d. Keyboard (see Keyboard on page 60)
e. Speaker assembly (see
Speaker assembly on page 58)
f. Display assembly (see
Display assembly on page 63)
g. Top cover (see
Top cover on page 69)
h. Audio board (see
Audio board on page 80)
i. USB/power connector board (see
USB/power connector board on page 76)
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 modules (see
Memory module on page 48)
●
RTC battery (see
RTC battery on page 50)
●
WLAN module (see
WLAN module on page 51)
●
Bluetooth module (see
Bluetooth module on page 73)
●
ExpressCard assembly (see
ExpressCard assembly on page 74)
●
Fan/heat sink assembly (see
Fan/heat sink assembly on page 81)
●
Processor (see
Processor on page 83)
Remove the system board:
1. Remove the USB/power connector board cable (1) from the clips built into in the base enclosure.
2. Remove the two Phillips PM2.5×4.0 screws (2) that secure the system board to the base enclosure.
3. Use the optical drive connector (1) to lift the right side of the system board (2) until it rests at an
angle.
4. Disconnect the audio board cable (3) from the system board.
78 Chapter 4 Removal and replacement procedures