Subwoofer
Description Spare part number
Subwoofer (includes cable and 3 isolators) 720563-001
Before removing the subwoofer, 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 41), and then remove the following components:
a. Service door (see
Service door on page 42)
b. mSATA SSD (see
mSATA SSD on page 43)
c. Hard drive (see
Hard drive on page 46)
d. Base enclosure (see
Base enclosure on page 53)
Remove the subwoofer:
1. Disconnect the subwoofer cable (1) from the system board.
2. Remove the three Phillips PM2.5×6.2 screws (2) that secure the subwoofer to the top cover.
Component replacement procedures 81
