3. Disconnect the USB cable (3) and the power connector cable (4) from the USB/power connector
board.
4.
Remove the USB/power connector board.
Reverse this procedure to install the USB/power connector board.
System board
Description Spare part number
System board (includes modem cable) 446477-001
Before removing the system 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 37).
5.
Remove the following components:
a.
Hard drive (see
Hard drive on page 42)
b.
Optical drive (see
Optical drive on page 49)
c.
Switch cover (see
Switch cover on page 51)
d.
Keyboard (see
Keyboard on page 55)
e.
Speaker assembly (see
Speaker assembly on page 53)
f.
Display assembly (see
Display assembly on page 58)
Component replacement procedures 71
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