HP Dv7-3085dx HP Pavilion dv7 Entertainment PC - Maintenance and Service Guide - Page 78

Subwoofer, Switch cover and keyboard see

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Removal and replacement procedures Subwoofer Description Subwoofer Spare part number 516333-001 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 4-6). 5. Remove the following components: a. Optical drive (see "Optical drive" on page 4-7) b. Hard drive (see "Hard drive" on page 4-11) c. TV tuner module (see "TV tuner module" on page 4-18) d. Switch cover and keyboard (see "Switch cover and keyboard" on page 4-19) e. Speaker assembly (see "Speaker assembly" on page 4-23) f. Display assembly (see "Display assembly" on page 4-25) g. Top cover (see "Top cover" on page 4-34) h. USB board (see "USB board" on page 4-41) Remove the subwoofer: 1. Remove the USB board cable from atop the subwoofer 1. 2. Disconnect the subwoofer cable from the system board 2. 3. Remove the three Phillips PM2.5×5.0 broadhead screws 1 that secure the subwoofer to the base enclosure. 4. Be sure that the rubber grommets 2 that contained the broadhead screws are still in place. 4-42 Maintenance and Service Guide

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4–42
Maintenance and Service Guide
Removal and replacement procedures
Subwoofer
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 4-6
).
5. Remove the following components:
a.
Optical drive (see
“Optical drive” on page 4-7
)
b.
Hard drive (see
“Hard drive” on page 4-11
)
c.
TV tuner module (see
“TV tuner module” on page 4-18
)
d.
Switch cover and keyboard (see
“Switch cover and keyboard” on page 4-19
)
e.
Speaker assembly (see
“Speaker assembly” on page 4-23
)
f.
Display assembly (see
“Display assembly” on page 4-25
)
g.
Top cover (see
“Top cover” on page 4-34
)
h.
USB board (see
“USB board” on page 4-41
)
Remove the subwoofer:
1. Remove the USB board cable from atop the subwoofer
1
.
2. Disconnect the subwoofer cable from the system board
2
.
3. Remove the three Phillips PM2.5×5.0 broadhead screws
1
that secure the subwoofer to the base enclosure.
4. Be sure that the rubber grommets
2
that contained the broadhead screws are still in place.
Description
Spare part number
Subwoofer
516333-001