HP Pavilion tx2000 HP Pavilion tx2000 Entertainment PC - Maintenance and Servi - Page 64

RTC battery, Keyboard see

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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 412390-001 Before removing the RTC battery, 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 cord. 4. Remove the battery (see Battery on page 36). 5. Remove the following components: a. Hard drive (see Hard drive on page 38) b. Optical drive (see Optical drive on page 40) c. Keyboard (see Keyboard on page 47) d. Switch cover (see Switch cover on page 49) e. Display assembly (see Display assembly on page 51) f. Top cover (see Top cover on page 54) Remove the RTC battery: ▲ Use a non-conductive, flat-bladed tool to pry the RTC battery out of the socket. Reverse this procedure to install the RTC battery. Be sure the RTC battery is installed with the "+" sign facing up. 56 Chapter 4 Removal and replacement procedures

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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
412390-001
Before removing the RTC battery, 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 cord.
4
.
Remove the battery (see
Battery
on page
36
).
5
.
Remove the following components:
a
.
Hard drive (see
Hard drive
on page
38
)
b
.
Optical drive (see
Optical drive
on page
40
)
c
.
Keyboard (see
Keyboard
on page
47
)
d
.
Switch cover (see
Switch cover
on page
49
)
e
.
Display assembly (see
Display assembly
on page
51
)
f
.
Top cover (see
Top cover
on page
54
)
Remove the RTC battery:
▲
Use a non-conductive, flat-bladed tool to pry the RTC battery out of the socket.
Reverse this procedure to install the RTC battery. Be sure the RTC battery is installed with the “+” sign
facing up.
56
Chapter
4
Removal and replacement procedures