3. Release the ZIF connector (3) to which the Smart Card reader cable is attached, and then disconnect the
Smart Card reader cable from the system board.
4. Remove the Smart Card reader (4).
Reverse this procedure to install the Smart Card reader.
Audio/USB board
Description Spare part number
Audio/USB board (includes audio jack and USB port) 737732-001
Before removing the audio/USB 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 45),
5. Remove the service cover (see Service cover on page 47).
6. Remove the optical drive (see Optical drive on page 56) or upgrade bay hard drive (see Upgrade Bay
hard drive on page 58).
7. Remove the keyboard (see Keyboard on page 61).
8. Remove the top cover (see Top cover on page 71).
Remove the audio/USB board:
Component replacement procedures 89
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