HP ProBook 4545s HP ProBook 4545s Notebook PC - Maintenance and Service Guide - Page 72

Fingerprint board, Remove one Phillips PM2.0×4.0 screw

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c. Keyboard (see Keyboard on page 44). d. Metal heat shield (see Metal heat shield on page 48). e. Top cover (see Top cover on page 55). Remove the power button board/function board: 1. Position the top cover upside-down with the front toward you. 2. Remove one Phillips PM2.0×4.0 screw (1) on both the power button board and the function board to the top cover. 3. Lift the power button board (2) and the function board (3) from the top cover Reverse this procedure to install the power button board/function board. Fingerprint board Description Fingerprint board. Includes cable, mounting bracket, and retaining screw. Spare part number 683485-001 Before removing the fingerprint 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. 64 Chapter 4 Removal and replacement procedures

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c.
Keyboard (see
Keyboard
on page
44
).
d.
Metal heat shield (see
Metal heat shield
on page
48
).
e.
Top cover (see
Top cover
on page
55
).
Remove the power button board/function board:
1.
Position the top cover upside-down with the front toward you.
2.
Remove one Phillips PM2.0×4.0 screw
(1)
on both the power button board and the function
board to the top cover.
3.
Lift the power button board
(2)
and the function board
(3)
from the top cover
Reverse this procedure to install the power button board/function board.
Fingerprint board
Description
Spare part number
Fingerprint board. Includes cable, mounting bracket, and retaining screw.
683485-001
Before removing the fingerprint 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.
64
Chapter 4
Removal and replacement procedures