Antennas
The antennas route from the WLAN module to the front and the rear of the computer.
To replace the antennas:
1. Prepare the computer for disassembly (Preparation for disassembly on page 20).
2. Remove the access panel (Access panel on page 21).
3. Remove the front bezel (Front bezel on page 21).
4. Rotate the hard drive cage to its upright position (Hard drive cage on page 41).
5. Remove the air duct (Air duct on page 47).
6. Remove the fan sink (Fan sink on page 51).
7. Disconnect the internal antennas from the WLAN module (WLAN module on page 46).
8. From the front of the computer, remove the Torx screw that secures the antenna to the front of the
computer (1).
9. Remove the antenna wire from the clips that secure it to the computer (2), and then pull the antenna
through the hole (3) and away from the computer.
10. From inside the computer, remove the antenna wire from its path next to the system board.
54 Chapter 4 Removal and replacement procedures – small form factor (SFF) chassis
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