Adjusting Screen Brightness (Fl) Via Web User Interface; Basic Image Alignment; Basic Optical Alignment Procedure - Christie CP2000-M User Manual

2.4.1 Adjusting Screen Brightness (fL) via Web User Interface

To determine screen brightness in footlamberts
(fL), screen brightness at both extremes of lamp
power (minimum and maximum) must be
measured for a given lamp type at the center of
the screen using a light meter. These 2 readings
must be recorded in the Admin: Lamp menu
(Figure 2-12). These measurements establish a
range (stored in memory) from which the
projector can interpolate all other lamp power
settings, converting them to approximate
footlamberts for display in the menus. Repeat the
calibration when switching to a different lamp
type/size.
2.5

Basic Image Alignment

Only perform image alignment once the projector is fully assembled and powered up in its final location. Basic
image alignment ensures the image reflected from the DMDs is parallel to and well-centered with the lens and
screen. This initial optical alignment is the foundation for optimizing images on the screen and must be
completed before final boresight adjustments. Before beginning ensure the CP2000-M/MR is properly
positioned relative to the screen.

2.5.1 Basic Optical Alignment Procedure

1. Display a good test pattern appropriate for analyzing image focus and geometry, such as the framing test
pattern, showing the crosshair centered across the image.
2. Coarse focus: Do a quick preliminary focus and (if available) zoom adjustment with the primary lens only.
Refer to 3.7 Working with the Lenses, on page
this point, just center focus.
3. Center the image on the screen: If the projector is mounted off center to the screen axis, then offset the
lens as much as required, and/or aim the projector over slightly towards the center of the screen. Use
caution when doing so, too much tilt will cause excessive keystone distortion.
4. Re-check side-to-side leveling: With the framing pattern on screen, double-check projector leveling so the
top edge of the image is parallel to the top edge of the screen.
5. Throw Distance: Ensure the projector is positioned in the throw ratio range for the particular lens.
CP2000-M/MR User Manual
020-100123-07 Rev. 1 (12-2009)
Figure 2-12 Calibrating Screen Brightness Via Web UI
3-59. DO NOT worry about consistency across the image at
Section 2: Installation & Setup
2-13