4. Detach the ngerprint reader board (4) from the keyboard/top cover. (The ngerprint reader board is
attached to the keyboard/top cover with double-sided adhesive.)
5. Remove the ngerprint reader board.
Reverse this procedure to install the ngerprint reader board.
Audio jack board
Description Spare part number
Audio jack board (includes cable) 917890-001
Before removing the audio jack board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the bottom cover (see Bottom cover on page 27), and then remove the following components:
a. Battery (see Battery on page 29)
b. Solid-state drive (see Solid-state drive on page 30)
c. Fan (see Fan on page 34)
d. Speakers (see Speakers on page 35)
e. System board (see System board on page 43)
Remove the audio jack board:
1. Remove the Philllips PM2.0×2.4 screw (1) that secures the audio jack board to the keyboard/top cover.
2. Lift the left side of the audio jack board (2) until it rests at an angle.
50 Chapter 5 Removal and replacement procedures
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