NEC VT650 Guide d'installation et d'utilisation
Visual Systems
VT650 Installation Data
Desktop and Ceiling Mount
C(tele) = 2.2057H – 1.724 Screen Diagonal = H x 5/4
ver1.5
Page 1
Contents
Product Description, Lens Specs, Notes and Formulas Page 1
Projection Distances and Screen Sizes
Ceiling Mount Installation Page 2
DesktopSetup Page 3
Cabinet Dimensions
Top, Front and Right Side Page 4
Bottom, Back and Left Side Page 5
Ceiling Mount Dimensions Page 6
Control Codes Page 7
Product Description
Type: 3 panel, 0.9” p-Si TFT w/MLA LCD projector Dimensions: 9.57”(W) x 4.0”(H) x 11.2”(D)
Native Resolution: 1024 x 768 Weight: 8.8 lbs
Brightness: 1500 ANSI Lumens Manual Zoom/Manual Focus
Lens Specifications
Throw Ratio: 1.8 - 2.2:1(approx.) Focal Length: 33.5mm – 40.2mm
Offset Angle: 9.3 °-9.7 °(wide)/7.8 °-8.1 °(tele) F/#: 1.7 – 2.0
Screen Sizes: 25”-300”
Notes
For screen sizes not indicated on the projection tables, use the formulas below.
If the figures on the tables do not match the results of formulas, use the figures in the table.
The ceiling must be strong enough to support the LCD projector and the installation must be in accordance with any local
building codes.
• All calculations are based on 4:3 aspect ratio.
• Distances are in inches, for millimeters multiply by 25.4.
• Distances may vary ±5%.
Formulas
Units: Inches (for millimeters multiply final number by 25.4)
Definitions:
H= Horizontal Screen Width (4:3)
V= Vertical Screen Height (4:3)
B= Vertical distance between lens center and screen center
C= Throw distance
D= Vertical distance between lens center and screen top (screen bottom for desktop application)
α= Throw Angle
Projection Formulas: Screen Formulas (4:3):
B= 0.3007H H= Screen Diagonal x 4/5
C(wide) = 1.8381H – 1.724 V= Screen Diagonal x 3/5
D= 0.0743H
α(wide) = tan-1 (B/C(wide))
α(tele) = tan-1 (B/C(tele))
Visual Systems
VT650 Installation Data
Desktop and Ceiling Mount ver1.5
Page 2
Projection Distance and Screen Size for Ceiling Mount
The following shows the proper relative position of the projector and screen. Refer to the table for installation data.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mount Installation
D
B
α
Screen Ctr
Screen Top
Lens Ctr
5.5"
Lens Offset from
Mount Pipe
Throw Distance
C
1.4"
5.9"
Distance Chart
BD
Diagonal Width(H) Height (V)
inches inches inches inches inches
25 20 15 6.0 NA - 42.4 1.5 NA - 8.1
40 32 24 9.6 57.1 - 68.9 2.4 9.6 - 8.0
60 48 36 14.4 86.5 - 104.1 3.6 9.5 - 7.9
67 53.6 40.2 16.1 96.8 - 116.5 4.0 9.5 - 7.9
72 57.6 43.2 17.3 104.2 - 125.3 4.3 9.4 - 7.9
84 67.2 50.4 20.2 121.8 - 146.5 5.0 9.4 - 7.9
90 72 54 21.7 130.6 - 157.1 5.3 9.4 - 7.8
100 80 60 24.1 145.3 - 174.7 5.9 9.4 - 7.8
120 96 72 28.9 174.7 - 210.0 7.1 9.4 - 7.8
150 120 90 36.1 218.8 - 263.0 8.9 9.4 - 7.8
180 144 108 43.3 263.0 - 315.9 10.7 9.4 - 7.8
210 168 126 50.5 307.1 - 368.8 12.5 9.3 - 7.8
240 192 144 57.7 351.2 - 421.8 14.3 9.3 - 7.8
270 216 162 65.0 395.3 - NA 16.0 9.3 - NA
300 240 180 72.2 439.4 - NA 17.8 9.3 - NA
Screen Size (4:3)
wide - tele
C
wide - tele
inches
α
degrees
Note: For screen sizes not indicated on the projection tables, use the formulas on page 1.
Visual Systems
VT650 Installation Data
Desktop and Ceiling Mount ver1.5
Page 3
Projection Distance and Screen Size for Desktop
The following diagram shows the relationship between projector position and the screen.
Distances are in inches. For millimeters multiply by 25.4.
Desktop Setup
D
B
α
Screen Ctr
Scrn Bottom
Lens Ctr
Throw Distance
C
2.3"
Projector Feet
Distance Chart
BD
Diagonal Width(H) Height (V)
inches inches inches inches inches
25 20 15 6.0 NA - 42.4 1.5 NA - 8.1
40 32 24 9.6 57.1 - 68.9 2.4 9.6 - 8.0
60 48 36 14.4 86.5 - 104.1 3.6 9.5 - 7.9
67 53.6 40.2 16.1 96.8 - 116.5 4.0 9.5 - 7.9
72 57.6 43.2 17.3 104.2 - 125.3 4.3 9.4 - 7.9
84 67.2 50.4 20.2 121.8 - 146.5 5.0 9.4 - 7.9
90 72 54 21.7 130.6 - 157.1 5.3 9.4 - 7.8
100 80 60 24.1 145.3 - 174.7 5.9 9.4 - 7.8
120 96 72 28.9 174.7 - 210.0 7.1 9.4 - 7.8
150 120 90 36.1 218.8 - 263.0 8.9 9.4 - 7.8
180 144 108 43.3 263.0 - 315.9 10.7 9.4 - 7.8
210 168 126 50.5 307.1 - 368.8 12.5 9.3 - 7.8
240 192 144 57.7 351.2 - 421.8 14.3 9.3 - 7.8
270 216 162 65.0 395.3 - NA 16.0 9.3 - NA
300 240 180 72.2 439.4 - NA 17.8 9.3 - NA
Screen Size (4:3)
wide - tele
C
wide - tele
inches
α
degrees
Note: For screen sizes not indicated on the projection tables, use the formulas on page 1.
Visual Systems
VT650 Installation Data
Desktop and Ceiling Mount
9.571 0.035
1.311
0.551
1.925
4.035
4.587
11.165
0.508
11.673
units: inches
ver1.5
Page 4
Cabinet Dimensions
The following diagrams show the cabinet dimensions for the VT650.
Dimensions are in inches. For millimeters multiply by 25.4.
£
£
£
£
VT650
Visual Systems
VT650 Installation Data
Desktop and Ceiling Mount
0.386
3.201 3.201
0.7878.788
7.244
0.236
3.811
7.480
7.402
units: inches
Mount
M4*10
Mount
M4*10
Mount
M4*10
Mount
M4*10
ver1.5
Page 5
Cabinet Dimensions (continued)
The following diagrams show the cabinet dimensions for the VT650.
Dimensions are in inches. For millimeters multiply by 25.4.
Visual Systems
VT650 Installation Data
Desktop and Ceiling Mount
3.0
TYP
TYP
TYP
1.94
∅
∅
∅
.41 TYP
.34 TYP
5° UP
15° DOWN
68°
34°
3.75
3.75
8.00
8.00
4.00
4.00
22°
units: inches
ver1.5
Page 6
Optional Ceiling Mount Dimensions (Model #: VT40CM)
The following diagrams show ceiling mount dimensions for the VT650.
Dimensions are in inches. For millimeters multiply by 25.4.
Visual Systems
VT650 Installation Data
Desktop and Ceiling Mount ver1.5
Page 7
PC Control Codes
Function Code Data
POWER ON 02H 00H 00H 00H 00H 02H
POWER OFF 02H 01H 00H 00H 00H 03H
INPUT SELECT RGB 02H 03H 00H 00H 02H 01H 01H 09H
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
Cable Connection
Communication Protocol:
Baud Rate: 19200 bps
Data Length: 8 bits
Parity: No Parity
Stop Bit: One bit
X on/off: None
Communications: Full duplex
PC Control Connector (DIN-8P)
To RxD of PC
12
345
678
To TxD of PC
To GND of PC
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.
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