HP (Hewlett-Packard) TX2500 ユーザーズマニュアル
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
449729-001
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.
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
5.
Remove the following components:
a.
)
b.
Optical drive (see
)
c.
Keyboard (see
)
d.
Switch cover (see
e.
Display assembly (see
)
f.
Top cover (see
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.
facing up.
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Chapter 4 Removal and replacement procedures