USB board
Description Spare part number
USB board 924991-001
USB board cable 924929-001
Before removing the USB board, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the battery (see Battery on page 30).
5. Remove the optical drive (see Optical drive on page 31), if installed.
6. Remove the bottom cover (see Bottom cover on page 38).
7. Remove the speakers (see Speakers on page 52).
To remove the USB board:
1. Disconnect the USB board cable from the USB board (1).
2. Remove the Phillips PM2.0×3.0 screw (2) that secures the USB board to the computer.
3. Remove the USB board (3).
Reverse this procedure to install the USB board.
Component replacement procedures 53
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