NEC Vt670k Projector User Manual

							
14
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 roughl\
y 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 abo\
ut 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
AC  I N
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)
NOTE: Digital Zoom can cause result in a blurry image because zooming is made electronically. 
						

							
15
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  =V ertical distance between lens center and
screen center
C = Throw distance
D  =V ertical distance between lens center and
bottom of screen (top of screen for ceiling
application)
α  = Throw angle
NOTE: Distances may vary +/-5%.
α
W ide – 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 – Tele DDiagonal 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 – 429 inch
-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
300 inch
17
20
24
32
48
58
64
67
72
80
96
120
144
160
168
192
216
240 α
W ide – 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 – Tele DDiagonal 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 – 10880 mm
-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
7620 mm
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
300 inch
20
24
32
48
58
64
67
72
80
96
120
144
160
168
192
216
240 C
inch 23
28
37
56
68
76
80
85
95
114
143
172
191
201
229
258
287 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 αmm
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
7620 mm
508
610
813
1219
1463
1626
1707
1829
2032
2438
3048
3658
4064
4267
4877
5486
6096 C
mm 580
700
950
1440
1730
1920
2020
2170
2410
2900
3630
4360
4850
5100
5830
6560
7290 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
VT47
VT670/VT570/VT470 
						

							
16
2. Installation and Connections
W ARNING
* 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 projectors image enables
you to enjoy a much larger image. Contact your NEC
dealer if you need a mirror system. If youre using a mir-
ror 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 
44 . 
						

							
17
2. Installation and Connections
 Making Connections
NOTE: When using with a notebook PC, be sure to connect between the proj\
ector 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
management software.
AC IN
AUDIO OUTMONITOR  OUT PC CONTROLAUDIOS-VIDEO IN
COMPUTER 2 IN
VIDEO IN COMPUTER 1 IN
AUDIOL/MONOR
AUDIOL/MONOR
COMPUTER 1 IN
AUDIO 
COMPUTER 2 IN
AUDIO
S-VIDEO INVIDEO IN COMPUTER IN
MONITOR  OUT PC CONTROLL/MONOR
PHONE
PHONE
COMPUTER IN
AUDIO
Connecting Your PC or Macintosh Computer
RGB signal cable (supplied)To
 mini D-Sub 15-pin connector on the projector. It
is recommended that you use a commercially av ailable distribution amplifier if connecting a
signal cable longer than the supplied one.A udio cable
(not supplied)
IBM PC or Compatibles (Desktop type) or Macintosh (Desktop type)
NOTE: For older Macintosh, use a
commercially available pin adapter
(not supplied) to connect to your
Macs video port.
IBM VGA or Compatibles (Notebooktype) or Macintosh (Notebook type)
Connecting your PC or Macintosh computer to your projector will enable you to project your computers 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 signal cable to connect your PC or Macintosh to the projector.
3. Connect the supplied power cable. See page 
22 .
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 youve connected to the projector.
NOTE: • VT670/570/470: The COMPUTER 1 connector supports Plug & Play (DDC2\
).
• VT47: The COMPUTER connector supports Plug & Play (DDC2).
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
e xternal display selections.
VT47VT670/VT570/VT470 
						

							
18
NOTE: The projector is not compatible with video decoded outputs of eith\
er the NEC ISS-6020 and ISS-6010 switchers.
NOTE: An image may not be displayed correctly when a Video or S-Video so\
urce is played back via a commercially available scanconverter.This is because the projector will process a video signal as a computer \
signal at the default setting. In that case, do the fol lowing.
* 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 o\
n the remote control or the AUTO ADJUST button on
the projector cabinet.
2. Installation and Connections
AC IN
AUDIO OUTMONITOR  OUT PC CONTROLAUDIOS-VIDEO IN
COMPUTER 2 IN
VIDEO IN COMPUTER 1 IN
AUDIOL/MONOR
AUDIOL/MONOR
COMPUTER 1 IN
Before connections: An exclusive SCART adapter (ADP-SC1) and a commercially available SCART cable are re-
quired 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 
22 .
4. Turn on the power to the projector and your video equipment.
5. Use the COMPUTER 1 button on the remote control to select the COMPUTER 1 input. Use the COMPUTER button on the remote control to select the COMPUTER input on VT47.
6. Press the MENU button on the remote control 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.
To  connect SCART output (RGB)
Video equipment such as DVD player
Commercially available SCART cable
Female
ADP-SC1
Projector
To  COMPUTER 1 input
(COMPUTER input on VT47) 
						

							
19
2. Installation and Connections
Connecting an External Monitor
MONITOR OUTAUDIO
AC IN
AUDIO OUTMONITOR  OUT PC CONTROLAUDIOS-VIDEO IN
COMPUTER 2 IN
VIDEO IN COMPUTER 1 IN
AUDIOL/MONOR
AUDIOL/MONOR
MONITOR OUT 
Y
ou can connect a separate, external monitor to your projector to simultaneously view on a monitor the RGB analog
image youre projecting.
To   do so:
1. Turn off the power to your projector, monitor and computer.
2. Use a 15-pin cable to connect your monitor to the MONITOR OUT (Mini D-Sub 15 pin) connector on your projector.
3. Connect the supplied power cable. See page 
22 .
4. Turn on the projector, monitor and the computer.
NOTE: Daisy chain connection is not possible.
RGB signal cable (supplied)
RGB signal cable (not supplied) 
						

							
20
AUDIO INLRAUDIO OUT
LR
Component
YCbCr
AC IN
AUDIO OUTMONITOR  OUTPC CONTROLAUDIOS-VIDEO IN
COMPUTER 2 IN
VIDEO IN COMPUTER 1 INAUDIOL/MONOR
AUDIOL/MONOR
COMPUTER 1 INAUDIO 
AUDIO
S-VIDEO INVIDEO IN COMPUTER IN
MONITOR  OUT PC CONTROLL/MONOR
COMPUTER IN
AUDIO
2. Installation and Connections
Y
ou 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 (RCA 
3) and the optional 15-pin-to-RCA (female) 
3 cable to connect your DVD player to the COMPUTER IN
connector on the projector.
F or a DVD player without component video (Y,Cb,Cr) output, use common RCA cables (not provided) to connect a
composite VIDEO output of the DVD player to the Video Input of the projector.
3. Connect the supplied power cable. See page 
22 .
4. Turn on the projector and DVD player. A component signal will be automatically displayed. If not, from the menu, select [Advanced]  → [Signal Select]  →
[Computer], and then place a check mark in the Component radio button.
NOTE: Refer to your DVD players owners manual for more information abo\
ut your DVD players video output requirements.
Connecting Your DVD Player with Component Output
D VD player A
udio Equipment
Audio cable (not supplied)
Optional 15p - to - RCA (female)
3
cable (ADP-CV1)
Component video RCA
3
cable (not supplied)
VT47VT670/VT570/VT470 
						

							
21
2. Installation and Connections
AUDIO INLRAUDIO OUTLRVIDEO OUTS-VIDEO
VIDEO
AC IN
AUDIO OUTMONITOR  OUT PC CONTROLAUDIOS-VIDEO IN
COMPUTER 2 IN
VIDEO IN COMPUTER 1 IN
AUDIOL/MONOR
AUDIOL/MONOR
S-VIDEO IN
VIDEO IN
AUDIO
AUDIO
Connecting Your VCR or Laser Disc Player
S-Video cable (not supplied) Video cable (not supplied)
VCR/ Laser disc player
Audio equipment
A udio cable (not supplied)
Use an RCA or S-Video cable (not provided) to connect the video and use RCA cables (not provided) to connect
the audio from 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 an RCA cable to the video output (or one end of an S-Video cable to the S-Video output connector) on the back of your VCR or laser disc player, connect the other end to the appropriate video input
on your projector. Connect one end of a pair RCA cables (not supplied) to the audio output on the back of your
VCR or laser disc player, connect the other end to your audio equipment or to the appropriate audio input on
the projector.
Be careful to keep the right and left channel connections correct for stereo sound.
NOTE: The AUDIO IN L/MONO and R jacks (RCA) are shared between the Vid\
eo and S-Video inputs on VT47.
3. Connect the supplied power cable. See page  22 .
4. Turn on the projector and the VCR or laser disc player.
NOTE: Refer to your VCR or laser disc player owners manual for more inf\
ormation about your equipments video output
requirements.
NOTE: An image may not be displayed correctly when a Video or S-Video so\
urce is played back in fast-forward or fast-rewind via
a scan converter. 
						

							
22
2. Installation and Connections
AC IN
ZOOMF O
CU
S
SELECTL
A M
P
S TA
TU S
P O W ER
VID
EO
S-V IDEOC
OM
PU TE
R-1 C
O M PU TE R
-2
O N/S T
A N
D B Y
AUT O
ADJ.
AUDIO OUT
S-VIDEO INCOMPUTER 1 IN
COMPUTER  OUT PC CONTROL
AUDIO AUDIO
COMPUTER 2 IN
VIDEO IN AUDIO
L/MO
NORAUDIOL/MONOR
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.
Make sure that the prongs are fully inserted into
both the AC IN and the wall outlet.
To
 wall outlet 
←
CAUTION:
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. 
						

							
23
3. 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: a main power switch and a POWER (ON/STAND BY) button (POWER ON and OFF on the
remote control of VT670/VT470 and POWER on the remote control of VT570/V\
T47).
• When plugging in or unplugging the supplied power cable, make sure that \
the main power switch is pushed to the off (
)
position. Failure to do so may cause damage to the projector.
AC 
IN
Z O O
M
FO C
USSTATUSLAMP POWER
1. To turn on the main power to the projector, press the
Main Power switch to the on position ( I ).
• The POWER indicator will light orange.
See the Power Indicator section on page 
56  for more
details.
2. Press the POWER (ON/STAND BY) button on the projector cabinet or the POWER ON button (thePOWER button on VT570/VT47) on the remote
control for a minimum of 2 seconds. The POWERindicator will turn to green and the projector willbecome ready to use.
After you turn on your projector, ensure that the
computer or video source is turned on and that your
lens cap is removed.
NOTE: When no signal is available, a blue, black or logo screen is
displayed.When the projector displays a blue or a black screen (not logo),
the Eco mode will be automatically selected in Lamp Mode.
NOTE: If you turn on the projector immediately after the lamp isturned off or when the temperature is high, the fans runs without
displaying an image for some time and then the projector will
display the image.
LAMP
STATUS
POWER VIDEO S-VIDEO
ON/STAND BY
SELECT
POWER
SOURCE PIC-MUTE ASPECT
MENU UP
MAGNIFY PAGE OFF
POWER ON
PIC-MUTEDOWN
VT670/VT470VT570/VT47
POWERPOWER POWER
STATUS
LAMP STATUSLAMP
STATUSLAMP
Standby Blinking Power On
Steady orange light Blinking  green lightSteady green
light
See page  56  for more details.