HP Presario CQ40-400 Compaq Presario CQ40 Notebook PC - Maintenance and Servic - Page 54

Keyboard cover, Remove the Phillips PM2.5×6.0 screw

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Keyboard cover Description Keyboard cover (includes power button board and cable) Spare part number 487299-001 Before removing the keyboard 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 battery (see Battery on page 34). 5. Remove the following components: a. Optical drive (see Optical drive on page 35) b. Hard drive (see Hard drive on page 36) c. Keyboard (see Keyboard on page 44) Remove the keyboard cover: 1. Turn the computer upside down, with the rear toward you. 2. Remove the Phillips PM2.0×2.0 broadhead screw (1) from the optical drive bay, the Phillips PM2.5×5.0 screw (2) from the hard drive bay, the four Phillips PM2.0×3.0 screws (3) from the battery bay, and the two Phillips PM2.5×10.0 screws (4) from the base enclosure rear corners that secure the keyboard cover to the computer. 3. Turn the computer display-side up, with the front toward you. 4. Remove the Phillips PM2.5×6.0 screw (1) from the front left corner of the keyboard cover. 5. Open the computer as far as possible. 46 Chapter 4 Removal and replacement procedures

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Keyboard cover
Description
Spare part number
Keyboard cover (includes power button board and cable)
487299-001
Before removing the keyboard 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 battery (see
Battery
on page
34
).
5.
Remove the following components:
a.
Optical drive (see
Optical drive
on page
35
)
b.
Hard drive (see
Hard drive
on page
36
)
c.
Keyboard (see
Keyboard
on page
44
)
Remove the keyboard cover:
1.
Turn the computer upside down, with the rear toward you.
2.
Remove the Phillips PM2.0×2.0 broadhead screw
(1)
from the optical drive bay, the
Phillips PM2.5×5.0 screw
(2)
from the hard drive bay, the four Phillips PM2.0×3.0 screws
(3)
from
the battery bay, and the two Phillips PM2.5×10.0 screws
(4)
from the base enclosure rear corners
that secure the keyboard cover to the computer.
3.
Turn the computer display-side up, with the front toward you.
4.
Remove the Phillips PM2.5×6.0 screw
(1)
from the front left corner of the keyboard cover.
5.
Open the computer as far as possible.
46
Chapter 4
Removal and replacement procedures