Acer 5540 - Manual (Page 62)

56 Chapter 3
3. Remove the middle cover (with launch board and microphone) from the main unit.
4. Disconnect the microphone cable from the launch board.
5. Take out the microphone from the middle cover.
6. Remove the two screws fastening the launch board.
7. Then remove the launch board from the middle cover.
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8. Remove the screw holding the keyboard.
9. Turn over the keyboard as shown.
10. Disconnect the keyboard cable.
11. Remove the keyboard from the main unit.
12. Tear off the tapes fastening the wireless antenna cable.