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Top case assembly - ThinkPad Edge E420

For access, remove this FRUs in order:

e420_topcase_1

Note: Your model may look slightly different from the illustration above.

StepScrew (quantity)ColorTorque
1 M2 × 6 mm, wafer-head, nylon-coated (10) Black 0.181 Nm (1.85 kgfcm)

e420_topcase_2

Note: Your model may look slightly different from the illustration above.

StepScrew (quantity)ColorTorque
2 M2 × 3 mm, wafer-head, nylon-coated (5) Black 0.181 Nm (1.85 kgfcm)

e420_topcase_3

StepScrew (quantity)ColorTorque
3
M2 × 6 mm, wafer-head, nylon-coated (1) Black 0.181 Nm (1.85 kgfcm)

e420_topcase_4

When installing: Make sure that the connector is attached firmly to the system board.

In step [6], push the top case assembly out from the frame by using a plastic pry tool as shown in the following figure.

e420_topcase_5

Remove the top case assembly in the direction shown by the arrow [7], and then detach the connector [8].

e420_topcase_6

When installing: Make sure that the connector is attached firmly to the system board.

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