a.
Service cover (see
Service cover on page 57
)
b.
Hard drive (see
Hard drive on page 58
)
c.
Optical drive (see
Optical drive on page 69
)
d.
Fan/heat sink assembly (see
Fan and heat sink assembly on page 79
)
e.
Keyboard (see
Keyboard on page 72
)
f.
Display assembly (see
Display assembly on page 104
)
g.
Base enclosure (see
Base enclosure on page 82
)
h.
USB board (see
USB board on page 85
)
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 (select models only) on page 65
)
●
Solid-state drive (see
Solid-state drive on page 70
)
●
WLAN module (see
WLAN module on page 67
)
●
Expansion memory (see
Primary memory module on page 62
)
●
Primary memory (see
Expansion memory module on page 64
)
●
Smart card reader (see
Smart card reader on page 88
)
●
Processor (see
Processor on page 98
)
Remove the system board:
1.
Disconnect the following cables from the system board:
(1) Card reader cable
(2) Power connector cable
Left (3) and right (4)speaker cables
(5) Display panel cable (if display panel is still attached)
System board
93
Summary of Contents for 645 G1
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