Power button board
NOTE: The power button board spare part kit does not include the cable. The cable is available as spare part
number L57012-001.
NOTE: Liquid metal thermal grease is available as spare part number L65923-001.
Table 6-6 Power button board descriptions and part numbers
Description Spare part number
Power button board L57020-001
Before removing the power button board, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 26).
2. Remove the bottom cover (see Bottom cover on page 27).
3. Disconnect the battery (see Battery and speakers on page 32).
4. Remove the fan/heat sink assembly (see Heat sink/fan assembly on page 35).
Remove the power button board:
1. Disconnect the cable from the ZIF connector on the power button board (1).
2. Remove the Phillips M2.0 × 3.0 screw (2) that secures the board to the computer.
3. Remove the board from the computer (3).
Reverse this procedure to install the power button board.
40 Chapter 6 Removal and replacement procedures for authorized service provider parts
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