22
2. Installation and Connections
Lens Center
Throw Angle (
움
)
Throw Distance (C)
Screen center
Screen Diagonal
Screen Width
Screen Height
Screen Bottom
(B)
(D)
WARNING
* Installing your projector on the ceiling must be done
by a qualified technician. Contact your NEC dealer for
more information.
* Do not attempt to install the projector yourself.
• Only use your projector on a solid, level surface. If the
projector falls to the ground, you can be injured and
the projector severely damaged.
• Do not use the projector where temperatures vary
greatly. The projector must be used at temperatures
between 32
°
F (0
°
C) and 95
°
F (35
°
C).
• Do not expose the projector to moisture, dust, or
smoke. This will harm the screen image.
Throw Distance and Screen Size
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the
position of installation.
Distance Chart
B = Vertical distance between lens center and
screen center
C = Throw distance
D = Vertical distance between lens center and
bottom of screen (top of screen for ceiling
application)
α
= Throw angle
NOTE: Distances may vary +/-5%.
α
Wide – Tele
degree
12.1 - 9.9
12.0 - 9.9
11.8 - 9.7
11.7 - 9.6
11.6 - 9.6
11.6 - 9.6
11.6 - 9.6
11.6 - 9.6
11.6 - 9.6
11.5 - 9.6
11.5 - 9.5
11.5 - 9.5
11.5 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
inch
15.0
18.0
24.0
36.0
40.0
43.0
48.0
50.0
54.0
60.0
72.0
90.0
108.0
120.0
132.0
144.0
156.0
168.0
180.0
Screen Size
B
C
Wide – Tele
D
Diagonal
Width
Height
inch
28.0 -
34.0
34.0 -
41.0
46.0 -
56.0
70.0 -
85.0
78.0 -
95.0
84.0 - 102.0
94.0 - 114.0
98.0 - 120.0
106.0 - 128.0
118.0 - 143.0
141.0 - 172.0
177.0 - 215.0
213.0 - 258.0
237.0 - 287.0
261.0 - 316.0
285.0 - 345.0
309.0 - 374.0
333.0 - 403.0
356.0 - 431.0
inch
-2.0
-2.0
-2.0
-4.0
-4.0
-4.0
-5.0
-5.0
-5.0
-6.0
-7.0
-9.0
-11.0
-12.0
-13.0
-14.0
-16.0
-17.0
-18.0
inch
6.0
7.0
10.0
14.0
16.0
17.0
19.0
20.0
22.0
24.0
29.0
36.0
43.0
48.0
53.0
58.0
62.0
67.0
72.0
inch
25
30
40
60
67
72
80
84
90
100
120
150
180
200
220
240
260
280
300
inch
20.0
24.0
32.0
48.0
54.0
58.0
64.0
67.0
72.0
80.0
96.0
120.0
144.0
160.0
176.0
192.0
208.0
224.0
240.0
α
Wide – Tele
degree
12.1 - 9.9
12.0 - 9.9
11.8 - 9.7
11.7 - 9.6
11.6 - 9.6
11.6 - 9.6
11.6 - 9.6
11.6 - 9.6
11.6 - 9.6
11.5 - 9.6
11.5 - 9.5
11.5 - 9.5
11.5 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
11.4 - 9.5
mm
381
457
610
914
1021
1097
1219
1280
1372
1524
1829
2286
2743
3048
3353
3658
3962
4267
4572
Screen Size
B
C
Wide – Tele
D
Diagonal
Width
Height
mm
710 -
870
860 - 1050
1170 - 1420
1770 - 2160
1990 - 2410
2140 - 2600
2380 - 2890
2500 - 3040
2680 - 3260
2990 - 3620
3590 - 4360
4500 - 5460
5410 - 6560
6020 - 7290
6630 - 8030
7230 - 8760
7840 - 9490
8450 - 10230
9050 - 10960
mm
-38
-46
-61
-91
-102
-110
-122
-128
-137
-152
-183
-229
-274
-305
-335
-366
-396
-427
-457
mm
152
183
244
366
408
439
488
512
549
610
732
914
1097
1219
1341
1463
1585
1707
1829
mm
635
762
1016
1524
1702
1829
2032
2134
2286
2540
3048
3810
4572
5080
5588
6096
6604
7112
7620
mm
508
610
813
1219
1361
1463
1626
1707
1829
2032
2438
3048
3658
4064
4470
4877
5283
5690
6096
• Ensure that you have adequate ventilation around your
projector so heat can dissipate. Do not cover the vents
on the side of the projector.
Reflecting the Image
Using a mirror to reflect your projector's image enables
you to enjoy a much larger image. Contact your NEC
dealer if you need a mirror. If you're using a mirror and
your image is inverted, use the MENU and SELECT
buttons on your projector cabinet or your remote control
to correct the orientation. See page
86
.
Содержание VT770 Series
Страница 1: ...Portable Projector VT770 User s Manual ...
