HP ENVY 15-u400 Maintenance and Service Guide - Page 49

USB/audio board, Remove the Phillips PM2.5×4.0 screw

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USB/audio board Description USB/audio board (includes cable) Spare part number 774600-001 Before removing the USB/audio 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 top cover (see Top cover on page 28). To remove the USB/audio board: 1. Disconnect the USB/audio cable from the system board (1). 2. Disconnect the speaker cable from the USB/audio board (2). 3. Remove the Phillips PM2.5×4.0 screw (3). 4. Lift the USB/audio board and cable from the computer (4). Reverse this procedure to install the USB/audio board. Component replacement procedures 41

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USB/audio board
Description
Spare part number
USB/audio board (includes cable)
774600-001
Before removing the USB/audio 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 top cover (see
Top cover
on page
28
).
To remove the USB/audio board:
1.
Disconnect the USB/audio cable from the system board
(1)
.
2.
Disconnect the speaker cable from the USB/audio board
(2)
.
3.
Remove the Phillips PM2.5×4.0 screw
(3)
.
4.
Lift the USB/audio board and cable from the computer
(4)
.
Reverse this procedure to install the USB/audio board.
Component replacement procedures
41