
Troubleshooting
2.18 Non-Functioning  Keyboard
Keyboard
not operating
properly.
Connect notebook to good external keyboard.
| 
 | N | |
| External | 
 | Replace | 
| device | 
 | system | 
| works? | 
 | board. | 
Y
Reseat internal
keyboard
connector (if
applicable).
N
Replace internal
OK?  keyboard or cable.
 keyboard or cable.
Y
Y
| Done | OK? | Done | 
N
Replace system board.
| Maintenance and Service Guide |