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E–18
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.
• 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.
If your projector is mounted on the ceiling and your image is
upside down, use the “Menu” and “Select” buttons on your pro-
jector cabinet or your remote control to correct the orientation.
(See page E-35.)
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 E-35.)
Ceiling Installation
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and top of screen
α = Throw angle
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and top of screen
α = Throw angle
RGB
INPUT
OUTPUT
AUDIO
IN
INOUT
OUT
PC-CONTROLS-VIDEOVIDEO
Throw Distance
C
B
α
D
Projector feet
Screen Center
Screen Top
Lens Center
2.3” (58.4mm)
Lens Offset 5.5mm
inch mm inch mm inch mm inch mm inch mm - inch mm inch mm degree - degree
25 635 20 508 15 381 6 153 - - - 42 1077 1 38 - - 8.1
30 762 24 610 18 457 7 183 42 1077 - 51 1301 2 45 9.7 - 8.0
40 1016 32 813 24 610 10 244 57 1450 - 69 1749 2 60 9.6 - 8.0
60 1524 48 1219 36 914 14 367 87 2197 - 104 2645 4 91 9.5 - 7.9
67 1702 54 1361 40 1021 16 409 97 2459 - 117 2959 4 101 9.5 - 7.9
72 1829 58 1463 43 1097 17 440 104 2645 - 125 3183 4 109 9.4 - 7.9
80 2032 64 1626 48 1219 19 489 116 2944 - 139 3542 5 121 9.4 - 7.9
84 2134 67 1707 50 1280 20 513 122 3094 - 146 3721 5 127 9.4 - 7.9
90 2286 72 1829 54 1372 22 550 131 3318 - 157 3990 5 136 9.4 - 7.8
100 2540 80 2032 60 1524 24 611 145 3691 - 175 4438 6 151 9.4 - 7.8
120 3048 96 2438 72 1829 29 733 175 4438 - 210 5335 7 181 9.4 - 7.8
150 3810 120 3048 90 2286 36 917 219 5559 - 263 6679 9 226 9.4 - 7.8
180 4572 144 3658 108 2743 43 1100 263 6679 - 316 8024 11 272 9.4 - 7.8
200 5080 160 4064 120 3048 48 1222 292 7426 - 351 8920 12 302 9.3 - 7.8
210 5334 168 4267 126 3200 51 1283 307 7800 - 369 9368 12 317 9.3 - 7.8
240 6096 192 4877 144 3658 58 1467 351 8920 - 422 10713 14 362 9.3 - 7.8
250 6350 200 5080 150 3810 60 1528 366 9294 - 439 11161 15 377 9.3 - 7.8
270 6858 216 5486 162 4115 65 1650 395 10041 - - - 16 407 9.3 - -
300 7620 240 6096 180 4572 72 1833 439 11161 - - - 18 453 9.3 - -
Screen Size
Diagonal Width Height
B
C
wide tele
D
α
wide tele