NEC Vt670 Projector User Manual

							4
1. Introduction
 Part Names of the Projector
ZOOMF
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C
US
SELECTL
A
M
P
S
T
A
T
U
S
P
O
W
E
RV
I
D
E
OS
-
V
I
D
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OC
O
M
P
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M
P
U
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-
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A
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D
 B
Y
A
U
T
O
A
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J
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AC IN
ZOOMFOCU
S
SELECTLAMP
STATUS
POWER
VIDEO
S-VIDEO
COMPUTER-1
COMPUTER-2
ON/STAND BY
AU
TO
ADJ.
AUDIO OUT S-VIDEO INCOMPUTER 1 IN
COMPUTER  OUTPC CONTROL AUDIOAUDIO
COMPUTER 2 IN
VIDEO INAUDIO
L/MONORAUDIOL/MONOR
Zoom Lever (VT676/VT670/VT575/VT470)
Digital Zoom Button (VT47)
(See page 25)Controls
(See page 6)
Lens
Lens Cap
Built-in Security Slot (  )*
Focus Ring
(See page 25)
Adjustable Tilt Foot Lever
(See page 24)
Adjustable Tilt  Foot
(See page 24)
Remote sensor
(See page 10)Ventilation (inlet) / Filter Cover
(See page 48)
Ventilation (inlet)
Front/Top
AC Input
Connect the supplied power cables 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)Remote sensor
(See page 10)
Terminal Panel
(See page 7) Monaural Speaker
(1W)
Rear
*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.
Ventilation (outlet)
Heated air is exhausted from here.
F
O
CUS
ZOOM 
						

							5
1. Introduction
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.
Bottom
Adjustable Tilt  Foot
(See page 24)
Adjustable Tilt Foot Lever
(See page 24) Adjustable Tilt Foot Lever
(See page 24)Lamp Cover
(See page 50)
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.
Carrying handleScrew
Flathead screwdriver 
						

							6
1. Introduction
Top Features
LAMP
STATUS
POWER VIDEO
AUTO
ADJ.
S-VIDEO COMPUTER-1 COMPUTER-2
AUTO
ADJ.
COMPUTER
ON/STAND BY
SELECT
12 13
10 2 3 4 11
15677
89
8
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, its 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 indi-
cates 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 cam-
era.7. COMPUTER1 and 2 Buttons (one COMPUTER
port on VT47) Button
Press this button to select an RGB source from com-
puter 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 opti-
mal 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.
VT47VT676/VT670/VT575/VT470 
						

							7
1. Introduction
AUDIO OUT AUDIO
S-VIDEO INCOMPUTER 2 IN
VIDEO INCOMPUTER 1 IN
MONITOR  OUTPC CONTROLL/MONOR
AUDIOL/MONOR
AUDIO
AUDIO
S-VIDEO INVIDEO INCOMPUTER IN
MONITOR  OUTPC CONTROLL/MONORAUDIO
41
325
41
325
Terminal Panel Features
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 equip-
ment such as IBM compatible or Macintosh comput-
ers. Use the supplied RGB cable to connect to your
computer. This also serves as a component input con-
nector 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 COM-
PUTER 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 cur-
rently selected source (COMPUTER, VIDEO or S-
VIDEO). Output sound level can be adjusted in accor-
dance 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 sepa-
rate.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 docu-
ment 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 S-
VIDEO 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 com-
munication protocol. If you are writing your own pro-
gram, typical PC control codes are on page 62.
VT47
VT676/VT670/VT575/VT470 
						

							8
1. Introduction
 Part Names of the Remote Control
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.
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.
VOLUMES-VIDEOVIDEO L-CLICK
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
MOUSER-CLICK
AUTO ADJ. COMPUTER
ASPECT HELP
FREEZE PICTURE
1
2
1
3
4
76
9
2
8
10
11
13
14
12
20
21
19
16
15
18
5
17
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. Yo u
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 adjust-
ments.
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 cabi-
net. 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.
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. 
						

							9
15. COMPUTER 1/2 Button
Press this button to select COMPUTER 1 or 2 (or Com-
ponent) input. (One COMPUTER port on VT47)
16. AUTO ADJ. Button
Use this button to adjust an RGB source for an opti-
mal 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.
VOLUMES-VIDEOVIDEO L-CLICK
ENTEREXIT MENUUP MAGNIFY PAGEOFF
POWERON
PIC-MUTE
DOWN
MOUSER-CLICK
AUTO ADJ. COMPUTER
ASPECT HELP
FREEZE PICTURE
1
2
1
3
4
76
9
2
8
10
11
13
14
12
20
21
19
16
15
18
5
17
1. Introduction
20. HELP Button
Provides the information on the current signal and pro-
jector settings. See page 46.
21. FREEZE Button
This button will freeze a picture. Press again to re-
sume motion. 
						

							10
1. Introduction
30°
30°
30° 30°
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 Battery Installation
1Press firmly and slide the
battery cover off.2Remove both old batteries and
install new ones (AAA). Ensure
that you have the batteries po-
larity (+/–) aligned correctly.3Slip the cover back over the bat-
teries until it snaps into place. Do
not mix different types of batter-
ies or new and old batteries.
Remote sensor on projector cabinetRemote control
7m/22 feet 7m/22 feet
•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. 
						

							11
This section describes how to set up your projector and how to connect video and audio sources.
2. Installation and Connections

 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.Your projector is simple to set up and use.
But before you get started, you must first:
zSet up a screen and the projector.
xConnect your computer or video equip-
ment to the projector. See pages 15 to
19.
cConnect the supplied power cable. See
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
lens cap.To the wall outlet.
300
240

200180
150
120
100
60
403021
80
Distance (Unit: m/inch)
Screen Size (Unit: cm/inch)
Screen Size
Lens center
609.6(W)
457.2(H) / 240(W)
180(H)
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)
1.0/380.7/
29
2.0/782.6/1043.3/1304.0/1575.0/1966.0/2366.6/2628.0/314
10.0/393
AC IN1.3/
51
32
1 
						

							12
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.
25
300
240
200180
150
120100
6040
80
Distance (Unit: m/inch)
Lens center
0.6/
23
1.0/37
1.4/561.9/762.4/952.9/1143.6/1434.4/1724.9/1915.8/2297.3/287
Screen Size (Unit: cm/inch)
Screen Size
609.6(W)
457.2(H) / 240(W)
180(H)
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)
50.8(W)
38.1(H) / 20(W)
15(H)
AC I
N
NOTE: Digital Zoom can cause result in a blurry image because zooming is made electronically. 
						

							13
2. Installation and Connections
Lens Center
Throw Angle (
)
Throw Distance (C) Screen center Screen Diagonal Screen Width
Screen Height
Screen Bottom
(B)
(D)
A
C
 
I
N
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
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%.
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
13
15
18
24
36
43
48
50
54
60
72
90
108
120
126
144
162
180 Screen Size B C
Wide – TeleDDiagonal Width Heightinch
–– – 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 – 429inch
-1
-2
-2
-2
-4
-4
-5
-5
-6
-6
-7
-9
-11
-12
-13
-15
-17
-18 inch
5
6
7
10
14
17
19
20
22
24
29
36
43
48
50
57
65
72 inch
21
25
30
40
60
72
80
84
90
100
120
150
180
200
210
240
270
300inch
17
20
24
32
48
58
64
67
72
80
96
120
144
160
168
192
216
240α
Wide – Teledegree
–– – 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 mm
320
381
457
610
914
1097
1219
1280
1372
1524
1829
2286
2743
3048
3200
3658
4115
4572 Screen Size B C
Wide – TeleDDiagonal Width Heightmm
––– – 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 – 10880mm
-30
-40
-50
-60
-90
-110
-120
-130
-140
-160
-190
-230
-280
-310
-330
-370
-420
-470 mm
130
150
180
240
360
440
490
510
550
610
730
910
1090
1210
1270
1460
1640
1820 mm
533
635
762
1016
1524
1829
2032
2134
2286
2540
3048
3810
4572
5080
5334
6096
6858
7620mm
427
508
610
813
1219
1463
1626
1707
1829
2032
2438
3048
3658
4064
4267
4877
5486
6096
α
inch
15
18
24
36
43
48
50
54
60
72
90
108
120
126
144
162
180 Screen Size
BDDiagonal Width Heightinch
-2
-2
-2
-4
-4
-5
-5
-6
-6
-7
-9
-11
-12
-13
-15
-17
-18 inch
6
7
10
14
17
19
20
22
24
29
36
43
48
50
57
65
72 inch
25
30
40
60
72
80
84
90
100
120
150
180
200
210
240
270
300inch
20
24
32
48
58
64
67
72
80
96
120
144
160
168
192
216
240C
inch
23
28
37
56
68
76
80
85
95
114
143
172
191
201
229
258
287degree
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
14.0αmm
381
457
610
914
1097
1219
1280
1372
1524
1829
2286
2743
3048
3200
3658
4115
4572 Screen Size
BDDiagonal Width Heightmm
-40
-50
-60
-90
-110
-120
-130
-140
-160
-190
-230
-280
-310
-330
-370
-420
-470 mm
150
180
240
360
440
490
510
550
610
730
910
1090
1210
1270
1460
1640
1820 mm
635
762
1016
1524
1829
2032
2134
2286
2540
3048
3810
4572
5080
5334
6096
6858
7620mm
508
610
813
1219
1463
1626
1707
1829
2032
2438
3048
3658
4064
4267
4877
5486
6096C
mm
580
700
950
1440
1730
1920
2020
2170
2410
2900
3630
4360
4850
5100
5830
6560
7290degree
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
VT47
VT676/VT670/VT575/VT470