NEC NP905 User manual

NP905
NEC
Brand
NEC
Model
NP905
Category
Data projectors
Type
User manual

NEC NP905 is a versatile projector designed for both ceiling-mounted and desktop applications. With its 3-panel LCD technology and 2000 ANSI lumens, it delivers bright and crisp images, making it suitable for presentations, movies, and gaming.

The NP905 offers a range of connectivity options, including HDMI, VGA, and USB, allowing you to connect various devices such as laptops, DVD players, and gaming consoles. It also features a built-in speaker for audio output, eliminating the need for external speakers in smaller setups.

The projector's manual zoom and focus adjustments provide flexibility in image positioning and size, making it easy to adapt to different room sizes and screen configurations. Additionally, the NP905 comes with a variety of control codes, allowing for integration with external control systems, such as home automation or presentation software.

NEC NP905 is a versatile projector designed for both ceiling-mounted and desktop applications. With its 3-panel LCD technology and 2000 ANSI lumens, it delivers bright and crisp images, making it suitable for presentations, movies, and gaming.

The NP905 offers a range of connectivity options, including HDMI, VGA, and USB, allowing you to connect various devices such as laptops, DVD players, and gaming consoles. It also features a built-in speaker for audio output, eliminating the need for external speakers in smaller setups.

The projector's manual zoom and focus adjustments provide flexibility in image positioning and size, making it easy to adapt to different room sizes and screen configurations. Additionally, the NP905 comes with a variety of control codes, allowing for integration with external control systems, such as home automation or presentation software.

NEC Display Solutions of America, Inc.
NP905 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
www.necdisplay.com NP905 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: 2000 ANSI Lumens
0.63” p-Si TFT w/MLA Dimensions: 12.2”(W) x 4.9”(H) x 11.4”(D)
Resolution: 1024 x 768 Weight: 8.16 lbs
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 (size) 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.
NP905 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
www.necdisplay.com NP905 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"
C
Throw Distance
Screen Top
5.63"
6.01"
Lens Offset From
Mount Pipe
D
3.74
B
Lens Ctr
Screen Ctr
D
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
-20
-23
-25
-28
-9
-11
-14
-17
-6
-7
-8
-8
i
nc
h
es
D
α
w ide - tele
d
egrees
Screen Size (4:3)
-6
i
nc
h
es
-3
B
C
w ide - tele
tables, use the formulas on page 1.
NEC Display Solutions of America, Inc.
NP905 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
www.necdisplay.com NP905 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
1
1
.
3
8
1
1
.
4
2
2.85
4.92
5
.
2
4
L
e
n
s
c
e
n
t
e
r
L
e
n
s
c
e
n
t
e
r
v
e
n
t
il
a
t
io
n
(
e
x
h
a
u
s
t
)
NEC Display Solutions of America, Inc.
NP905 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
www.necdisplay.com NP905 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)
AUDIO IN AUDIO IN
AUDIO OUT
PC CONTROL
MONITOR OUT
LAN
USB
S-VIDEO
L/MONO R
AUDIO IN
L/MONO R
AUDIO INVIDEO IN
COMPONENT 2 IN
COMPONENT 1 IN
HDMI IN
COMPUTER / COMPUTER /
NEC Display Solutions of America, Inc.
NP905 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
www.necdisplay.com NP905 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.
NP905 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
www.necdisplay.com NP905 Page 6 of 6
PC 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 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.
12
34
5
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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NEC NP905 User manual

NP905
NEC
Brand
NEC
Model
NP905
Category
Data projectors
Type
User manual

NEC NP905 is a versatile projector designed for both ceiling-mounted and desktop applications. With its 3-panel LCD technology and 2000 ANSI lumens, it delivers bright and crisp images, making it suitable for presentations, movies, and gaming.

The NP905 offers a range of connectivity options, including HDMI, VGA, and USB, allowing you to connect various devices such as laptops, DVD players, and gaming consoles. It also features a built-in speaker for audio output, eliminating the need for external speakers in smaller setups.

The projector's manual zoom and focus adjustments provide flexibility in image positioning and size, making it easy to adapt to different room sizes and screen configurations. Additionally, the NP905 comes with a variety of control codes, allowing for integration with external control systems, such as home automation or presentation software.

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