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Top cover
Description Spare part number
Top cover in black finish 686093-001
Top cover in silver finish 690194-001
Before removing the top cover, follow these steps:
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 39).
5. Remove the base enclosure (see
Base enclosure on page 42).
6. Disconnect the battery cable (see
Battery on page 43.
Remove the top cover:
1. Turn the computer right-side up, with the front toward you.
2. Open the computer.
3. Remove the 3 screws from each hinge on the top cover (1), and then remove the top cover (2).
Reverse this procedure to install the top cover.
74 Chapter 4 Removal and replacement procedures