Dell Latitude 7230 Rugged Extreme Tablet Service Manual - Page 25

FPC is still connected to the system board.

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Steps NOTE: For models shipped with an M.2 SSD door, do not remove the M.2 SSD door in order to remove the back-cover assembly. 1. Place the tablet on a flat and clean surface. 2. Remove the two screws (M2x3) and 19 screws (M2.5x8-Torx 8) that secure the base-cover assembly in place. 3. Using a plastic scribe, pry the back-cover assembly from its bottom side. 4. Carefully lift the bottom side of the base-cover assembly and open it 45° angle. CAUTION: Do not open the back-cover assembly beyond 90° angle as it damages the battery cable. The battery cable must be disconnected in order to remove the back-cover assembly. 5. Disconnect the battery cable from the connector on the system board. 6. Flip over the back-cover assembly and place it on a flat surface. 7. Remove the single screw (M2x5) that secures the power-button daughter board FPC to the system board. CAUTION: Do not pull the back-cover assembly away from the tablet while the power-button daughter board FPC is still connected to the system board. 8. Disconnect the power-button daughter board FPC from the connector system board. Removing and installing components 25

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Steps
NOTE:
For models shipped with an M.2 SSD door, do not remove the M.2 SSD door in order to remove the back-cover
assembly.
1.
Place the tablet on a flat and clean surface.
2.
Remove the two screws (M2x3) and 19 screws (M2.5x8—Torx 8) that secure the base-cover assembly in place.
3.
Using a plastic scribe, pry the back-cover assembly from its bottom side.
4.
Carefully lift the bottom side of the base-cover assembly and open it 45° angle.
CAUTION:
Do not open the back-cover assembly beyond 90° angle as it damages the battery cable. The
battery cable must be disconnected in order to remove the back-cover assembly.
5.
Disconnect the battery cable from the connector on the system board.
6.
Flip over the back-cover assembly and place it on a flat surface.
7.
Remove the single screw (M2x5) that secures the power-button daughter board FPC to the system board.
CAUTION:
Do not pull the back-cover assembly away from the tablet while the power-button daughter board
FPC is still connected to the system board.
8.
Disconnect the power-button daughter board FPC from the connector system board.
Removing and installing components
25