3.
Remove the USB board (3) from the base enclosure.
Reverse this procedure to install the USB board.
Bluetooth module
Description Spare part number
Bluetooth module (does not include cable) 537921-002
Bluetooth module cable 605323-001
Before removing the Bluetooth module, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC Adapter from the computer.
4.
Remove the battery (see
Battery on page 46).
5. Remove the primary hard drive cover (see
Primary hard drive cover on page 47).
6. Remove the following components:
a. Hard drive (see
Hard drive on page 48).
b. Secondary hard drive (see
Secondary hard drive on page 50).
c. Optical drive (see
Optical drive on page 58).
d. Keyboard (see
Keyboard on page 60).
82 Chapter 4 Removal and replacement procedures ENWW