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
●
Optical drive (see
●
Hard drive (see
●
WLAN module (see
●
Keyboard (see
●
Top cover (see
When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
Memory module (see
●
RTC battery (see
●
Fan and heat sink (see
●
Processor (see
Remove the system board:
1.
Close the computer.
2.
Turn the computer upside down, with the front toward you.
3.
Disconnect the rear speaker cable (1) and the optical drive cable (2) from the system board.
4.
Turn the computer right side up, with the front toward you.
5.
Open the computer.
80
Chapter 4 Removal and replacement procedures
Battery on page
Optical drive on page
Hard drive on page
WLAN module on page
Keyboard on page
Top cover on page
Memory module on page
RTC battery on page
Fan/heat sink assembly on page
Processor on page
86)
45), and then remove the following components:
46)
49)
54)
56)
60)
53)
52)
82)