6. MAINTENANCE AND TROUBLESHOOTING
6-9
6
6.7.3
How to test the Control Unit
You can test the buttons, scrollwheel and trackball of the Control Unit for proper oper-
ation at any time.
To activate the test, click [Control Unit Test] from the [Tests] menu.
To close the [Control Unit Test], click the [Close Window] icon ( ) at the top-right cor-
ner of the window.
No.
Function
1
Check the buttons, scrollwheel, and trackball for proper operation.
•
Button
: Hold down a button. The button’s on-screen location turns red if the
button is normal.
•
Scrollwheel
: Push and scroll the scrollwheel. The scrollwheel’s on-screen lo-
cation turns red if the scrollwheel is normal.
•
Trackball
: Roll the trackball. The trackball’s on-screen location turns red if the
trackball is normal.
2
Turns the unit’s back-light on or off.
3
Turns the unit’s operation beeps on or off.
4
Shows the coordinates (X, Y) of the cursor. If the coordinate values change with
trackball operation, the trackball is functioning normally.
5
Shows scrollwheel movement. If the value changes with scrollwheel operation,
the scrollwheel is functioning normally.
6
Starts the Control Unit test. To quit the test, right click three times.
