HP ENVY 15-ah000 Maintenance and Service Guide - Page 53

RTC battery, Remove the RTC battery

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RTC battery Description RTC battery Spare part number 819504-001 Before removing the RTC battery, follow these steps: 1. Turn off 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 the power from the computer by unplugging the power cord from the computer. 3. Disconnect all external devices from the computer. 4. Remove the bottom cover (see Bottom cover on page 28). 5. Remove the battery (see Battery on page 44). Remove the RTC battery: ▲ Disconnect the disc cell RTC battery cable from the system board, and then remove the battery. Reverse this procedure to install the RTC battery. Component replacement procedures 45

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RTC battery
Description
Spare part number
RTC battery
819504-001
Before removing the RTC battery, follow these steps:
1.
Turn
off
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 the power from the computer by unplugging the power cord from the computer.
3.
Disconnect all external devices from the computer.
4.
Remove the bottom cover (see
Bottom cover
on page
28
).
5.
Remove the battery (see
Battery
on page
44
).
Remove the RTC battery:
▲
Disconnect the disc cell RTC battery cable from the system board, and then remove the battery.
Reverse this procedure to install the RTC battery.
Component replacement procedures
45