3. Disconnect all external devices from the computer.
4. Remove the Battery (see
Battery on page 52), and then remove the following components:
a. Service cover (see
Service cover on page 53)
b. Hard drive (see
Hard drive on page 54)
c. Optical drive (see
Optical drive on page 62)
d. Keyboard (see
Keyboard on page 64)
e. Top cover (see
Top cover on page 67)
f. Speakers (see
Speakers on page 76)
NOTE: 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:
●
WLAN module (see
WLAN module on page 57)
●
Solid-state drive (see
Solid-state drive on page 59)
●
Memory modules (see
Memory module on page 60)
●
RTC battery (see
RTC battery on page 91)
●
Heat sink (see
Heat sink on page 87)
●
Fan (see
Fan on page 90)
Remove the system board:
1. Release the ground tape (1) that secures the display panel cable to the system board.
2. Release the ZIF connector (2) to which the display panel cable is attached, and then disconnect
the display panel cable from the system board.
Component replacement procedures
85