HP ProBook 4740s HP ProBook 4740s Notebook PC - Maintenance and Service Guide - Page 60

Fingerprint reader board, Remove the Phillips PM2.0×3.0 screw

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Fingerprint reader board Description Fingerprint reader board (includes cable, bracket, and screws) Spare part number 684610-001 Before removing the fingerprint reader 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 33). 5. Remove the following components: a. Bottom door (see Bottom door on page 34). b. Keyboard (see Keyboard on page 45) c. Top cover (see Top cover on page 47) Remove the fingerprint reader board: 1. Position the top cover upside-down with the front toward you. 2. Remove the Phillips PM2.0×3.0 screw (1) that secures the fingerprint reader board bracket to the top cover. 3. Slide the bracket toward the bottom of the top cover (2), and then lift it off the top cover (3). 52 Chapter 4 Removal and replacement procedures

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Fingerprint reader board
Description
Spare part number
Fingerprint reader board (includes cable, bracket, and screws)
684610-001
Before removing the fingerprint reader 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
33
).
5.
Remove the following components:
a.
Bottom door (see
Bottom door
on page
34
).
b.
Keyboard (see
Keyboard
on page
45
)
c.
Top cover (see
Top cover
on page
47
)
Remove the fingerprint reader board:
1.
Position the top cover upside-down with the front toward you.
2.
Remove the Phillips PM2.0×3.0 screw
(1)
that secures the fingerprint reader board bracket to
the top cover.
3.
Slide the bracket toward the bottom of the top cover
(2)
, and then lift it off the top cover
(3)
.
52
Chapter 4
Removal and replacement procedures