WWAN module
CAUTION: The WWAN module and WLAN module are not interchangeable.
Description Spare part number
EVDO WWAN module for use in all countries and regions except Japan and Asia/Pacific 399440-001
Vodafone HSPDA WWAN module 448672-002
Cingular HSPDA WWAN module 448673-002
Before removing the WWAN 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 memory/WLAN module compartment cover (see
Expansion memory module
on page 54).
6. Release the keyboard (see
Keyboard on page 62).
Remove the WWAN module:
1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
NOTE: The red WWAN antenna cable is connected to the WWAN module “Main” terminal. The
blue WWAN antenna cable is connected to the WWAN module “Aux” terminal. If the computer is
equipped with an HSPDA WWAN module, the red WWAN antenna cable is connected to the only
terminal on the module.
2. Remove the two Phillips PM2.5×3.0 screws (2) that secure the WWAN module to the computer.
(The edge of the module opposite the slot rises away from the computer.)
Component replacement procedures 67
