HP Dv3-1075us HP Pavilion dv3 Entertainment PC - Maintenance and Service Guide - Page 65

RTC battery, Turn the computer upside down, and remove the WLAN module cover 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 (includes double-sided tape) Spare part number 486835-001 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 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 32). Remove the RTC battery: 1. Turn the computer upside down, and remove the WLAN module cover (see WLAN module on page 33). 2. Disconnect the RTC battery cable (1) from the system board. 3. Remove the RTC battery (2). NOTE: The RTC battery is attached to the system board with double-sided tape. Reverse this procedure to install the RTC battery. Component replacement procedures 57

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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 (includes double-sided tape)
486835-001
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 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
32
).
Remove the RTC battery:
1.
Turn the computer upside down, and remove the WLAN module cover (see
WLAN module
on page
33
).
2.
Disconnect the RTC battery cable
(1)
from the system board.
3.
Remove the RTC battery
(2)
.
NOTE:
The RTC battery is attached to the system board with double-sided tape.
Reverse this procedure to install the RTC battery.
Component replacement procedures
57