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 33).
5. Remove the keyboard (see
Keyboard on page 37).
6. Remove the top cover (see
Top cover on page 40).
7. Remove the hard drive (see
Hard drive on page 44).
8. Remove the USB board (see
USB board/Audio jack on page 47).
9. Remove the WLAN (see
WLAN module on page 48).
After removing 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
Memory module on page 56)
●
RTC battery (see
RTC battery on page 58)
●
Heat sink (see
Heat sink on page 62)
●
PCH heat sink (see
PCH heat sink on page 61)
●
mSATA solid-state drive (see
mSATA solid-state drive on page 59)
Remove the system board:
NOTE: The heat sink on your system board may appear different from the heat sink shown.
1. Disconnect the following cables from the system board:
(1) Display panel cable
(2) Speaker cable
(3) Fan power connector
2. Remove the power connector bracket Phillips screw (1) and remove the power connector
bracket (2).
Component replacement procedures 53
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