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NOTE: If the WLAN antenna cables are not connected to the terminals on the WLAN module, the
protective sleeves must be installed on the antenna connectors, as shown in the following illustration.
Reverse this procedure to install the WLAN module.
Modem module
NOTE: The modem module does not include a modem module cable. The modem module cable is
included in the Cable Kit, spare part number 651384-001.
Description Spare part number
Modem module (56k v.92 MDC data/fax) 628824-001
Before removing the modem module, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
Battery on page 50).
5. Remove the service cover (see
Service cover on page 52).
Remove the modem module:
1. Remove the Phillips PM2.0×3.6 screw (1) that secures the modem module to the system board.
2. Lift the modem module (2) straight up to disconnect it from the system board.
68 Chapter 4 Removal and replacement procedures