Specifications

Modem module
Description Spare part number
Modem module 443899-001
Before removing the modem 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 62).
6. Remove the TouchPad (see
TouchPad on page 66).
Remove the modem module:
1. Remove the two Phillips PM2.0×4.0 screws (1) that secure the modem module to the system
board.
2. Disconnect the modem module (2) from the system board by lifting it straight up.
3. Disconnect the modem module cable (3) from the modem module.
4. Remove the modem module.
Reverse this procedure to install the modem module.
68 Chapter 4 Removal and replacement procedures