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Modem module
NOTE: The modem module spare part kit does not include a modem module cable. The modem
module cable is included in the Cable Kit, spare part number 646303-001. See
Cable Kit on page 27
for more Cable Kit spare part number information.
Description Spare part number
Modem module 628824-001
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 40).
5. Remove the following components:
a. Bottom door (see
Bottom door on page 42).
b. Optical drive (see
Optical drive on page 43)
c. Keyboard (see
Keyboard on page 56)
d. Top cover (see
Top cover on page 58)
Remove the modem module:
1. Position the computer upright with the front toward you.
2. Remove the two Phillips PM2.5×5.0 screws (1) that secures the modem module to the system
board.
3. Disconnect the modem module (2) from the system board by lifting it straight up.
Component replacement procedures 69