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Audio board
Description Spare part number
Audio board (includes cable) 486634-001
Before removing the 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 40).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 43)
b. Optical drive (see
Optical drive on page 41)
c. Keyboard (see
Keyboard on page 52)
d. Keyboard cover (see
Keyboard cover on page 54)
e. Display assembly (see
Display assembly on page 57)
f. Top cover (see
Top cover on page 64)
Remove the audio board:
1. Release the ZIF connector (1) to which the audio board cable is attached, and disconnect the audio
board cable (2) the system board.
2. Remove the two Phillips PM2.0×6.0 screws (3) that secure the audio board to the base enclosure.
3. Remove the audio board (4).
70 Chapter 4 Removal and replacement procedures