NEC Projector Vt46 User Manual

							E-11
NOTE: Distances may vary +/-5%.
Distance Chart
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and top of screen (bottom of
screen for desktop)
α = Throw angle
Lens Center
Throw Angle ( α)
Throw Distance  (
C )
Screen center
Screen Diagonal
Screen Width
Screen Height Screen Bottom
(D )
(
B )
Throw Distance and Screen Size
The following shows the proper relative positions of the projector and s\
creen. Refer to the table to determine the position of 
installation.
α
W ide – Tele
Screen Size B C
Wide – TeleDiagonal Width Heightdegree
––– - 10.0
11.8 - 9.9
11.7 - 9.8
11.6 - 9.7
11.5 - 9.6
11.4 - 9.6
11.4 - 9.6
11.4 - 9.6
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.3 - 9.5
11.3 - 9.5
11.3 - 9.5
11.3 - 9.5
11.3 - 9.5
11.3 - 9.5 α
W ide – Tele
Screen Size B C
Wide – TeleDiagonal Width Heightdegree
––– - 10.0
11.8 - 9.9
11.7 - 9.8
11.6 - 9.7
11.5 - 9.6
11.4 - 9.6
11.4 - 9.6
11.4 - 9.6
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.3 - 9.5
11.3 - 9.5
11.3 - 9.5
11.3 - 9.5
11.3 - 9.5
11.3 - 9.5
D
D
inch
13
15
18
24
36
43
48
50
54
60
72
90
108
120
126
144
162
180 inch
––– - 29 29 - 35
35 - 42
47 - 57
71 - 86
86 - 103
96 - 115
101 - 121
108 - 129
120 - 144
144 - 173
181 - 217
217 - 260
241 - 290
253 - 304
290 - 348
326 - 391
363 - 400
inch
5
6
7
10
15
17
19
20
22
24
29
36
44
48
51
58
65
73 mm
320
381
457
610
914
1097
1219
1280
1372
1524
1829
2286
2743
3048
3200
3658
4115
4572 mm
––– - 740
740 - 880
890 - 1070
1200 - 1440
1810 - 2180
2180 - 2620
2430 - 2920
2550 - 3060
2740 - 3290
3050 - 3660
3660 - 4400
4590 - 5510
5510 - 6610
6130 - 7350
6440 - 7720
7360 - 8830
8290 - 9940
9210 -11050
mm
130
150
180
250
370
440
490
520
550
610
740
920
1110
1230
1290
1470
1660
1840
mm
533
635
762
1016
1524
1829
2032
2134
2286
2540
3048
3810
4572
5080
5334
6096
6858
7620 mm
427
508
610
813
1219
1463
1626
1707
1829
2032
2438
3048
3658
4064
4267
4877
5486
6096
inch
21
25
30
40
60
72
80
84
90
100
120
150
180
200
210
240
270
300 inch
17
20
24
32
48
58
64
67
72
80
96
120
144
160
168
192
216
240 inch
1
1
2
2
3
4
5
5
5
6
7
9
10
12
12
14
16
17 mm
30
40
40
60
90
110
120
120
130
150
180
220
270
300
310
350
400
440
Reflecting the Image
Using a mirror to reflect your projectors image enables you to enjoy a
much larger image. Contact your NEC dealer if you need a mirror. If
youre using a mirror 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 E-22.)
W
ARNING
* Installing your projector on the ceiling must be done by a quali-
fied 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 fall\
s
to the ground, you can be injured and the projector severely dam-
aged.
• Do not use the projector where temperatures vary greatly. The pro-
jector must be used at temperatures between 32 ˚F (0 ˚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. 
						

							E-12
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 computers screen-saver or power managem ent software.
* If you accidentally hit the POWER (ON/STAND BY) button on the remote control, wait 60 seconds and then press the POWER (ON/STA ND BY) button again to
resume.
PHONE
AUDIO INRGB IN
PHONE
Connecting Your PC or Macintosh Computer
Audio cable (not supplied)
IBM VGA or Compatibles (Notebook type)or Macintosh (Notebook type)
IBM PC or Compatibles (Desktop type)
or Macintosh (Desktop type) RGB signal cable (supplied)
To  mini D-Sub 15-pin connector on the pro-
jector. It is recommended that you use a commercially available distribution amplifierif connecting a signal cable longer than thesupplied one.
NOTE:  For older Macintosh,
use a commercially available pin adapter (not supplied) toconnect to your Macs video
port.
Connecting your PC or Macintosh computer to your projector will en-
able you to project your computers screen image for an impressive pre-
sentation.
To  connect to a PC or Macintosh, simply:
1. Turn off the power to your projector and computer.
2. Use the supplied signal cable to connect your PC or Macintosh 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 youve connected to theprojector.
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.
RGB IN
Video equipment
such as DVD player Projector
ADP-SC1Commercially available
SCART cable Female
1. Turn off the power to the projector and your video equipment.
2. Use the NEC ADP-SC1 SCART adapter and a commercially avail- able SCART cable to connect the RGB input of your projector and aSCART output (RGB) of your video equipment.
3. Turn on the power to the projector and your video equipment.
4. Use the RGB button on the projector cabinet to select the RGB input.5. Press the MENU button on the projector cabinet to display the menu.6. From the menu, select [Advanced] 
→ [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-connector.
NOTE:  The ADP-SC1 SCART adapter is obtainable from your NEC dealer in Eu-rope. Contact your NEC dealer in Europe for more information.
To  RGB IN 
						

							E-13
RGB IN
AUDIO OUTL
AUDIO INLRRComponentYCbCr
Connecting Your DVD PlayerDVD player
You can connect your projector to a DVD player with component output
or Video output. To do so, simply:
1. Turn off the power to your projector and DVD player.
2. If your DVD player has the component video (Y,Cb,Cr) output, use a commercially available component video cable (RCAX3) and the op-tional 15-pin-to-RCA (female)

3 cable to connect your DVD player
to the RGB IN connector on the projector. Component video RCA

3 cable
(not supplied)
For a DVD player without component video (Y,Cb,Cr) output, use common RCA cables (not provided) to connect a composite VIDEOoutput of the DVD player to the Video Input of the projector.
3. Turn on the projector and DVD player.
NOTE:  Refer to your DVD players owners manual for more information aboutyour DVD players video output requirements,
Optional 15-pin-to-RCA
(female)

3 cable (ADP-CV1)
Audio cable (not supplied)
Audio Equipment 
						

							E-14
VIDEO INS-VIDEO IN
AUDIO OUTLR
AUDIO INLR
VIDEO OUT
S-VIDEO OUT
VCR/ Laser disc player
Connecting Your VCR or Laser Disc Player
Audio equipment
S-Video cable (not supplied)
V
ideo cable (not supplied)
Audio 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 tothe Video input on your projector. Use an audio cable (not supplied)to connect the audio from your VCR or laser disc player to your audioequipment (if your VCR or laser disc player has this capability). Becareful to keep your right and left channel connections correct forstereo sound.
3. Turn on the projector and the VCR or laser disc player.
NOTE:  Refer to your VCR or laser disc player owners manual for more informa-tion about your equipments video output requirements.
NOTE: An image may not be displayed correctly when a Video or S-Video sourceis played back in fast-forward or fast-rewind via a scan converter.
Connecting the Supplied Power Cable
Connect the supplied power cable to the projector.
First connect the supplied power cables two-pin plug to
the AC IN of the projector, and then connect the other
plug of the supplied power cable in the wall outlet. 
						

							E-15
PROJECTING AN IMAGE (BASIC OPERATION)
This section describes how to turn on the projector and to project a
picture onto the screen.
Turning on the Projector
NOTE:
• The projector has two power switches: main power switch and POWER (ON/
STAND BY) button.
• When plugging in or unplugging the supplied power cable, make sure that \
the
main power switch is pushed to the off (O) position. Failure to do so \
may
cause damage to the projector.
To  turn on the main power to the projector, press the Main Power switch
to the on position ( I ).
Before you turn on your projector, ensure that the computer or video
source is turned on and that your lens cap is removed.
Only after you press the POWER (ON/STAND BY) button on the pro-
jector cabinet or the remote control for a minimum of 2 seconds will the\
power indicator turn to green and the projector become ready to use.
Note on 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 19 menu languages:\
English, German, French, Italian, Spanish, Swedish, Japanese, Korean,
the Simplified Chinese, Polish, Hungarian, Russian, Greek, Turkish,
Dutch, Norwegian, Finnish, Portuguese and Czech.
To  select a menu language, follow these steps:
1. Use the SELECT G or H button to select one of the 19 languages for
the menu.
After this has been done, you can proceed to the menu operation.
If you want, you can select the menu language later. See Language
on page E-22.
NOTE:  Immediately after turning on the projector, screen flicker may occur. Thisis not a fault. Wait 3 to 5 minutes until the lamp lighting is stabilized.
If one of the following things happens, the projector will not turn on.
*If the internal temperature of the projector is too high, the projector
detects abnormal high temperature. In this condition the projector
will not turn on to protect the internal system. If this happens, wait f\
or
the projectors internal components to cool down.
* When the lamp reaches its end of usable life, the projector will not
turn on. If this happens, replace the lamp.
* If the lamp fails to light, and if the STATUS indicator flashes on and
off in a cycle of six times, wait a full minute and then turn on the
power.
2. Press the ENTER button to execute the selection.
Selecting a Source
Selecting the computer or video source
Using the Remote Control
Press the SOURCE button.
Using the cabinet buttons
NOTE:  If no input signal is available, the projector will display a blue backg\
round(factory preset).
Press any one of the RGB,
VIDEO or S-VIDEO buttons. 
						

							E-16
Adjusting the Picture Size and PositionPlace your projector on a flat level surface and ensure that the project\
or
is square to the screen.
Lift the front edge of the projector to center the image vertically.
*If the projected image does not appear square to the screen then
use the Keystone feature for proper adjustment. See page E-21.
Move the projector left to center the image horizontally on the screen.
Adjust the Tilt Foot
1. Lift the front edge of the projector. Adjustable Tilt Foot Lever Adjustable Tilt Foot
2. Push up the Adjustable Tilt Foot Levers on the right and left sides of the projector to extend the adjustable tilt feet (maximum height).
3. Push down the Adjustable Tilt Foot Levers.
4. Lower the front of the projector to the desired height (max. 40mm/1.6”) and release the Adjustable Tilt Foot Lever to lock the Adjust-able tilt foot. There is approximately 10 degrees of up and down ad-justment for the front of the projector.
Adjustable Tilt Foot Lever
CAUTION
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.
Zoom
Use the ZOOM lever to finely adjust the image size on the screen.
Y ou can use the ZOOM lever to enlarge or reduce an image size.
Focus
Use the FOCUS ring to obtain the best focus.
Correcting the Vertical Keystone Distortion
Use Keystone correction for proper adjustment. See page E-21. 
						

							E-17
Optimizing RGB Picture Automatically
Adjusting the Image Using Auto Adjust
Optimizing RGB image automatically
Press the AUTO ADJ. button on the projector cabinet to optimize an
RGB image automatically.
[Poor picture][Normal picture]
Press the AUTO ADJ. button on the projector cabinet to fine-tune the
computer image or to remove any vertical banding that might appear
and to reduce video noise, dot interference or cross talk (this is evid\
ent
when part of your image appears to be shimmering). This function ad-
justs the clock frequencies that eliminate the horizontal banding in the\
image. This function also adjusts the clock phase to reduce video noise,
dot interference or cross talk. (This is evident when part of your imag\
e
appears to be shimmering.)
This adjustment may be necessary when you connect your computer
for the first time.
NOTE:• Some signals may not be displayed correctly or take time.
• The Auto Adjust function does not work for component and video signal.
• If the Auto Adjust operation cannot optimize the RGB signal, try to adjust Clock
and Phase manually. See page E-24.
Tu rning Up or Down Volume
Sound level from the speaker on the projector can be adjusted.
NOTE:  When the menu appears, you cannot adjust the volume.
increase volume
Turning off the Projector
To  turn off the projector:
First, press the POWER (ON/STAND BY) button on the projector cabi-
net or the remote control. The “Power Off / Are you sure?” message will
appear.
Secondly, press the ENTER button or press the POWER (ON/STAND
BY) button again.
The power indicator will glow orange. After the projector turns off, the
cooling fans keep operating for 60 seconds (Cooling-off time).
Lastly, turn off the Main Power switch. The power indicator will go out.
Last unplug the power cable.
decrease volume
CAUTION
Do not unplug the power cable from the wall outlet or do not turn
off the main power 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 60 seconds after the projector is turned off).
Tu rning off the Image and Sound
Press the MUTE button on the remote control to turn off the image and
sound for a short period of time. Press again to restore the image and
sound. 
						

							E-18
USING ON-SCREEN MENU
Basic Menu Operation
Using the Menus
NOTE: The on-screen menu may not be displayed correctly while interlaced mo-tion video image is projected.
1. Press the MENU button on the remote control or projector cabinet to display the Menu.
2. Press the SELECT GH buttons on the remote control or the projec-
tor cabinet to highlight the menu for the item you want to adjust or set.
3. Press the SELECT 
E button or the ENTER button on the remote
control or the projector cabinet to select a submenu or item.
4. Adjust the level or turn the selected item on or off by using SELECTF or E buttons on the remote control or the projector cabinet.
The on-screen slide bar will show you the amount of increase or decrease.
5. Changes are stored until you adjust it again.
CANCEL ........ Return to the previous screen.
6. Repeat steps 2-5 to adjust an additional item, or press the MENU button to close the menu. 
						

							E-19
List of Menu Items
DefaultFactory Default Current Signal All Data
Clear Filter Usage
Clear Lamp Hour Meter
Information Page1 Source Index, Horizontal Frequency, Vertical Frequency, Sync Polarity
Page2 Signal Type, Video Type, Sync Type, Interlace
Page3 Remaining Lamp Time, Lamp Hour Meter, Filter Usage, Projector Usage
Advanced Security On, Off
Control Panel Key LockEnable, Disable
High Speed Fan ModeOn, Off
Signal Select RGB RGB/Component, RGB, Component, Scart Video Auto, NTSC3.58, NTSC4.43, PAL, PAL-M, PAL-N, PAL60, SECAM
S-Video Auto, NTSC3.58, NTSC4.43, PAL, PAL-M, PAL-N, PAL60, SECAM
Page2 Power Management On, Off Noise reduction Off, Low, High
Auto Adjust On,  Off
Vertical
Horizontal
Clock
Phase
Communication Speed  4800, 9600, 19200
Setup Language Language-1 English, Deutsch, Français, Italiano, Español, Português, Neder\
lands Language-2 Svenska, Norsk, Suomi,  Česky, Magyar, Polski, Türkçe
Language-3
, , , , 
Menu Color Select Color, Monochrome
Menu Display Time Manual, Auto 5 sec, Auto 15sec, Auto 45 sec
Background Blue, Black, Logo
Orientation Desktop Front, Ceiling Rear, Desktop Rear, Ceiling Front
Image Keystone
Keystone Save On, Off
Aspect Ratio Normal, Wide Zoom, Cinema, Native
Cinema Position
PictureBrightness
Contrast
Sharpness
Color
Hue
Picture ManagementPresentation, Video, Movie, Graphic, sRGB
User Base Setting Presentation, Video, Movie, Graphic, sRGB
White Balance Brightness R,G,B  Contrast R,G,B
Gamma Correction Dynamic, Black Detail, Natural
NOTE:  Some menu items are not available depending on the input source. 
						

							E-20
Menu windows or dialog boxes typically have the following elements:
Title .................... Indicates the menu title.
Highlight ............. Indicates the selected menu or item.
Source ................ Indicates the currently selected source.
Solid triangle ...... Indicates further choices are available. A highlighted triangle indicates the item is active.
Ta b..................... Indicates a group of features in a dialog box. Select-
ing on any tab brings its page to the front.
Radio button ....... Use this round button to select an option in a dialog box.
Check mark ........ Indicates the item is selected.
Slide bar ............. Indicates settings or the direction of adjustment.
Key symbol ........ Indicates the Control Panel Key Lock is enabled.
Menu Elements
T itle
Slide bar
Highlight Radio buttonCheck markSolid triangle
Ta bSource
Key symbol