HP 15-r029wm HP 15 Notebook PC Compaq 15 Notebook PC Maintenance and Service G - Page 72

RTC battery, System board see

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RTC battery Description RTC battery Spare part number 759981-001 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 33), and then remove the following components: ● Keyboard (see Keyboard on page 39) ● Top cover (see Top cover on page 42) ● WLAN module (see WLAN module on page 50) ● System board (see System board on page 55) To remove the RTC battery: 1. Position the system board upside down. 2. Using a thin tool or screwdriver, disengage the battery from the socket (1), and then remove the battery (2). Reverse this procedure to install the RTC battery. 64 Chapter 4 Removal and replacement procedures

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RTC battery
Description
Spare part number
RTC battery
759981-001
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
33
), and then remove the following components:
●
Keyboard (see
Keyboard
on page
39
)
●
Top cover (see
Top cover
on page
42
)
●
WLAN module (see
WLAN module
on page
50
)
●
System board (see
System board
on page
55
)
To remove the RTC battery:
1.
Position the system board upside down.
2.
Using a thin tool or screwdriver, disengage the battery from the socket
(1)
, and then remove the battery
(2)
.
Reverse this procedure to install the RTC battery.
64
Chapter 4
Removal and replacement procedures