USB board
Description Spare part number
USB board 925450-001
USB board cable 925343-001
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 28).
5. Remove the optical drive (see Optical drive on page 29), if installed.
6. Remove the bottom cover (see Bottom cover on page 35).
7. Remove the speakers (see Speakers on page 50).
To remove the USB board:
1. Disconnect the cable from the connector on the USB board (1).
2. Remove the Phillips PM2.5×5.0 screw (2) that secures the board to the computer.
3. Remove the USB board from the computer (3).
Reverse this procedure to install the USB board.
52 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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