Multi-function board
Description Spare part number
Function board 739574-001
Before removing the function board, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the bottom cover (see Bottom cover on page 31)
5. Remove the battery (see Battery on page 36).
6. Remove the keyboard (see Keyboard on page 46)
7. Remove the heat sink/fan assembly (see Heat sink/fan assembly on page 55)
8. Remove the system board (see System board on page 57)
Remove the function board:
1. Remove the Phillips PM2.0×3.0 screw (1) that secures the board to the computer.
2. Lift the board up and o the computer (2).
NOTE: The function board cable is available in the Cable Kit, spare part number 781953-001.
Reverse the removal procedures to install the function board.
60 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts
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