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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 37)
●
WWAN module (see
WWAN and GPS modules (select models only) on page 43)
●
WLAN module (see
WLAN module on page 45)
●
Memory module (see
Memory module on page 47)
●
RTC battery (see
RTC battery on page 48)
●
Fan/heat sink assembly (see
Fan/heat sink assembly on page 64)
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
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