HP Dv2990nr HP Pavilion dv2500 and dv2700 Notebook PC - Maintenance and Servic - Page 108

USB board, Keyboard see

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USB board Description USB board for use in computer models with Intel processors (includes USB board cable) USB board for use in computer models with Intel or AMD processors (includes USB board cable) Spare part number 417085-001 455839-001 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 56). 5. Remove the following components: a. Hard drive (see Hard drive on page 61) b. Wireless module compartment cover (see WLAN module on page 65) c. Optical drive (see Optical drive on page 73) d. Keyboard (see Keyboard on page 74) e. Switch cover (see Switch cover on page 79) f. Display assembly (see Display assembly on page 82) g. Top cover (see Top cover on page 87) Remove the USB board: 1. Disconnect the USB board cable (1) from the system board. The USB board cable and num lock light cable are included in the USB board spare part kit and are also available in the Cable Kit, spare part number 417075-001. 2. Remove the num lock light cable (2) from the clip in the base enclosure. 3. Remove the Phillips PM2.5×4.0 screw (3) that secures the USB board to the computer. 100 Chapter 4 Removal and replacement procedures

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USB board
Description
Spare part number
USB board for use in computer models with Intel processors (includes USB board cable)
417085-001
USB board for use in computer models with Intel or AMD processors (includes USB board cable)
455839-001
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
56
).
5
.
Remove the following components:
a
.
Hard drive (see
Hard drive
on page
61
)
b
.
Wireless module compartment cover (see
WLAN module
on page
65
)
c
.
Optical drive (see
Optical drive
on page
73
)
d
.
Keyboard (see
Keyboard
on page
74
)
e
.
Switch cover (see
Switch cover
on page
79
)
f
.
Display assembly (see
Display assembly
on page
82
)
g
.
Top cover (see
Top cover
on page
87
)
Remove the USB board:
1
.
Disconnect the USB board cable
(1)
from the system board. The USB board cable and num lock light
cable are included in the USB board spare part kit and are also available in the Cable Kit, spare
part number 417075-001.
2
.
Remove the num lock light cable
(2)
from the clip in the base enclosure.
3
.
Remove the Phillips PM2.5×4.0 screw
(3)
that secures the USB board to the computer.
100 Chapter
4
Removal and replacement procedures