Ceiling Installation - NEC MultiSync LT81 User Manual

WARNING
• 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 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 bottom or the side
of the projector.

Ceiling Installation

Installing your MultiSync LT81/LT100 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.
NOTE : Distances may vary 5%.
If your projector is mounted on the ceiling and your image is upside
down, use the "Menu" and "Select" buttons on your projector cabinet
or ( ) ( ) buttons on your remote control to correct the orientation.
(See page 70.)
INSTALLATION
233"–303"
200"–261"
2.27ft
(691.8mm)
12.3m (40.35ft)
Projection distance and screen size examples
• Horizontal projection position
• Vertical projection position
Screen size Projection distance L ft.(m) Dimension H inch (cm)
Inches Wide (W)
24
40 5.25 ft (1.60m)
60 7.87 ft (2.40m)
80 10.66ft (3.25m)
100 13.3ft (4.05m)
200 26.9ft (8.20m)
300 40.35ft (12.30m)
100"–131"
80"–104"
60"–78"
40"–53"
24"–31"
3.15m (10.33t)
4.2m (13.78ft)
5.3m (17.39ft)
10.65m (34.94ft)
Lens centered left to right
Tele (T) Both W & T
3.94ft (1.20m) 2.76" (7.0cm)
6.89ft (2.10m) 4.8" (12.2cm)
10.33ft (3.15m) 6.93" (17.6cm)
13.78ft (4.20m) 9.37" (23.8cm)
17.39ft (5.30m) 11.46" (29.1cm)
34.94ft (10.65m) 23.58" (59.9cm)
35.08" (89.1cm)
L
41
1.2m (3.94ft)
2.1m (6.89ft)
42