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CHAPTER 4: Troubleshooting
142
Testing the touchpad
If the touchpad doesn’t work, do the following actions one at a time to correct the
problem.
To test the touchpad:
1 Reconnect the touchpad cables.
2 Replace the touchpad.
3 Replace the system board.
After you use the touchpad, the pointer may drift on the screen for a short time.
This self-acting pointer movement can occur when a slight, steady pressure is
applied to the touchpad pointer. This symptom is not a hardware problem. No
service actions are necessary if the pointer movement stops in a short period of
time.
Important
Do not replace a non-defective FRU.