Fold Mirror Alignment - Christie CP2210 Service Manual

Section 3: Service Setup
3.2

Fold Mirror Alignment

When properly aligned, the fold mirror directs light from the integrator fully and precisely on the DMD pixels.
After moving or replacing the fold mirror, check for consistent light over-spill around the perimeter of a full
white or black field—if the shadows vary or disappear completely along any edge or corner, the fold mirror is
cropping light from the DMDs and must be realigned. When corrected, the shadows cast by the integrator
edges form an even perimeter around the full active display area without interfering with the image and all of
the image is displayed.
1. Display a full white field.
2. Use a 1.5mm hex key to unlock the two set screws (Figure 3-1/B) on the fold mirror.
3. To make adjustments turn the pivot screw 90-180° using a 2.5mm hex key (Figure 3-1/C).
4. Use the 2.5mm hex key to adjust both cap screws, which pivot the fold mirror back and forth (Figure 3-1/
A).
5. Continue to make adjustments until a full white field image is projected.
Figure 3-1 Fold Mirror Alignment
3-2
A
Cap Screw (1 of 2)
B
Set Screw (1 of 2)
C
Pivot Screw
CP2210 Service Manual
020-100556-04 Rev. 1 (01-2012)