Modem module
NOTE: All modem module spare part kits include a modem module cable.
Description Spare part number
For use in all countries and regions except Australia, Brazil, and New Zealand 443899-001
For use only in Australia and New Zealand 443899-011
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 39).
5. Remove the following components:
a. Hard drive compartment cover (see
Hard drive on page 41)
b. Keyboard (see
Keyboard on page 50)
c. Rear plastic bezel (see
Rear plastic bezel on page 52)
d. Top cover (see
Top cover on page 54)
e. Display assembly (see
Display assembly on page 62)
f. System board (see
System board on page 65)
Remove the modem module:
1. Turn the system board upside down, with the front toward you.
2. Remove the two Phillips PM2.5×4.0 screws (1) that secure the modem module to the system board.
3. Lift the modem module (2) straight up to disconnect it from the system board.
Component replacement procedures 71
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