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5. Lift up on the rear edge, slide backwards, and then remove the TouchPad button board and
cable (4).
Reverse this procedure to install the TouchPad button board and cable.
Fan
Description Spare part number
Fan (with foil) 691641–001
Before removing the fan:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4. Remove the display panel (see
Display panel on page 31).
5. Remove the base enclosure (see
Base enclosure on page 33).
6. Remove the battery cable (see
Battery on page 35).
Remove the fan:
1. Disconnect the fan cable (1).
2. Remove the 2 Phillips PM screws securing the fan to the unit (2), and then lift the fan upwards
(3).
46 Chapter 4 Removal and replacement procedures