HP mt20 Maintenance and Service Guide - Page 67

RTC battery, System board see

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RTC battery Description RTC battery Spare part number not spared 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 following components: a. Service door (see Service door on page 26). b. WLAN module (see WLAN/Bluetooth combo card on page 29) c. Keyboard (see Keyboard on page 32) d. Top cover (see Top cover on page 39) e. USB/audio board (see USB/audio board on page 49) f. Battery (see Battery on page 50) g. System board (see System board on page 54) Remove the RTC battery: 1. Position the system board upside-down. 2. Use a tool to pry the battery out of the socket (1). 3. Remove the battery from the system board (2). Reverse this procedure to install the RTC battery. Component replacement procedures 57

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RTC battery
Description
Spare part number
RTC battery
not spared
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 following components:
a.
Service door (see
Service door
on page
26
).
b.
WLAN module (see
WLAN/Bluetooth combo card
on page
29
)
c.
Keyboard (see
Keyboard
on page
32
)
d.
Top cover (see
Top cover
on page
39
)
e.
USB/audio board (see
USB/audio board
on page
49
)
f.
Battery (see
Battery
on page
50
)
g.
System board (see
System board
on page
54
)
Remove the RTC battery:
1.
Position the system board upside-down.
2.
Use a tool to pry the battery out of the socket
(1)
.
3.
Remove the battery from the system board
(2)
.
Reverse this procedure to install the RTC battery.
Component replacement procedures
57