b. Detach the wireless antenna transceivers (2) from the display enclosure. (The wireless antenna
transceivers are attached to the display enclosure with double-sided adhesive.)
c. Remove the wireless antenna.
The wireless antenna are available using spare part number 720532-001.
Reverse this procedure to reassemble and install the display assembly.
Fan
Description Spare part number
Fan (includes cable) 720235-001
Before removing the fan, 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 34), and then remove the following components:
a. Service cover (see
WLAN module on page 35)
b. Hard drive (see
Hard drive on page 38)
c. Base enclosure (see
Base enclosure on page 45)
d. Display assembly (see
Display assembly on page 47)
Remove the fan:
1. Disconnect the fan cable (1) from the system board.
2. Remove the two Phillips PM2.5×4.5 screws (2) that secure the fan to the top cover.
Component replacement procedures 55
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