Compaq Presario CQ40-400 Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 78

USB board

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USB board Description USB board USB board cable Spare part number 486842-001 486843-001 Before removing the USB board, 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. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on page 44) d. Keyboard cover (see Keyboard cover on page 46) e. Speaker assembly (see Speaker assembly on page 49) f. Display assembly (see Display assembly on page 51) g. Top cover (see Top cover on page 59) Remove the USB board: 1. Turn the computer display-side up, with the right side toward you. 2. Disconnect the USB board cable (1) from the system board. 3. Remove the cable from the base enclosure clips (2). 4. Remove the Phillips PM2.5×3.0 screw (3) that secures the USB board to the computer. 70 Chapter 4 Removal and replacement procedures

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USB board
Description
Spare part number
USB board
486842-001
USB board cable
486843-001
Before removing the USB board, 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.
Hard drive (see
Hard drive
on page
36
)
b.
Optical drive (see
Optical drive
on page
35
)
c.
Keyboard (see
Keyboard
on page
44
)
d.
Keyboard cover (see
Keyboard cover
on page
46
)
e.
Speaker assembly (see
Speaker assembly
on page
49
)
f.
Display assembly (see
Display assembly
on page
51
)
g.
Top cover (see
Top cover
on page
59
)
Remove the USB board:
1.
Turn the computer display-side up, with the right side toward you.
2.
Disconnect the USB board cable
(1)
from the system board.
3.
Remove the cable from the base enclosure clips
(2)
.
4.
Remove the Phillips PM2.5×3.0 screw
(3)
that secures the USB board to the computer.
70
Chapter 4
Removal and replacement procedures