Modem Module - HP ProBook 4230s Maintenance And Service Manual

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 646016-001. See
for more Cable Kit spare part number information.
Description
Modem module
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
5. Remove the following components:
a. Access door (see
b. WLAN module (see
c. WWAN module (see
d. Keyboard (see
e. Top cover (see
Remove the modem module:
1. Position the computer upright and open it.
2. Remove the two Phillips PM2.0×4.0 screws (1) that secure the modem module to the system
board.
3. Lift the modem straight up (2) to disconnect it from the system board.
Battery on page 41).
Access door on page
WLAN/Bluetooth combo card on page
WWAN module on page
Keyboard on page 54)
Top cover on page 55)
43).
49)
47)
Component replacement procedures
Cable Kit on page 26
Spare part number
628824-001
61