Adjust Vertical Boresight; Adjust Dmd Convergence - Christie D4K2560 User Manual

Adjust Vertical Boresight

1. Focus the image at the top edge of the screen.
2. Loosen the lens mount stabilization screw (D).
3. Loosen the vertical lock screw (A).
4. Extend the lens focus (B) completely.
5. Adjust the Focus knob to retract the lens. Watch the image
at the top edge of the screen until it comes into focus. If the
entire screen is in focus, proceed to step 8.
6. Continue retracting the lens.
a. If the bottom edge of the image comes into focus
before the lens is completely retracted, adjust the
vertical boresight bolt (C) to direct or aim the lens
mount UP towards the top of the screen to balance
out the top/bottom edges.
b. If the top edge of the image is not in focus, adjust the vertical boresight bolt (C) to direct
or aim the lens mount toward the bottom of the screen.
7. When both sides appear equally blurry, adjust the horizontal and/or vertical offset to re-center
the image on the screen.
8. Repeat Steps 2 to 5 until the top and bottom of the screen are both well-focused.
9. Re-focus the center of the image. The goal is for good focus at the center and on all sides.
10. Tighten the lock screw (A) and the lens mount stabilization screw (D) to maintain the adjustments.
11. Check the boresight again.
12. Perform a lens calibration as described in

Adjust DMD Convergence

UV EXPOSURE! Protective UV glasses must be worn when performing convergence
adjustments. Failure to comply results in death or serious injury.
A convergence problem occurs when one or more projected colors (red, green, blue) appears
misaligned when examined with a convergence test pattern. Normally, the three colors should
overlap precisely to form pure white lines throughout the image and one or more poorly converged
individual colors may appear adjacent to some or all of the lines. Contact your Christie accredited
service technician to correct DMD convergence issues.
D4K2560/Mirage 4K25 User Manual
020-101076-02 Rev. 1 (11-2013)
Calibrate the Lens Motors
Adjust the Image
D
B
C A
on page 49.
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