5. Remove the fingerprint reader board (4).
Reverse this procedure to install the fingerprint reader board.
Speaker assembly
Description Spare part number
Speaker assembly (includes left and right speakers and cables) 730555-001
Before removing the speaker assembly, 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 service cover (see
Service cover on page 71), and then remove the following
components:
a. Battery (see
Battery on page 73)
b. Hard drive (see
Hard drive on page 75)
c. Keyboard (see
Keyboard on page 85)
d. Top cover (see
Top cover on page 94)
e. System board (see
System board on page 115)
122 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ENWW
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