HP 610 Compaq 615 Notebook PC and Compaq 610 Notebook PC - Maintenance and Ser - Page 83

RTC battery

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Removal and replacement procedures RTC battery Description RTC battery Spare part number 449137-001 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 4-6). 5. Remove the following components: a. Hard drive (see "Hard drive" on page 4-8) b. Optical drive (see "Optical drive" on page 4-18) c. Keyboard and switch cover (see "Keyboard and switch cover" on page 4-20) d. Speaker (see "Speaker" on page 4-24) e. Display assembly (see "Display assembly" on page 4-25) f. Top cover (see "Top cover" on page 4-32) g. System board (see "System board and optical drive connector board" on page 4-35) 4-40 Maintenance and Service Guide

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4–40
Maintenance and Service Guide
Removal and replacement procedures
RTC battery
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 4-6
).
5. Remove the following components:
a.
Hard drive (see
“Hard drive” on page 4-8
)
b.
Optical drive (see
“Optical drive” on page 4-18
)
c.
Keyboard and switch cover (see
“Keyboard and switch cover” on page 4-20
)
d.
Speaker (see
“Speaker” on page 4-24
)
e.
Display assembly (see
“Display assembly” on page 4-25
)
f.
Top cover (see
“Top cover” on page 4-32
)
g.
System board (see
“System board and optical drive connector board” on page 4-35
)
Description
Spare part number
RTC battery
449137-001