Keyboard point stick
Items Procedures
Symptom
Point stick not working properly
Possible causes
Dust trapped under point stick, loose point stick cap.
Troubleshooting steps
1. Inspect any signs of dust, liquid spill that prevent point stick from working.
2. Check whether point stick cap is loose and reseat it if necessary.
The sections below are intended for authorized service providers/technicians.
Example of back of keyboard, including keyboard,
point stick, and backlight cables.
1. Verify whether keyboard ex cables are in good condition (no delamination or
torn cable end, no missing or cracked tracks, pads).
2. Verify keyboard ex cable ends are fully inserted and aligned with connectors
on system board and back of keyboard and that connector tabs are properly
closed.
3. Reseat point stick cables.
Keyboard backlight
Items Procedures
Symptom
Backlight function not working properly
Possible causes
Backlight disabled, loose connection.
Troubleshooting steps
NOTE: Not all notebook computers have backlit keyboards.
A keyboard function key lets you turn the light on and o. Verify if backlit feature is
not disabled by pressing a combination of Fn + Backlit key.
The sections below are intended for authorized service providers/technicians.
1. Verify if backlight ex cables are in good condition (no delamination or torn
cable end, no missing or cracked tracks, pads).
2. Verify backlight ex cable ends are fully inserted and aligned with connectors
on system board and that connector tabs are properly closed.
3. Reseat backlight cable.
104 Chapter 6 Troubleshooting guide
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