d. Keyboard (see Keyboard on page 50)
e. Top cover (see Top cover on page 58)
f. ExpressCard assembly (see ExpressCard assembly on page 67)
g. Audio/USB board (see Audio/USB board on page 70)
h. Speakers (see Speakers on page 73)
i. Fan/heat sink assembly (see Fan/heat sink assembly on page 74)
j. Display assembly (see Display assembly on page 80)
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:
●
WWAN module (see WWAN module on page 43)
●
Solid-state drive (see Solid-state drive (M.2) on page 45)
●
WLAN module (see WLAN module on page 46)
●
Expansion memory (see Primary memory module on page 48)
●
Primary memory (see Expansion memory module on page 54)
●
smart card reader (see Smart card reader on page 69)
●
Processor (see Processor on page 77)
●
Graphics board (see Graphics board on page 78)
Remove the system board:
1. Make sure that the RTC battery cable is disconnected from the system board (see RTC battery
on page 56).
88 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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