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Chapter 2. Setting up the projector
This chapter provides information on positioning the projector, connecting a
computer source, using the projector with Windows
®
98, and displaying and
adjusting a computer source image.
Note: You can use your projector with Presentation Director to plan and give
presentations with confidence. You can ensure that your computer and
display will not turn off or go blank during a presentation, be sure your
graphics and text will be as crisp and clear, and save important display
settings for future presentations with the same equipment. For additional
information on Presentation Director, go to the
http://www.ibm.com/pc/support Web site and search on Presentation
Director.
Positioning the projector
To determine where to position the projector, consider the size and shape of your
screen, the location of your power outlets, and the distance between the projector
and the rest of your equipment. Following are some general guidelines:
v Position the projector on a flat surface at a right angle to the screen. The
projector must be at least 4.9 feet (1.5 m) from the projection screen.
v Position the projector within 10 feet (3m) of your power source and within 6 feet
(1.8m) of your video device (unless you purchase extension cables). To ensure
adequate cable access, do not place the projector within 6 inches (.15m) of a wall
or other object.
v Position the projector the desired distance from the screen. The distance from the
lens of the projector to the screen, the zoom setting, and the video format
determine the size of the projected image, as shown in Figure 2-1.
For more information about image sizes at different distances, see “Projected
image size” on page 2-7.
v The image exits the projector at a given angle, as shown in Figure 2-2 on
page 2-2. The image offset is 112.2% when the projector is in 4:3 default mode.
This means that if you have an image 10 ft high, the bottom of the image will be
1.22 ft above the center of the lens.
3.3 ft
5 ft
12.5 ft
4.9 ft
7.5 ft
19 ft
Figure 2-1. Projection distances
© Copyright IBM Corp. 2003 2-1
13


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