9600 Service Manual - gmecorp-usa.com

40 Image System Calibration
5. While making an exposure, adjust switch SW1 on the Pixel/Column Filter PCB to
get the best cancellation of any column shading differences. Figure 35
demonstrates what characteristics column defects look like and, therefore, what this
adjustment is trying to eliminate or reduce.
Figure 35 - Unacceptable Column Defect Image
6. While making an exposure, adjust R1 (magnitude of the cancellation signal) on the
Pixel/Column Filter PCB to increase or decrease cancellation if required. This is
shown in Figure 34 and can be accessed from the side of the system as indicated
by the arrow.
7. Remove the copper filter.