Positioning the Projector
Correct positioning of the projector is essential to achieve the best results. Before
deciding on the final location of the projector please ensure you read the following
information very carefully.
The projector must be situated in a clean, dry environment and away from direct
sunlight or heat. Make sure you locate the projector so that the air inlets and outlets
for the cooling system are not obstructed.
The projector should never, under any circumstances, be operated more than +/-
15
O
from left to right with the lamp pointing upwards (i.e. with the right hand side
facing downwards).
PROJECTOR HEIGHT
The default height for positioning the projector is at the centre of your screen.
However, you can set the projector above or below the centre and adjust the image
using the ‘Lens Shift’ (Rising/Falling Front) facility to maintain a geometrically
correct image. Typically, the projector can be located up to the top or bottom of the
screen without geometrical distortions, but please refer to the lens data sheets for
information on the maximum rising/falling front correction available for a particular
lens. In some cases the projector may also be tilted without introducing observable
distortions.
HORIZONTAL POSITION
As with vertical positioning, the default horizontal position of the projector is at the
centre of the screen. However, the projector can be mounted up to one quarter
screen width left or right of image centre and the ‘Horizontal Lens Shift’ function
used to centre the image on screen without geometric distortion.
Vertical Lens Shift and Horizontal Lens Shift can be used in combination,
however the extent of their individual ranges will be reduced according to the
amount of shift used i.e. Vertical Lens Shift is maximised when Horizontal Lens
Shift is centred and vice versa.
B—4
System Installation
INSTALLATION
LBV00056; Revision C - 01/03/03
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