Removal and replacement procedures
Maintenance and Service Guide 4–75
f. Fan (see “Fan” on page 4-39)
g. Heat sink (see “Heat sink” on page 4-40)
h. Palm rest (see “Palm rest” on page 4-36)
i. TouchPad (see “TouchPad” on page 4-38)
j. Display assembly (see “Display assembly” on page 4-45)
k. Top cover (see “Top cover” on page 4-59)
l. ExpressCard assembly (see “ExpressCard assembly” on page 4-63)
m. Speaker assembly (see “Speaker assembly” on page 4-68)
n. Card reader/USB board (see “Card reader/USB board” on page 4-72)
When replacing the system board, be sure that the following additional components are removed from the defective
system board and installed on the replacement system board:
■ SIM (see “SIM” on page 4-8)
■ Expansion and primary memory modules (see “Expansion memory module” on page 4-14 and “Primary
memory module” on page 4-30)
■ WLAN module (see “WLAN module” on page 4-16)
■ WWAN module (see “WWAN module” on page 4-21)
■ RTC battery (see “RTC battery” on page 4-32)
■ Processor (see “Processor” on page 4-43)
■ Modem module (see “Modem module” on page 4-66)
■ Bluetooth module cable (see “Bluetooth module cable” on page 4-70)
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