystone Distortion (Cornerstone) ....................... 44

 Making Freehand Drawings on a Projected Image (ChalkBoard) .............................. 47 
						

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Table of Contents
 
Storing Images Displayed on the Projector on the PC card or USB Memory (Capture).......... 48
 Preventing the Unauthorized Use of the Projector ..................................................... 49

 Using a USB Memory Device or USB Memory Card Reader ..................................... 54
5. Using the Viewer...........................................................................55

 Making the Most out of the Viewer Function ............................................................... 56
 Operating the Viewer Function from the Projector ...................................................... 58
 Changing Background Logo ....................................................................................... 64
6. Using Dynamic Image Utility 2.0 on the supplied CD-ROM...................65

  End User License Agreement .................................................................................... 66
  Introduction ................................................................................................................ 67
  Operating Environment .............................................................................................. 68
  Equipment Connections and Settings ....................................................................... 69
  Software Installation .................................................................................................. 69
  Starting/Exiting the Software ..................................................................................... 70
  Troubleshooting ......................................................................................................... 72
7. Using On-Screen Menu................................................................73

 Using the Menus ......................................................................................................... 74
 Menu tree ................................................................................................................... 75
 Menu Elements ........................................................................................................... 77
 Menu Descriptions & Functions [Adjust] ..................................................................... 78
 Menu Descriptions & Functions [Image] ..................................................................... 82
 Menu Descriptions & Functions [Setup] ..................................................................... 85
 Menu Descriptions & Functions [Information] ........................................................... 100
 Menu Descriptions & Functions [Reset] ................................................................... 101
	 Entry List .................................................................................................................. 102
8. Maintenance.................................................................................104

  Cleaning the Filters .................................................................................................. 105
  Cleaning the Cabinet ............................................................................................... 105
  Cleaning the Lens .................................................................................................... 106
  Replacing the Lamp and Filters ............................................................................... 107
9. Appendix........................................................................................110

  Troubleshooting ....................................................................................................... 111
  Specifications .......................................................................................................... 114
  Cabinet Dimensions ................................................................................................ 116
  Pin Assignments of D-Sub COMPUTER 1/2 Input Connector ................................ 117
  Compatible Input Signal List .................................................................................... 118
  PC Control Codes and Cable Connection ............................................................... 119
  Using Software Keyboard ........................................................................................ 120
  TravelCare Guide ..................................................................................................... 121 
						

							1
Introduction
○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○

 Whats in the Box? ....................................................... 9
 Introduction to the Projector ...................................... 10
 Part Names of the Projector ...................................... 12
Carrying the Projector .......................................................................................... 13
Top Features ......................................................................................................... 14
Terminal Panel Features ....................................................................................... 15
 Remote Control Features .......................................... 17 
						

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1. Introduction

 Whats in the Box?
Make sure your box contains everything listed. If any pieces are missing, contact your dealer.
Please save the original box and packing materials if you ever need to ship your VT770 Projector.
ZOOM FOCUS 
3D REFORM SOURCESELECT
STATUS LAMP 
PC CARD POWERON/STAND BY AUTO ADJUSTMENUENTERCANCEL
PJSOURCE
FREEZE3D-REFORMASPECTPOINTERVOLUMEMAGNIFY
PICTURE
O
F
F
V
I
D
E
OP
O
W
E
RO
N
VIEWER
PIC-MUTESLIDEHELP
S
E
L
EC
T12S-VIDEOAUTO ADJ.
COMPUTERCOMPONENT
Projector
Lens cap
(24F39571)
Remote control
(7N900451)Batteries (AA 

 2)
Power cable
(US: 7N080212)
(EU: 7N080005)USB cable
(7N520013)RGB signal cable
(7N520012)
Soft carrying case
(24BS7311)
Quick
Connect
Guide
Important
Information
CD-ROM
• User’s manual (7N950421)
• User Supportware (7N950431)
For North America only
Registration card
Limited warranty
For Europe only
Guarantee policy
(7N8P4101)
(7N8P4111) 
						

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1. Introduction
 Introduction to the Projector
This section introduces you to the VT770 Projector and describes key features and controls.
Congratulations on Your Purchase of the VT770 Projector
The VT770 is a sophisticated three panel LCD XGA projector that produces an enhanced display  in less than an 8-
pound (4kg) design.  With the VT770 you will be able to project images up to 300” (measured diagonally).  Enjoy crisp
and sharp large screen display from your DVD player, VCR, satellite hookup, HDTV source, PC, Workstation or
Macintosh computer (desktop or notebook) and images from your digital camera PC Card, compact flash memory or
USB storage device.  The VT770 provides for enhanced security options to help deter projector theft and provides for
full projector control through RS232 support.  With input and output flexibility, long lamp life and a full function remote,
the VT770 lets you enjoy larger than life viewing from a compact and easy to setup and use projector.
Features you’ll enjoy on the VT770:
•Automatic vertical keystone correction for fast and easy application setup
•Built-in Wall Color Correction presets provide for adaptive color correction when projecting onto non-white
screen material.
•3D Reform™ enhanced image technology for increased projector versatility that provides for horizontal, vertical
and diagonal keystone correction (allows for positioning the projector in off center locations in the room and still
get aligned images)
•USB memory or PC card interfaces provide for computerless presentations
•Enhanced smart security settings for password protection, control panel lock, menu lock and PC card protection
key to help prevent unauthorized access, adjustments and theft deterrence
•UXGA compatible, XGA native resolution
•Variable audio out control of external amplified speakers via the projector
•Extensive user adjustable picture and color management settings
•Core technologies – Advanced AccuBlend™, Advanced AutoSense™, VORTEX Technology Plus™ for highest
quality of image display and ease of use
•Display 16:9 or 4:3 aspect ratio information and fill the screen
•HDTV (1080i, 720p) and SDTV (480p, 480i) compatibility
•Digital photo viewer to display larger than life images from your digital cameras PC card, compact flash card or
USB storage device
•Easy set up, use and operation
•Manual zoom and manual focus lens
•Eco-mode™ lamp technology for increased lamp life, reduced energy consumption and overall total cost of
ownership savings
•Wireless remote control operation
•External control via RS232