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 42)
●WWAN module (see WWAN and GPS modules (select models only) on page 48)
●WLAN module (see WLAN module on page 50)
●Memory module (see Memory module on page 52)
●RTC battery (see RTC battery on page 53)
●Fan/heat sink assembly (see Fan/heat sink assembly on page 69)
Remove the system board:
1.Disconnect the power connector cable from the system board.
2.Remove the 2 Phillips 2.0×4.0 screws (1) that secure the system board to the base enclosure.
3.Lift the right side of the system board (2) until it rests at an angle.
Component replacement procedures | 73 |