Installation Considerations; Screen Type - Christie Roadie HD+35K User Manual

Section 2: Installation and Setup
9. Adjust the lens. Use the Focus button on the standard IR remote or the built-in keypad to focus the image.
Use the Zoom buttons to increase or decrease image size (not available with fixed 0.8:1 and 1:1 lenses).
Use the Lens Shift button, and the ARROW keys to shift the image location. Refer to
Working with the Lenses
instructions.
10. Set Cable Length. In the
voltage DC cables connected between your lamp ballast and projection head. This regulates the voltage
drop that occurs over distance, and ensures that adequate voltage reaches the lamp. Particularly in
projectors rented for temporary installations, this setting may have to be changed from its last use.
Adjustment range is 2-30m (6½-100 ft.).
Setting the "Cable Length" also allows you to achieve the same lumens, regardless of cable length.
However, to drive the lamp at maximum power, even with the shorter ballast cables, set "Cable Length" to
maximum power. Due to the resistance losses that occur with longer ballast cables, the ballast does not
achieve the same maximum power.
Press A
UTO
Image Settings
2.2

Installation Considerations

Although the Roadie HD+35K is carefully engineered to deliver exceptional quality, high brightness, and high
resolution output, your final display results could still be compromised if the projector is improperly installed.
This subsection discusses issues to consider before proceeding with a final installation. Even for temporary
installations, this information helps you to better understand what may be done to ensure optimized images.

2.2.1 Screen Type

Front Screen Installations
This projector is intended for use with flat or slightly curved screens, front or rear, ranging from about 1.5
meters (5 ft.) to 45 meters (150 ft.) wide. Although flat screens generally offer a low gain similar to a matte
white wall paint-approximately 1 with a viewing angle just under 180°- and are considered most effective
when ambient light is low, this difference in gain may be negligible given the very high light output from this
projector. In addition, incident light reflects equally in all directions so the audience can see the display from
more acute viewing angles. See
Audience Coverage
2-6
on how to use the motorized lens mount and
Lamp
menu, set the "Cable Length (m)" slidebar to match the length of the high-
S and/or M
ETUP ENU
to refine other display parameters as necessary. Refer to
Menu.
Figure 2-6.
Figure 2-6 Audience Coverage with a Flat Screen
Section 3.14
Section 2.4.1 Lens Installation
Section 3.6.3
Flat
Screen
(gain 1)
Viewing
Angle
Roadie HD+35K User Manual
020-100340-02 Rev. 1 (01-2010)
for