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PC-CONTROL S-VIDEOVIDEO
WARNING
• Installing your projector on the ceiling must be done by a quali-
fied technician. Contact your NEC dealer for more informa-
tion.
* Do not attempt to install the projector yourself.
• Only use your projector on a solid, level surface. If the projec-
tor 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 pro-
jector 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 projector cabi-
net or ▲▼ button on your remote control to correct the orientation.
(See page E-31.)
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 ▲▼ buttons on
your remote control to correct the orientation. (See page E-31.)
Ceiling Installation
A: Distance between the lens and the screen center
B: Vertical distance between the top of the supplied ceiling mount and the screen center
C: Horizontal throw distance between screen surface and the lens
F: Vertical distance between projector base and top of image
Formulas(mm)
H” = Horizontal Screen Width (inch)
A = C/cosα
B = 94 + 5.5 × M
C (wide) = 36.8712 × (diagonal screen size/ 0.92205) – 43.5689
C (tele) = C(wide) × 1.2
F = 1.4516 × M – 94
M = 1.25H” / 22.86
Formulas(inch)
H” = Horizontal Screen Width
A = C/cosα
B = (94+5.5 × M) / 25.4
C
(wide) = (36.8712 × (diagonal screen size/0.92205) – 43.5689) / 25.4
C (tele) = C (wide) × 1.2
F = 1.4516 × M – 94/25.4
M = 1.25H / 0.9
α degree 9.01 8.93 8.85 8.82 8.81 8.79 8.78 8.77 8.75 8.74 8.74 8.73 8.72 8.72
β (=sinα) 0.16 0.16 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15
γ (=cosα) 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Screen Size H-Width inch 24 32 48 56 64 72 80 96 120 144 160 192 216 240
4:3 Diagonal inch 30 40 60 70 80 90 100 120 150 180 200 240 270 300
A mm 1171 1471 2242 2628 3013 3399 3785 4556 5713 6870 7641 9184 10341 11498
inch 46 58 88 103 119 134 149 179 225 270 301 362 407 453
C mm 1156 1556 2356 2756 3155 3555 3955 4755 5955 7154 7954 9554 10753 11953
inch 46 61 93 108 124 140 156 187 234 282 313 376 423 471
B mm 277 338 461 522 583 644 705 827 1011 1194 1316 1561 1744 1927
inch 11 13 18 21 23 25 28 33 40 47 52 61 69 76
F mm -46 -29 3 19 35 51 67 100 148 196 229 293 341 390
inch -2 -1 011234689121315
α degree 6.28 7.1 7.0 7.0 7.0 7.0 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9
β (=sinα) 0.11 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.12
γ (=cosα) 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
Screen Size H-Width inch 20 32 48 56 64 72 80 96 120 144 160 192 216 240
4:3 Diagonal inch 25 40 60 70 80 90 100 120 150 180 200 240 270 300
A mm 1396 1902 2900 3399 3898 4397 4896 5893 7390 8887 9885 11881 13378 14875
inch 55 75 114 134 153 173 193 232 291 350 389 468 527 586
C mm 1387 1867 2827 3307 3787 4266 4746 5706 7146 8585 9545 11464 12904 14344
inch 55 74 111 130 149 168 187 225 281 338 376 451 508 565
B mm 247 338 461 522 583 644 705 827 1011 1194 1316 1561 1744 1927
inch 10 13 18 21 23 25 28 33 40 47 52 61 69 76
F mm -54 -29 3 19 35 51 67 100 148 196 229 293 341 390
inch -2 -1 011234689121315
Zoom Lens (Wide)
Zoom Lens (Tele)
A
C
F
B
α