SonoSite C1.9 PLUS, Service Manual, Page: 61 / 98

Chapter 7: Replacement Procedures 53
Figure 7.9 Removing the Trackball Retaining Ring
9. Remove the ball.
10. Disconnect the trackball wire harness from the Control Panel Subassembly.
11. Remove the foam backing from the Trackball to expose the four screws
connecting the Trackball to the Control Panel Subassembly (Figure 7.10).
Figure 7.10 Removing the Foam Backing
Trackball retaining ring
Foam backing