HP Pavilion HDX9309TX HP Pavilion HDX Entertainmet Series Notebook PC - Mainte - Page 81

RTC battery, that secure the audio connector board to the base

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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 36). 5. Remove the following components: a. Hard drive (see Hard drive on page 42) b. Optical drive (see Optical drive on page 49) c. Keyboard (see Keyboard on page 50) d. Hinge cover (see Hinge cover on page 52) e. Rear cover (see Rear cover on page 53) f. Top cover (see Top cover on page 55) g. Subwoofer (see Subwoofer on page 67) h. System board (see System board on page 70) Remove the audio connector board: 1. Remove the two Phillips PM2.5×5.0 screws (1) that secure the audio connector board to the base enclosure. 2. Remove the audio connector board cable (2) from the clips built into the base enclosure. 3. Remove the audio connector board (3) from the base enclosure. Reverse this procedure to install the audio connector board. RTC battery NOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all passwords and CMOS settings to be cleared. Description RTC battery Spare part number 452319-001 74 Chapter 4 Removal and replacement procedures

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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
36
).
5
.
Remove the following components:
a
.
Hard drive (see
Hard drive
on page
42
)
b
.
Optical drive (see
Optical drive
on page
49
)
c
.
Keyboard (see
Keyboard
on page
50
)
d
.
Hinge cover (see
Hinge cover
on page
52
)
e
.
Rear cover (see
Rear cover
on page
53
)
f
.
Top cover (see
Top cover
on page
55
)
g
.
Subwoofer (see
Subwoofer
on page
67
)
h
.
System board (see
System board
on page
70
)
Remove the audio connector board:
1
.
Remove the two Phillips PM2.5×5.0 screws
(1)
that secure the audio connector board to the base
enclosure.
2
.
Remove the audio connector board cable
(2)
from the clips built into the base enclosure.
3
.
Remove the audio connector board
(3)
from the base enclosure.
Reverse this procedure to install the audio connector board.
RTC battery
NOTE:
Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all passwords
and CMOS settings to be cleared.
Description
Spare part number
RTC battery
452319-001
74
Chapter
4
Removal and replacement procedures