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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 39)
●
WWAN module (see
WWAN module on page 45)
●
WLAN module (see
WLAN module on page 47)
●
Memory module (see
Memory module on page 49)
●
RTC battery (see
RTC battery on page 51)
●
Fan/heat sink assembly (see
Fan/heat sink assembly on page 67)
Remove the system board:
1. Disconnect the display panel cable (1) from the system board.
2. Disconnect the power connector cable (2) from the system board.
3. Remove the Phillips PM2.0×4.0 screw (1) that secures the system board to the base enclosure.
4. Lift the right side of the system board (2) until it rests at an angle.
Component replacement procedures
65