HP 6720s - Page 71

4.
Remove the battery (see
Battery on page 37).
5.
Remove the following components:
a.
Hard drive (see
Hard drive on page 38)
b.
Optical drive (see
Optical drive on page 44)
c.
Keyboard (see
Keyboard on page 46)
d.
Switch cover (see
Switch cover on page 48)
e.
Speaker (see
Speaker on page 50)
f.
Display lid switch module (see
Display lid switch module on page 51)
g.
Display assembly (see
Display assembly on page 52)
h.
Top cover (see
Top cover on page 56)
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:
●
Memory module (see
Memory module on page 43)
●
WLAN module (see
WLAN module on page 40)
●
Processor (see
Processor on page 70)
●
ExpressCard assembly (see
ExpressCard assembly on page 75)
Remove the system board:
1. Remove the RJ-11 jack (1) from the clip built into the base enclosure and remove the RJ-11 jack cable
from the hook (2) built into the base enclosure.
2. Disconnect the fan cable (3) and the Bluetooth module cable (4) from the system board.
Component replacement procedures 63