X lens shift adjustable range, Installation – NEC GT5000 User Manual

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2-4

0.32H

0.5V

0.32H

0.5V

Desktop/Front
Vertical

Ceiling/Front
Vertical

Normal position

Horizontal

Normal projection position

x Lens Shift Adjustable Range

Lens Shift Range for Desktop and Ceiling Mount Application
The diagram below shows the location of the image position in the lens. The lens can be shifted within the shaded area as shown
using the normal projection position as a starting point.

Maximum Possible Range for GT20ZL:

Up: 0.5 V
Down: 0.5 V
Right: 0.32 H
Left: 0.32 H
(H: width of projected image, V: height of projected image)

NOTE: If lens is shifted in two directions combined, maximum range in either direction cannot be obtained due to rounded off area near edge of lens. (example: shift up
and right) See diagram below.

2. Installation

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.

• To avoid premature lamp failure, do not tilt the front of the projector up

or down by more than 45

° from level.

• Only use your projector on a solid, level surface. If the projector falls

to the ground, you can be injured and the projector severely dam-
aged.

• Do not use the projector where temperatures vary greatly. The pro-

jector 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.

Range of lens shift range on GT20ZL

Vertical: 11.30

° to 8.18°

Horizontal: 9.67

° to 7.00°

When performing the lens shift both vertically and horizontally,
the angle on some corners may become narrower than the above-
mentioned one.