Function board/Power button board assembly
Description
Spare part number
Function board/Power button board assembly for use in 4540s models (includes cable)
683486-001
Function board/Power button board for use in 4440s/4441s models (includes cable)
683653-001
Before removing the function board and power button board, 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 55
).
5.
Remove the following components:
a.
Bottom door (see
Bottom door on page 58
).
b.
Keyboard (see
Keyboard on page 70
)
c.
Top cover (see
Top cover on page 82
)
d.
Speaker (see
Speaker assembly on page 91
)
Remove the function board/power button board assembly:
1.
Position the top cover upside-down with the front toward you.
2.
Remove the two Phillips PM2.0×4.0 screws
(1)
that secure the boards to the top cover.
3.
Remove the function board from the top cover
(2)
.
Component replacement procedures
93
Содержание ProBook 4440s
Страница 4: ...iv Safety warning notice ...
Страница 22: ...Buttons speakers and fingerprint reader select models only 14 Chapter 2 External component identification ...
Страница 34: ...Computer major components Model 4540s Figure 3 1 Model 4540s 26 Chapter 3 Illustrated parts catalog ...
Страница 39: ...Model 4440s 4441s Figure 3 2 Model 4440s 4441s Computer major components 31 ...
