Reverse this procedure to install the WLAN module.
USB board
Description Spare part number
USB board 858975-001
USB board cable 856729-001
IMPORTANT: Make special note of each screw and screw lock size and location during removal
and replacement.
Before removing the USB board, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the base enclosure (see Base enclosure on page 32).
5. Disconnect the battery (see Battery on page 34).
Remove the USB board:
▲
Disconnect the zero-insertion force (ZIF) connector (1), remove the USB board cable (2), disconnect 2
zero-insertion force (ZIF) connectors (3) and (4), remove 1 Phillips screw (5), and then lift the USB board
to remove it (6).
Component replacement procedures 45
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