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4. Remove the PC Card assembly (2).
Reverse this procedure to install the PC Card assembly.
USB/audio board
Description Spare part number
USB/audio board (includes USB cable and audio cable) 455426-001
Before removing the USB/audio 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 45).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 49)
b. Optical drive (see
Optical drive on page 53)
c. Keyboard (see
Keyboard on page 57)
d. Fan (see
Fan on page 61)
e. Heat sink (see
Heat sink on page 62)
f. Switch cover (see
Switch cover on page 71)
g. TouchPad (see
TouchPad on page 67)
h. Display assembly (see
Display assembly on page 75)
Component replacement procedures 91