Christie CP4230 Service Manual page 37

4. Look for "twist" using the center vertical and horizontal lines – scan from one side of the screen to the
other, observing any change in vertical position of the color in question relative to the point where you
started. Figure 3-9 is an example of a projector with two problems; Red is twisted counter-clockwise and
Blue is high and to the left with no apparent twist.
CP4230 Service Manual
020-100622-04 Rev. 1 (05-2016)
Figure 3-9 Poor Convergence Example (pattern simplified)
Section 3: Service Setups
3-9