HP DV4 manual Modem module select models only

Removal and replacement procedures

Modem module (select models only).

Description	Spare part number
All countries and regions except for Australia and New Zealand	461749-001
Australia and New Zealand	461749-011

Before removing the modem module:

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 disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the computer.

4.Remove the battery (see “Battery” on page 4-7).

5.Remove the following components:

a.Hard Drive (see “Hard Drive” on page 4-8)

b.Mini Card compartment cover (see “RTC battery” on page 4-12)

c.WLAN module (see “WLAN module” on page 4-15)

d.Optical drive (see “Optical drive” on page 4-19)

e.Keyboard (see “Keyboard” on page 4-20)

f.Keyboard cover (see “Keyboard cover” on page 4-23)

g.Speaker assembly (see “Speaker assembly” on page 4-26)

h.Display assembly (see “Display assembly” on page 4-27)

i.Top cover (see “Top cover” on page 4-34)

4–40 Maintenance and Service Guide