e. Heat sink (see Heat sink on page 63)
f. Switch cover (see Switch cover on page 72) g. TouchPad (see TouchPad on page 68)
h. Display assembly (see Display assembly on page 76) i. Top cover (see Top cover on page 81)
j. Speaker assembly (see Speaker assembly on page 83) k. Modem module (see Modem module on page 85)
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:
●SIM (see SIM on page 47)
●Memory module (see Memory module on page 56)
●WLAN module (see WLAN module on page 70)
●WWAN module (see WWAN module on page 60)
●Processor (see Processor on page 65)
●Graphics card (see Graphics card on page 66)
●PC Card assembly (see PC Card assembly on page 90) Remove the system board:
1. Disconnect the following cables from the system board:
(1)
(2)USB board cable
(3)Audio board cable
(4)Bluetooth module cable
2. Position the base enclosure with the rear panel toward you.
Component replacement procedures 87