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Troubleshooting Symptom Charts/Peripherals
(Continued)
- 30
Peripherals (Continued)
Cursor moves, but
clicking trackball
button has no effect
1 Simultaneously press <Command> <Control> <Power On> keys
to reset computer.
2 Check logic board cable connections.
3 Replace trackball.
4 Replace logic board.
Note: When replacing the logic board, check that the EMI clips
are securely attached to the CPU stiffener. The “CPU Stiffener”
topic in Take Apart helps you locate and identify the two EMI clips.
If both clips are not secure, replace the CPU stiffener.