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Base enclosure
Description Spare part number
Base enclosure (includes four rubber feet, service cover release latch assembly, and battery
release latch assembly)
685997-001
Before removing the base enclosure, 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 57), and then remove the following components:
a. Service cover (see
Service cover on page 59)
b. Smart Card reader (see
Smart Card reader on page 60)
c. Optical drive (see
Optical drive on page 61)
d. Hard drive (see
Hard drive on page 65)
e. Modem module (see
Modem module on page 74)
f. Keyboard (see
Keyboard on page 76)
NOTE: When replacing the base enclosure, be sure to remove the following components from the
defective base enclosure and install them on the replacement base enclosure:
●
Bluetooth module and cable (see
Bluetooth module on page 73)
●
Speaker assembly (see
Speaker assembly on page 83)
●
RJ-11 jack assembly (see
RJ-11 jack cable on page 85)
Remove the base enclosure:
1. Close the computer.
2. Turn the computer upside down, with the front toward you.
3.
Remove the four rubber screw covers (1). The rubber screw covers are included in the Rubber Kit,
spare part number 642768-001.
4. Remove the eight Torx PM2.5×8.0 screws (2) that secure the base enclosure to the computer.
80 Chapter 4 Removal and replacement procedures