HP Dv4-1124nr HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 110

Modem module

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Modem module Description Modem module for use with most computer models Modem module for use with computer models in Australia and New Zealand Spare part number 461749-001 461749-011 Before removing the modem module, 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 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. WLAN cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard cover on page 76) f. Display assembly (see Display assembly on page 83) g. Top cover (see Top cover on page 95) Remove the modem module: 1. Disconnect the modem module cable (1) from the modem module. 2. Remove the two Phillips PM2.0×4.0 screws (2) that secure the modem module to the system board. 102 Chapter 4 Removal and replacement procedures

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Modem module
Description
Spare part number
Modem module for use with most computer models
461749-001
Modem module for use with computer models in Australia and New Zealand
461749-011
Before removing the modem module, 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
55
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
59
)
b.
WLAN cover (see
WLAN module
on page
62
)
c.
Optical drive (see
Optical drive
on page
57
)
d.
Keyboard (see
Keyboard
on page
72
)
e.
Keyboard cover (see
Keyboard cover
on page
76
)
f.
Display assembly (see
Display assembly
on page
83
)
g.
Top cover (see
Top cover
on page
95
)
Remove the modem module:
1.
Disconnect the modem module cable
(1)
from the modem module.
2.
Remove the two Phillips PM2.0×4.0 screws
(2)
that secure the modem module to the system board.
102
Chapter 4
Removal and replacement procedures