HP Dv71270us Service Guide - Page 105

Subwoofer, Before removing the subwoofer, follow these steps

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c. Switch cover (see Switch cover on page 66) d. Keyboard (see Keyboard on page 68) e. Speaker assembly (see Speaker assembly on page 72) f. Display assembly (see Display assembly on page 73) g. Top cover (see Top cover on page 82) h. System board (see System board on page 91) Remove the fan: 1. Remove the two Phillips PM2.5×5.0 screws (1) that secure the fan to the base enclosure. 2. Remove the fan (2) from the base enclosure. Reverse this procedure to install the fan. Subwoofer Description Subwoofer (includes 2 mounting grommets) Spare part number 480471-001 Before removing the subwoofer, 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 51). 5. Remove the following components: Component replacement procedures 97

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c.
Switch cover (see
Switch cover
on page
66
)
d.
Keyboard (see
Keyboard
on page
68
)
e.
Speaker assembly (see
Speaker assembly
on page
72
)
f.
Display assembly (see
Display assembly
on page
73
)
g.
Top cover (see
Top cover
on page
82
)
h.
System board (see
System board
on page
91
)
Remove the fan:
1.
Remove the two Phillips PM2.5×5.0 screws
(1)
that secure the fan to the base enclosure.
2.
Remove the fan
(2)
from the base enclosure.
Reverse this procedure to install the fan.
Subwoofer
Description
Spare part number
Subwoofer (includes 2 mounting grommets)
480471-001
Before removing the subwoofer, 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
51
).
5.
Remove the following components:
Component replacement procedures
97