Remove the modem module cable:
1. Disconnect the modem module cable (1) from the modem module.
2. Release the modem module cable from the clips (2) and routing channel built into the base
enclosure.
3. Release the RJ-11 jack (3) from the clip built into the base enclosure.
4. Remove the modem module cable.
Reverse this procedure to install the modem module and the modem module cable.
USB board
Description Spare part number
USB board 597572-001
Before removing the USB board, 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), and then remove the following components:
a. Optical drive (see
Optical drive on page 52) or secondary hard drive (see Secondary hard
drive on page 53)
b. Keyboard (see
Keyboard on page 61)
c. Switch cover (see
Switch cover on page 65)
ENWW Component replacement procedures 93
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