NEC VT800 Series Manuel utilisateur
NEC Display Solutions of America, Inc.
VT800 Installation Guide
Ceiling Mounted and Desktop Rev 1.3
www.necdisplay.com VT800 Page 1 of 6
Contents
Product Description, Lens Specs, Notes and Formulas Pg 1
Diagrams & Distance Charts Pg 2
Cabinet Dimensions Pg 3
Cabinet Dimensions cont Pg 4
Ceiling Mount Dimensions and Input Panel Pg 5
Control Codes Pg 6
Product Description
Type: 3 panel LCD projector, Brightness: 2700 ANSI Lumens
0.63”p-SiTFTw/MLA Dimensions: 12.2”(W) x 4.9”(H) x 11.4”(D)
Resolution: 1024x768 Weight: 8.16lbs
Fan Noise: 35 dB / 29dB @ 1 meter BTU’s: 1055 BTU/hour
Power Consumption: 310W (max)
Lens Specifications
Throw Ratio: 1.5 – 1.8:1 (for 100” diagonal) Focal Length: 18.89mm – 22.67mm
Offset Angle: 8.4° - 10.0° (for 100” diagonal) F/#: 1.70 - 2.07
Screen Sizes: 21” - 300” diagonal (4:3) Manual Focus/Manual Zoom
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.
•All calculations are based on 4:3 aspect ratio.
•Distances are in inches, for millimeters multiply by 25.4.
•Distances may vary ±5%.
Formulas
The Projection Formulas use the image width for calculation. For proper projection placement, determine the image width
for the desired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the 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 = H x 4/3
H = Image Height H = W x 3/4
B = Vertical distance between lens center and screen center Screen Diagonal = W x 5/4
C = Throw distance
D = Vertical distance between lens center and screen top
(screen bottom for desktop application)
Projection Formulas:
B= 0.258W
C(wide) = 1.4805W – 1.823
C(tele) = 1.7765W – 1.820
D= 0.118W
α(wide) = tan¯¹ (B/C(wide))
α(tele) = tan¯¹ (B/C(tele))
NEC Display Solutions of America, Inc.
VT800 Installation Guide
Ceiling Mounted and Desktop Rev 1.3
www.necdisplay.com VT800 Page 2 of 6
Diagrams and Distance Charts
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mounted
B
C
Lens Ctr
Screen Ctr
Throw Distance
Screen Bottom 2.85"
B
C
Lens Ctr
Screen Ctr
Throw Distance
Screen Top
5.63"
6.01"
Lens Offset From
Mount Pipe
D
D
3.74
Desktop
Distance Chart for popular 4:3 screens
Note: For screen sizes not indicated on the projection
Diagonal Width(W) Height (H)
inches inches inches inches
30 24 18 6 34 - 41 10.2 - 8.5
60 48 36 12 69 - 83 10.1 - 8.4
67 53.6 40.2 14 78 - 93 10.1 - 8.4
72 57.6 43.2 15 83 - 101 10.0 - 8.4
84 67.2 50.4 17 98 - 118 10.0 - 8.4
90 72 54 19 105 - 126 10.0 - 8.4
100 80 60 21 117 - 140 10.0 - 8.4
120 96 72 25 140 - 169 10.0 - 8.3
150 120 90 31 176 - 211 10.0 - 8.3
180 144 108 37 211 - 254 10.0 - 8.3
210 168 126 43 247 - 297 10.0 - 8.3
240 192 144 50 282 - 339 9.9 - 8.3
270 216 162 56 318 - 382 9.9 - 8.3
300 240 180 62 353 - 425 9.9 - 8.3
Screen Size (4:3)
-6
i
nc
h
es
-3
d
egrees
i
nc
h
es
BC
w ide - tele
Dα
w ide - tele
-6
-7
-8
-8
-9
-11
-14
-17
-20
-23
-25
-28
tables, use the formulas on page 1.
NEC Display Solutions of America, Inc.
VT800 Installation Guide
Ceiling Mounted and Desktop Rev 1.3
www.necdisplay.com VT800 Page 3 of 6
Cabinet Dimensions
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
1.98
2.81
12.19
11.38
11.42
2.85
4.92
5.24Lenscenter
Lenscenter
ventilation(exhaust)
NEC Display Solutions of America, Inc.
VT800 Installation Guide
Ceiling Mounted and Desktop Rev 1.3
www.necdisplay.com VT800 Page 4 of 6
Cabinet Dimensions (continued)
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
4 - M3 * 12 max
5.31
8.77
7.90
3.78
0.77
1.00 8.98
5.09
9.07
for Ceiling Mount
1.50
2.09
Lamp
security slot
Power Switch AC input
ventilation (intake) ventilation (intake)
security bar
Speaker (5W)
LAN
USB
S-VIDEO AUDIO IN
VIDEO IN AUDIO IN
L/MONO
L/MONO
R
R
COMPONENT 1 IN
COMPUTER /
AUDIO IN COMPONENT 2 IN
COMPUTER /
AUDIO IN
MONITOR OUT AUDIO OUT PC CONTROL
HDMI IN
NEC Display Solutions of America, Inc.
VT800 Installation Guide
Ceiling Mounted and Desktop Rev 1.3
www.necdisplay.com VT800 Page 5 of 6
Optional Ceiling Mount Dimensions (Model #: NP900CM)
The following drawings show the ceiling mount dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
Input Panel
AUDIO IN AUDIO IN
AUDIO OUT PC CONTROL
MONITOR OUT
LAN
USB
S-VIDEO
L/MONO R
AUDIO IN
L/MONO R
AUDIO IN
VIDEO IN
COMPONENT 2 IN
COMPONENT 1 IN
HDMI IN
COMPUTER / COMPUTER /
NEC Display Solutions of America, Inc.
VT800 Installation Guide
Ceiling Mounted and Desktop Rev 1.3
www.necdisplay.com VT800 Page 6 of 6
PC Control Codes
Function CodeData
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 HDMI 02H 03H 00H 00H 02H 01H 1AH 22H
INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH
INPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H
INPUT SELECT VIEWER 02H 03H 00H 00H 02H 01H 1FH 27H
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
ON SCREEEN MUTE ON 02H 14H 00H 00H 00H 16H
ON SCREEN MUTE OFF 02H 15H 00H 00H 00H 17H
ASPECT RATIO (4:3 Screen)
4:3 03H 10H 00H 00H 05H 18H 00H 00H 00H 00H 30H
LETTERBOX 03H 10H 00H 00H 05H 18H 00H 00H 01H 00H 31H
WIDESCREEN 03H 10H 00H 00H 05H 18H 00H 00H 02H 00H 32H
ZOOM 03H 10H 00H 00H 05H 18H 00H 00H 03H 00H 33H
ASPECT RATIO (16:9 Screen)
4:3 WINDOW 03H 10H 00H 00H 05H 18H 00H 00H 00H 00H 30H
LETTERBOX 03H 10H 00H 00H 05H 18H 00H 00H 01H 00H 31H
WIDESCREEN 03H 10H 00H 00H 05H 18H 00H 00H 02H 00H 32H
4:3 FILL 03H 10H 00H 00H 05H 18H 00H 00H 03H 00H 33H
ASPECT RATIO (RGB)
4:3 03H 10H 00H 00H 05H 18H 00H 00H 00H 00H 30H
16:9 03H 10H 00H 00H 05H 18H 00H 00H 02H 00H 32H
5:4 03H 10H 00H 00H 05H 18H 00H 00H 0BH 00H 3BH
16:9 03H 10H 00H 00H 05H 18H 00H 00H 0CH 00H 3CH
15:9 03H 10H 00H 00H 05H 18H 00H 00H 0DH 00H 3DH
AUTO ADJUST 02H 0FH 00H 00H 02H 05H 00H 18H
Note: Contact your NEC rep for codes not listed.
Cable Connection
Communication Protocol:
Baud Rate: 38400 bps (for cable lengths longer than 20’, it is recommended changing to 9600 bps in setup menu)
Data Length: 8 bits
Parity: No Parity
Stop Bit: One Bit
X on/off: None
Communications: Full duplex
NOTE 1 : Pins 2, 3, 5, and 6 are used inside the projector.
12345
67 8 9
To GND of PC
To RxD of PC
To TxD of PC
To CTS of PC
To RTS of PC
NOTE 2: For long cable runs it is recommended to set communication speed within the projector to 9600 bps.
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4
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