18 System Maintenance
Operator’s Manual 18 - 3
If the control panel is difficult to clean, disassemble the key caps first and then clean it with
mild soapy water.
Cleaning the trackball
Tools: paper, dry cloth, mild soapy water
For the stable performance of the system, you should perform periodical cleaning for the trackball.
A dumb cursor may be resulted from dirt inside the trackball.
Perform the following procedure:
1. Disassembling:
Rotate the trackball clamp ring anticlockwise. When the clamping ring lifts, remove the
clamping ring and trackball. You can draw out the ball with the help of adhesive tape.
2. Cleaning:
Clean the lens slightly using the tissue until there is no foreign matter. Then clean the other
parts and the dust excluder. Make sure to exert force properly when clean the small ball,
otherwise, the small ball may drop down.
When liquid is spray onto the trackball area, most of the liquid can be discharged through the
waterspout, besides, you can dry the leaving water using the tissue or cloth.
3. Installing:
Put back the ball, align the buckle with gap of the front cover, press the clamp ring with both
hands and rotate it clockwise to click the buckle. At this moment, the clamp ring cannot be
moved any further, it indicates that the clamp ring clicks in position.
Clamp ring Optical trackball
Dust excluder
Small ball (3) Lens
Waterspout
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