HP Compaq 6735b Maintenance And Service Manual page 108

4.
5.
When replacing the system board, be sure that the following components are removed from the defective
system board and installed on the replacement system board:
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Remove the system board:
1.
2.
3.
98 Chapter 4 Removal and replacement procedures
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Remove the battery (see Battery on page
Remove the following:
a. Hard drive (see Hard drive on page
b. Optical drive (see Optical drive on page
c. Keyboard (see Keyboard on page
d. Switch cover (see Switch cover on page
e. Fan (see Fan on page
f. Heat sink (see Heat sink on page
g. Display assembly (see
h. Top cover (see Top cover on page
i. ExpressCard board (see
j. Audio board (see Audio board on page
k. Speaker (see Speaker on page
l. Rear cover (see Rear cover on page
m. SIM connector board (see
SIM (see SIM on page 48)
RTC battery (see RTC battery on page
Memory modules (see Primary memory module on page 64
on page 57)
WLAN module (see WLAN module on page
WWAN module (see WWAN module on page
Processor (see Processor on page
Optical drive connector board (see
Position the base enclosure with the rear panel toward you.
Remove the two Phillips PM2.5×3.0 broad-head screws (1) that secure the system board bracket
to the base enclosure.
Remove the two HM5.0×9.0 screw locks (2) that secure the system board bracket to the base
enclosure.
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47).
53)
56)
61)
66)
68)
69)
Display assembly on page
81)
ExpressCard board on page
85)
88)
92)
SIM connector board on page
55)
59)
65)
73)
Optical drive connector board on page
75)
84)
94)
and Expansion memory module
101)