HP 620 Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 108

Main battery connector, Remove the fan see

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Page 108 highlights

7. Slide the system board (5) out of the base enclosure. Reverse this procedure to install the system board. Main battery connector The main battery cable is included in Cable Kit 605795-001. Before removing the main battery cable, 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 53). 5. Remove the service door (see Service door on page 53). 6. Remove the hard drive (see Hard drive on page 56). 7. Remove the optical drive (see Optical drive on page 62). 8. Remove the fan (see Fan on page 64). 9. Remove the palm rest (see Palm rest on page 68). 10. Remove the keyboard (see Keyboard on page 73). 11. Remove the top cover (see Top cover on page 77). 12. Remove the system board (seeSystem board on page 96). 100 Chapter 4 Removal and replacement procedures

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7.
Slide the system board
(5)
out of the base enclosure.
Reverse this procedure to install the system board.
Main battery connector
The main battery cable is included in Cable Kit 605795-001.
Before removing the main battery cable, 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
53
).
5.
Remove the service door (see
Service door
on page
53
).
6.
Remove the hard drive (see
Hard drive
on page
56
).
7.
Remove the optical drive (see
Optical drive
on page
62
).
8.
Remove the fan (see
Fan
on page
64
).
9.
Remove the palm rest (see
Palm rest
on page
68
).
10.
Remove the keyboard (see
Keyboard
on page
73
).
11.
Remove the top cover (see
Top cover
on page
77
).
12.
Remove the system board (see
System board
on page
96
).
100
Chapter 4
Removal and replacement procedures