Adjust Dmd Convergence - Christie CP4230 User Manual

a. If the bottom edge of the image comes into focus before the lens is completely retracted, then the
image focuses in front of the screen. To correct this problem, adjust the Vertical Boresight Bolt 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 fails to come into
focus then the image focuses behind the screen.
To correct this problem, adjust the Vertical Bore-
sight Bolt to direct or aim the lens mount DOWN
towards the bottom of the screen.
5. When both sides appear equally blurry, tap Menu >
Advanced Setup > ILS File Setup and tap the
directional arrows in the Offset area to center the
image on the screen.
6. Repeat Steps 2 - 5 until the top and bottom of the
screen are both well-focused.
7. Although all sides of the image should now be in focus, the center of the image may be slightly blurry at
this point. Re-focus the center of the image. The goal is for good focus at the center and on all sides.
8. Adjust the Vertical Locking Screw to lock the lens mount in place and check boresight again.
4.9

Adjust DMD Convergence

DANGER
convergence adjustments.
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.
CP4230 User Manual
020-100621-03 Rev. 1 (05-2014)
UV EXPOSURE! Protective UV glasses must be worn when performing
Section 4: Adjust the Image
Focus Left
Edge Center
4-5