3. Remove the speakers (3).
NOTE: When removing the speakers, make note of the location and condition of the four rubber
isolators (4). These isolators are critical to the performance of the speakers. The absence of these isolators
or damage to them can degrade the speaker performance.
Reverse this procedure to install the speakers.
USB/audio board
Table
5-4 USB/audio board description and spare part number information
Description Spare part number
USB/audio board (The USB/audio board spare part kit does not include the USB/audio board cable. The USB/
audio board cable is available using spare part number L52063-001.)
L52056-001
Before removing the USB/audio board, follow these steps:
1. Turn o 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 the power from the computer by rst unplugging the power cord from the AC outlet, and then
unplugging the AC adapter from the computer.
3. Disconnect all external devices from the computer.
4. Remove the bottom cover (see Bottom cover on page 23).
5. Disconnect the battery cable from the system board (see Battery on page 25).
Component replacement procedures 27
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