Before removing the system board, follow these steps:
1.
Turn off 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 the power from the computer by unplugging the power cord from the computer.
3.
Disconnect all external devices from the computer.
4.
Remove the battery (see
Battery on page 68
), and then remove the following components:
a.
Service cover (see
Service cover on page 70
)
b.
Optical drive (see
Optical drive on page 71
)
c.
Hard drive (see
Hard drive on page 74
)
d.
Fan (see
Fan on page 87
)
e.
Modem module (see
Modem module on page 85
)
f.
Fan (see
Fan on page 87
)
g.
Keyboard (see
Keyboard on page 88
)
h.
Base enclosure (see
Base enclosure on page 93
)
NOTE:
When replacing the system board, be sure that the following components are removed from
the defective system board and installed on the replacement system board:
●
SIM (see
SIM on page 69
, if applicable)
●
Memory module (see
Memory module on page 77
)
●
WWAN module (see
WWAN module on page 80
)
●
WLAN module (see
WLAN module on page 82
)
●
Heat sink (see
Heat sink on page 111
)
●
Processor (see
Processor on page 114
)
Remove the system board:
1.
Position the computer right-side up, with the front toward you.
2.
Open the computer.
3.
Release the ZIF connector
(1)
to which the TouchPad cable is connected, and then disconnect the
TouchPad cable
(2)
from the system board.
4.
Release the ZIF connector
(3)
to which the fingerprint reader board cable is connected, and then
disconnect the fingerprint reader board cable
(4)
from the system board.
108
Chapter 4 Removal and replacement procedures
Содержание ProBook 6470b
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Страница 35: ...3 Illustrated parts catalog 27 ...
Страница 37: ...Computer major components Computer major components 29 ...
Страница 48: ...Display assembly subcomponents 40 Chapter 3 Illustrated parts catalog ...
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