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12
2. Installation and Connections
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 41˚F (5˚C) and 104˚F (40˚C) (Eco mode
selected automatically at 95˚F to 104˚F/35˚C to 40˚C).
• Do not expose the projector to moisture, dust, or
smoke. This will harm the screen image.
• Ensure that you have adequate ventilation around your
projector so heat can dissipate. Do not cover the vents
on the side or the front of the projector.
Reflecting the Image
Using a mirror to reflect your projector’s image enables
you to enjoy a much larger image when a smaller space
is required. Contact your NEC dealer if you need a mirror
system. If you're using a mirror system and your image
is inverted, use the MENU and SELECT buttons on your
projector cabinet or your remote control to correct the
orientation. (→ page 45)
VT49
Screen Size
α
Diagonal
inch
25
30
40
60
72
80
84
90
100
120
150
180
200
210
240
270
300
mm
635
762
1016
1524
1829
2032
2134
2286
2540
3048
3810
4572
5080
5334
6096
6858
7620
inch
20
24
32
48
58
64
67
72
80
96
120
144
160
168
192
216
240
mm
508
610
813
1219
1463
1626
1707
1829
2032
2438
3048
3658
4064
4267
4877
5486
6096
inch
15
18
24
36
43
48
50
54
60
72
90
108
120
126
144
162
180
mm
381
457
610
914
1097
1219
1280
1372
1524
1829
2286
2743
3048
3200
3658
4115
4572
DCB
inch
5
6
9
13
15
17
18
19
21
26
32
38
43
45
51
57
64
mm
140
160
220
320
390
430
450
490
540
650
810
970
1080
1140
1300
1460
1620
inch
35
42
57
86
103
115
121
129
144
173
217
260
289
304
347
391
434
mm
890
1070
1440
2180
2620
2920
3060
3290
3650
4390
5500
6610
7340
7710
8820
9930
11030
inch
-2
-3
-3
-5
-6
-7
-7
-8
-9
-10
-13
-16
-17
-18
-21
-24
-26
mm
-60
-70
-90
-130
-160
-180
-190
-200
-220
-270
-330
-400
-440
-460
-530
-600
-660
degree
8.7
8.6
8.5
8.5
8.4
8.4
8.4
8.4
8.4
8.4
8.4
8.4
8.4
8.4
8.4
8.4
8.4
Width Height