Section 3: Service Setups
D4K25 Service Manual
3-9
020-100880-01 Rev. 1 (06-2012)
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.
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.
Figure 3-9 Poor Convergence Example (pattern simplified)
