NEC VT570 Series Manuel utilisateur
NEC Solutions (America), Inc.
VisualSystems
VT470/570/670 Installation Guide
Ceiling Mounted and Desktop v1.2
Contents
www.necvisualsystems.com VT470/570/670 Page 1 of 6
Product Description, Lens Specs, Notes and Formulas Pg. 1
Diagrams and Distance Charts Pg. 2
Cabinet Dimensions Pg. 3 - 4
Ceiling Mount Dimensions Pg. 5
Input Panel and Control Codes Pg. 6
ProductDescription
Type: 3 panel LCD projector, Brightness: VT470: 2000 ANSI lumens
0.7” p-Si TFT (VT670 w/MLA) VT570: 1300 ANSI lumens
Resolution: VT470: 800x600 VT670: 2100 ANSI lumens
VT570/670: 1024x768 Dimensions: 11.57”(W) x 4.43”(H) x 11.10”(D)
Weight: 6.4lbs
LensSpecifications
Throw Ratio: 1.5 - 1.8:1(for 100” diagonal) Focal Length: 21.6mm – 25.9mm
Offset Angle: 9.6°-11.5° (for 100” diagonal) F/#: 1.7 – 2.0
Screen Sizes: 21”-300” diagonal (4:3) Manual Zoom / Manual Focus
Notes
For screen sizes not indicated on the projection charts, use the formulas below.
If a value in a chart does not match the results of the formulas, use the values in the chart.
The ceiling must be strong enough to support the projector and the installation must be in accordance with any local
building codes.
All formulas are based on a 4:3 aspect ratio and screen.
Distances are in inches, for millimeters multiply by 25.4.
Distances may vary ±5%.
Formulas
The Projection Formulas use the image width for calculation. Image width is the same for all aspect ratios, only vertical image size
varies. For proper projector placement, determine the image width for a desired screen size. Use the Screen Formulas below to
calculate all screen dimensions. Plug in the image width for “W” in the Projection Formulas.
Refer to the diagrams and charts for popular screen sizes on page 2.
Definitions: 4:3 Screen Formulas:
W= Image Width W=Hx4/3
H= Image Height (Size) H=Wx3/4
B= Vertical distance between lens center and screen center Screen Diagonal = W x 5/4
C=Throwdistance
D= Vertical distance between lens center and screen top (screen
bottomfordesktop)
α=Projectionangle
Projection Formulas:
B= 0.2986W
C(wide) = 1.4813W – 1.425
C(tele) = 1.7913W – 1.406
D= 0.0764W
α(wide) = tan-1 (B/C(wide))
α(tele) = tan-1 (B/C(tele))
Diagrams and Distance Charts
The following diagrams show the relationship between projector position and the screen. Refer to the chart below for data.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling
Screen Top
α
Screen Ctr
Lens Offset from
Mount Pipe
Lens Ctr
Throw Distance
5.5"
C
6.1"
2.7"
D
B
Mounted
Throw Distance
Screen Bottom
Screen Ctr
2.5"
α
Lens Ctr
C
D
B
Desktop
Distance chart for popular 4:3 screens
BD
Diag W H wide
-
tele wide
-
tele
inches inches inches inches inches
21 16.8 12.6 5.0 NA
-
28.7 1.3 NA
-
9.9
60 48 36 14.3 69.7
-
84.6 3.7 11.6
-
9.6
72 57.6 43.2 17.2 83.9
-
101.8 4.4 11.6
-
9.6
84 67.2 50.4 20.1 98.1
-
119.0 5.1 11.6
-
9.6
90 72 54 21.5 105.2
-
127.6 5.5 11.5
-
9.6
100 80 60 23.9 117.1
-
141.9 6.1 11.5
-
9.6
120 96 72 28.7 140.8
-
170.6 7.3 11.5
-
9.5
150 120 90 35.8 176.3
-
213.6 9.2 11.5
-
9.5
180 144 108 43.0 211.9
-
256.5 11.0 11.5
-
9.5
200 160 120 47.8 235.6
-
285.2 12.2 11.5
-
9.5
250 200 150 59.7 294.8
-
356.9 15.3 11.5
-
9.5
300 240 180 71.7 354.1
-
428.5 18.3 11.4
-
9.5
Screen Size (4:3) C
inches
α
degrees
Note: For screen sizes not indicated on the chart,
use the formulas on page 1.
Note: “NA” means it is outside lens range for that
part of the zoom. Refer to “Screen Sizes” in Lens
Specifications on Page 1.
www.necvisualsystems.com VT470/570/670 Page 2 of 6
Cabinet Dimensions
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
4.43
4.19
11.57
10.24
2.30
(boss)
2.54
(foot)
4.15
11.10
Exhaust
2.81
www.necvisualsystems.com VT470/570/670 Page 3 of 6
Cabinet Dimensions (continued)
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
3-M4x8 MAX For Ceiling Mount
For handle (Except VT570)
3.60
7.28
6.852.61
1.83
Lamp
Intake
www.necvisualsystems.com VT470/570/670 Page 4 of 6
Optional Ceiling Mount Dimensions (Model #: VT70CM)
The following drawings show ceiling mount dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
7.62
2.67
3.24
7.62
www.necvisualsystems.com VT470/570/670 Page 5 of 6
Input Panel
AUDIO
AUDIO
S-VIDEO IN L/MONO R AUDIO OUT MONITOR OUT PC CONTROL
VIDEO IN L/MONO R AUDIO COMPUTER 1 IN AUDIO COMPUTER 2 IN
Control Codes
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
NOTE:Contact your NEC rep for codes not listed.
Cable Connection
Communication Protocol: PC Control Connector (D-Sub 9P)
Baud Rate: 19200 bps
Data Length: 8 bits
To RxD of PC
12
345
678
To TxD of PCTo GND of PC
Parity: No Parity
Stop Bit: One bit
X on/off: None
Communications: Full duplex
NOTE 1: Pins 2, 3, 5, 6 and 8 are used inside the projector..
NOTE 2: For long cable runs it is recommended to set communication speed within projector menus to 9600 bps.
www.necvisualsystems.com VT470/570/670 Page 6 of 6
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