HP (Hewlett-Packard) 6720R Laptop User Manual


 
2.
Remove the RTC battery from the socket on the system board.
Reverse this procedure to install the RTC battery.
ExpressCard assembly
Description Spare part number
ExpressCard assembly 456607-001
Before removing the ExpressCard assembly, 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 39).
5.
Remove the following components:
a.
Hard drive (see
Hard drive on page 40)
b.
Optical drive (see
Optical drive on page 46)
c.
Keyboard (see
Keyboard on page 50)
d.
Switch cover (see
Switch cover on page 47)
e.
Speaker (see
Speaker on page 53)
f.
Display lid switch module (see
Display lid switch module on page 54)
g.
Display assembly (see
Display assembly on page 55)
78 Chapter 4 Removal and replacement procedures