General Procedures and Functional Checks
4-20 LOGIQ C9 Series – Basic Service Manual
5482298-100 English Rev. 5
Clean the Trackball
Dust is often building up behind the ball, so it interferes with the
ball rotation and for optical trackballs the light used for sensing.
To get access for cleaning, you need to remove the ball.
The ball is held in position by the Dust Gasket.
1. Power off the system.
2. Rotate the dust gasket counterclockwise until it can be
removed from the keyboard.
Figure 4-13. Remove the retainer
3. Separate the trackball and the gasket. Wipe off any oil or
dust from the trackball, gasket and the trackball housing
using a cleaner or cotton swab.
4. Assemble the trackball and gasket, then put it into the
housing and rotate it clockwise until its notches are set in
the position.
Test the Trackball
Power up the and test that the trackball now works as intended.
When cleaning, make sure not to spill or spray any liquid into
the trackball housing (keyboard or system).
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