4. Remove the battery (see Battery on page 26).
5. Remove the optical drive (see Optical drive on page 27), if installed.
6. Remove the bottom cover (see Bottom cover on page 34).
7. Remove the hard drive (see Hard drive on page 36).
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 39)
●
Memory module (see Memory module on page 41)
●
Solid-state drive (see Solid-state drive (M.2) on page 38)
To remove the system board:
1. Disconnect the display cable from the system board (1).
2. Remove the cable from under the tape and clips along its routing path (2).
54 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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