WWAN module
Description Spare part number
HSDPA EVDO WWAN module 483377-001
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 keyboard (see
Keyboard on page 60).
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.
2. Remove the two Phillips PM2.5×4.0 screws (2) that secure the WWAN module to the computer.
(The edge of the module opposite the slot rises away from the computer.)
3. Remove the WWAN module (3) by pulling the module away from the slot at an angle.
NOTE: WWAN modules are designed with a notch (4) to prevent incorrect insertion into the
WWAN module slot.
4. Remove the WWAN module.
Reverse this procedure to install the WWAN module.
64 Chapter 4 Removal and replacement procedures
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