2.Disconnect the following the cables from the system board:

●Power button board cable (included in the power button board spare part kit, spare part number 639481-001)

●TouchPad cable (included in the Cable Kit, spare part number 639473-001)

●Function board cable (included in the function board spare part kit, spare part number 639480-001)

●Power connector cable (included in the Cable Kit, spare part number 639473-001)

3.Turn the top cover upside down, with the rear panel toward you.

4.Remove the three Phillips PM2.5×4.2 screws that secure the system board to the top cover.

5.Lift the left side of the system board (1) until it rests at an angle.

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Chapter 4 Removal and replacement procedures