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USB/audio board
Description
USB/audio board
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
5.
Remove the following components:
a.
Service door (see
b.
Keyboard (see
c.
Optical drive
d.
Top cover (see
Remove the USB/audio board:
1.
Position the top cover upside-down.
2.
Disconnect the cable that routes to the system board (1).
3.
Disconnect the cable that routes to the fingerprint reader board (2).
4.
Remove the Phillips PM2.5×4.0 screw (3) that secures the USB/audio board to the computer.
5.
Rotate the top of the board upward, pull the board away from the connectors (to remove them from top
cover holes), and then lift the board off the top cover (4).
Battery on page
36).
Service door on page
Keyboard on page
49)
(Optical drive on page
41)
Top cover on page
53)
37).
Component replacement procedures
Spare part number
721542-001
65
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