LT265 Installation Guide

NEC Solutions (America), Inc.
Visual Systems
LT265 Installation Guide
Used with 4:3 and 16:9 screens
v1.1
Contents
Product Description, Lens Specs,
Screen/Aspect Ratio, Notes and Formulas
Diagrams and Distance Charts, 4:3 Screens
16:9 Screens
Cabinet Dimensions, Top, Front and Right
Bottom, Back and Left
Ceiling Mount Dimensions
Input Panel and Control Codes
Pg. 1
Pg. 2
Pg. 3
Pg. 4
Pg. 5
Pg. 6
Pg. 7
Product Description
Type:
Resolution:
Brightness:
1chip DMDTM projector,
1024 x 768 (4:3)
1024 x 576 (16:9)
2500 ANSI lumens
Color Wheel: 4 segment
Dimensions: 10.24”(W) x 4.84”(H) x 12.32”(D)
Weight:
6.4 lbs
Lens Specifications
Throw Ratio: 2.0 - 2.4:1(for 100” diagonal)
Offset Angle: 12.4°-14.9° (for 100” diagonal)
Screen Sizes: 30”-500” diagonal (4:3)
Focal Length: 28.2mm – 33.6mm
F/#:
2.1 – 2.3
Manual Zoom / Focus
Screen/Aspect Ratio
Both 4:3 and 16:9 screens are fully supported with proper aspect ratio control for both type sources using NEC developed
scaling technology. By selecting the screen type in the menus, Aspect Ratio control is reconfigured for that screen type.
•
For a 4:3 screen; select “4:3” in the “Screen” menu for proper aspect ratio control of 4:3 and 16:9 sources.
•
For a 16:9 screen; select “16:9” in the “Screen” menu for proper aspect ratio control of 4:3 and 16:9 sources.
*Factory default “Screen” setting is “4:3”.
Notes
ƒ
ƒ
ƒ
ƒ
For screen sizes not indicated on the projection charts, use the formulas below.
The ceiling must be strong enough to support the projector and the installation must be in accordance with any local
building codes.
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 and 3.
Definitions:
W = Image Width
H = Image Height (Size)
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 = Projection angle
Projection Formulas:
B = 0.5254W - 0.029
C (wide) = 1.9976W – 2.373
C (tele) = 2.4211W – 2.086
D(4:3) = 0.1504W - 0.029
D(16:9) = 0.24415W - 0.029
α (wide) = tan-1 (B/C(wide))
-1
α (tele) = tan (B/C(tele))
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4:3 Screen Formulas:
W = H x 4/3
H = W x 3/4
Screen Diagonal = W x 5/4
16:9 Screen Formulas:
W = H x 16/9
H = W x 9/16
Screen Diagonal = W x 18.35756/16
Vertical Position for a 16:9 screen: The Vertical Position adjustment moves the 16:9
image up and down in the unused portion of the 4:3 panel. This adjustment is only
available when the projector is set for ‘16:9’ in the ‘Screen’ menu. The range of Vertical
Position is dependent on aspect ratio and 3D Reform used. If 3D Reform is not used,
the approximate range of Vertical Position is +/-0.167H (H=Screen Height) when using
a 16:9 screen.
LT265
Page 1 of 7
Diagrams and Distance Charts for 4:3 Screens
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
Mounted
6.5"
C
Throw Distance
5.8"
Lens Ctr
α
D
Screen Top
B
Screen Ctr
Lens offset from
mount center
2.5"
Desktop
C
Throw Distance
Screen Ctr
B
Screen Bottom
D
α
Lens Ctr
Distance chart for popular 4:3 screens
3.3"
Screen Size (4:3)
Diag
W
H
inches inches inches
Note: For screen sizes not indicated on the chart,
use the formulas on page 1.
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B
C
D
wide - tele
inches
inches
α
wide - tele
inches
degrees
30
24
18
12.6
45.6 - 56.0
3.6
15.4 - 12.7
60
48
36
25.2
93.5 - 114.1
7.2
15.1 - 12.4
72
57.6
43.2
30.2
112.7 - 137.4
8.6
15.0 - 12.4
84
67.2
50.4
35.3
131.9 - 160.6
10.1
15.0 - 12.4
90
72
54
37.8
141.5 - 172.2
10.8
15.0 - 12.4
100
80
60
42.0
157.4 - 191.6
12.0
14.9 - 12.4
120
96
72
50.4
189.4 - 230.3
14.4
14.9 - 12.3
150
120
90
63.0
237.3 - 288.4
18.0
14.9 - 12.3
180
144
108
75.6
285.3 - 346.6
21.6
14.8 - 12.3
200
160
120
84.0
317.2 - 385.3
24.0
14.8 - 12.3
250
200
150
105.1
397.1 - 482.1
30.1
14.8 - 12.3
300
240
180
126.1
477.1 - 579.0
36.1
14.8 - 12.3
350
280
210
147.1
557.0 - 675.8
42.1
14.8 - 12.3
400
320
240
168.1
636.9 - 772.7
48.1
14.8 - 12.3
450
360
270
189.1
716.8 - 869.5
54.1
14.8 - 12.3
500
400
300
210.1
796.7 - 966.4
60.1
14.8 - 12.3
LT265
Page 2 of 7
Diagrams and Distance Charts for 16:9 Screens
The following diagram shows 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
Mounted
6.5"
C
Throw Distance
5.8"
Lens Ctr
α
D
Screen Top
B
Screen Ctr
Lens offset from
mount center
2.5"
Desktop
C
Throw Distance
Screen Ctr
B
Screen Bottom
D
α
Lens Ctr
Distance chart for popular 16:9 screens
3.3"
Screen Size (16:9)
Diag
W
H
inches inches inches
Vertical Position for a 16:9 screen
The Vertical Position adjustment moves the 16:9
image up and down in the unused portion of the
4:3 panel. This adjustment is only available when
the projector is set for ‘16:9’ in the ‘Screen’ menu.
The range of Vertical Position is dependent on
aspect ratio and 3D Reform used. If 3D Reform
is not used, the approximate range of Vertical
Position is +/-0.167H (H=Screen Height) when
using a 16:9 screen.
Note: For screen sizes not indicated on the chart,
use the formulas on page 1.
www.necvisualsystems.com
B
C
D
wide - tele
inches
inches
α
wide - tele
inches
degrees
28
24
13.5
12.6
45.6 - 56.0
5.8
15.4 - 12.7
55
48
27
25.2
93.5 - 114.1
11.7
15.1 - 12.4
60
53
29.5
27.6
102.5 - 125.0
12.8
15.0 - 12.4
73
64
36
33.6
125.5 - 152.9
15.6
15.0 - 12.4
82.6
72
40.5
37.8
141.5 - 172.2
17.5
15.0 - 12.4
92
80
45
42.0
157.4 - 191.6
19.5
14.9 - 12.4
100
87
49
45.7
171.4 - 208.5
21.2
14.9 - 12.4
106
92
52
48.3
181.4 - 220.7
22.4
14.9 - 12.3
110
96
54
50.4
189.4 - 230.3
23.4
14.9 - 12.3
119
104
58.5
54.6
205.4 - 249.7
25.4
14.9 - 12.3
123
107
60
56.2
211.4 - 257.0
26.1
14.9 - 12.3
133
116
65
60.9
229.3 - 278.8
28.3
14.9 - 12.3
135
118
66
62.0
233.3 - 283.6
28.8
14.9 - 12.3
159.5
139
78
73.0
275.3 - 334.4
33.9
14.9 - 12.3
161
140
79
73.5
277.3 - 336.9
34.2
14.9 - 12.3
459
400
225
210.1
796.7 - 966.4
97.6
14.8 - 12.3
LT265
Page 3 of 7
Cabinet Dimensions
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
ventilation
12.32
10.83
4.09
3.62
2.24
10.24
3.1
5
ventilation
3.27
4.21
4.72
4.84
distance to A1 & A2
distance to B
Ø
2.76
3.17
2.30
7.36
www.necvisualsystems.com
1.40
LT265
Page 4 of 7
Cabinet Dimensions (continued)
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
main PW SW
AC input
4.21
1.59
0.98
ventilation
2.56
A1
security slot
8.80
7.28
A2
B
3-M4x10 max
for mount
2.30
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LT265
Page 5 of 7
Optional Ceiling Mount Dimensions (Model #: LT65CM)
The following drawings show ceiling mount dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
The mount accommodates a 1.5” NPT treaded pipe extension or two 3/8”-16 threaded rod extensions.
Mount adjustments include roll, pitch and yaw.
Contact Peerless Industries for mount accessories at (800) 865-2112.
2.669
3.044
8.062
0.406
1.5 NPT
7.398
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LT265
Page 6 of 7
Input Panel
AUDIO OUT
PC CARD
R AUDIO IN L
VIDEO IN
S-VIDEO IN
LAN USB
AUDIO IN
PC CONTROL
COMPUTER 1 IN
COMPUTER 2 IN
MONITOR OUT
Control Codes
Function
POWER ON
POWER OFF
INPUT SELECT RGB 1
INPUT SELECT RGB 2
INPUT SELECT VIDEO
INPUT SELECT S-VIDEO
INPUT SELECT VIEWER
PICTURE MUTE ON
PICTURE MUTE OFF
SOUND MUTE ON
SOUND MUTE OFF
ON SCREEN MUTE ON
ON SCREEN MUTE OFF
ASPECT RATIO (4:3 Screen)
ASPECT RATIO (16:9 Screen)
4:3
Letterbox
Widescreen
Crop
4:3 Window
Letterbox
Widescreen
4:3 Fill
AUTO ADJUST
Code Data
02H
00H
02H
01H
02H
03H
02H
03H
02H
03H
02H
03H
02H
03H
02H
10H
02H
11H
02H
12H
02H
13H
02H
14H
02H
15H
03H
10H
03H
10H
03H
10H
03H
10H
03H
10H
03H
10H
03H
10H
03H
10H
02H
0FH
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
02H
02H
02H
02H
02H
00H
00H
00H
00H
00H
00H
05H
05H
05H
05H
05H
05H
05H
05H
02H
02H
03H
01H
01H
01H
01H
01H
12H
13H
14H
15H
16H
17H
18H
18H
18H
18H
18H
18H
18H
18H
05H
01H
02H
06H
0BH
1FH
09H
0AH
0EH
13H
27H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
18H
00H
01H
02H
03H
00H
01H
02H
04H
00H
00H
00H
00H
00H
00H
00H
00H
30H
31H
32H
33H
30H
31H
32H
34H
NOTE: Contact your NEC rep for codes not listed.
Cable Connection
Communication Protocol:
PC Control Connector (DIN-8P)
Baud Rate:
38400 bps
Data Length:
8 bits
Parity:
No Parity
Stop Bit:
One bit
X on/off:
None
Communications: Full duplex
To RxD of PC
8
7
5
4
2
To GND of PC
6
3
1
To TxD of PC
NOTE 1: For LT265GOV, it is recommended to set Standby Mode to ‘Normal’ in the Setup menu for best Power ON response.
NOTE 2: Pins 2, 3, 5, 6 and 8 are used inside the projector..
NOTE 3: For long cable runs it is recommended to set communication speed within projector menus to 9600 bps.
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LT265
Page 7 of 7
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