Audio/USB board
Description Spare part number
Audio/USB board (includes audio jack, USB port, and cable) 746648-001
Before removing the audio/USB board, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the Battery (see Battery on page 29), and then remove the following components:
a. Service cover (see Service cover on page 30)
b. Hard drive (see Hard drive on page 31)
c. Optical drive (see Optical drive on page 37)
d. Keyboard (see Keyboard on page 38)
e. Top cover (see Top cover on page 41)
Remove the audio/USB board:
1. Release the ZIF connector (1) to which the audio/USB board cable is attached, and then disconnect the
audio/USB board cable from the system board.
2. Remove the Philllips PM2.5×4.5 screw (2) that secures the audio/USB board to the base enclosure.
3. Remove the audio/USB board (3) and cable.
Reverse this procedure to install the audio/USB board.
Component replacement procedures 51
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