USB/audio board
Description Spare part number
USB/audio board (includes cable) 600124-001
Before removing the USB/audio board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off 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 first 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 36).
5. If your computer has WWAN capability, remove the SIM (see SIM on page 37).
6. Remove the following components:
a. Keyboard (see Keyboard on page 40).
b. Hard drive (see Mass storage devices on page 44).
c. Top cover (see Top cover on page 46).
Remove the USB board:
1. Release the ZIF connector (1) to which the USB/audio board cable is connected, and disconnect
the cable (2).
2. Release the USB/audio board from the clip attached to the base enclosure (3), and remove the
USB/audio board (4).
Reverse this procedure to install the USB/audio board.
54 Chapter 4 Removal and replacement procedures