Christie Christie HD Setup Guide download pdf (Page 19)

Section 2: Installation and Setup

M Series Setup Guide 2-7

020-100011-06 Rev. 1 (05-2013)

2.2.3 Basic Optical 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 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, make sure the projector is properly positioned

in relation to the screen.

Basic Optical Alignment Procedure

1. Display a test pattern: Appropriate for analyzing image focus and geometry, such as the “framing” test

pattern showing the cross-hair centered across the image. Press the T

EST key on the remote keypad or use

the built-in keypad and press the soft key that displays Test on the LCD display.

2. Course focus: Do a quick preliminary focus and (if available) zoom adjustment with the primary lens. Do

not worry about consistency across the image at this point, just center focus. It is good practice to have

zoom adjustment color and focus adjustment color in the center of its range.

3. Center the image in the lens: Holding a piece of paper at the lens surface, adjust offsets as necessary until

the image is centered within the lens perimeter. A full white field works best for this.

4. 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. Aim the projector over slightly towards the center of the screen, but use caution

when doing so, as too much tilt will cause excessive keystone distortion. Lens offset will not.

5. Verify 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.

6. Throw Distance: Ensure the projector is positioned in the throw distance range for the particular lens.

Folded Optics

In rear screen applications where space behind the projector is limited, a mirror may be used to fold the optical

path. The position of the projector and mirror must be accurately set - if considering this type of installation

call your dealer for assistance.

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Christie Christie HD Setup Guide Page 19