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4–44 Maintenance and Service Guide
Removal and replacement procedures
Audio/ExpressCard board
Before removing the Audio/ExpressCard 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 4-7).
5. Remove the following components:
a. Hard drive (see “Hard drive” on page 4-9)
b. Wireless modules antenna cables (see “WLAN module” on page 4-11 and “WWAN module” on page 4-14)
c. Optical drive (see “Optical drive” on page 4-20)
d. Keyboard and switch cover (see “Keyboard and switch cover” on page 4-22)
e. Display assembly (see “Display assembly” on page 4-27)
f. RTC battery (see “RTC battery” on page 4-39)
g. Top cover (see “Top cover” on page 4-42)
Remove the Audio/ExpressCard board:
1. Release the speaker cable from the connector 1 on the Audio/ExpressCard board.
2. Remove the two Phillips PM2.0×4.0×7.0 broadhead screws 2 and the Phillips PM2.0×4.0 3 screw from the
Audio/ExpressCard board.
3. Lift the right edge of the Audio/ExpressCard board 4 up.
4. Slide the Audio/ExpressCard board 5 to the right to clear the audio connectors from the base enclosure.
5. Remove the Audio/ExpressCard board.
Reverse this procedure to install the Audio/ExpressCard board.
Description Spare part number
Audio/ExpressCard board 594024-001