HP EliteBook 8770w Maintenance And Service Manual page 93

Before removing the Audio/USB 2.0 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
5. Remove the service access cover (see
6. Remove the optical drive (see
bay hard drive on page
7. Remove the keyboard (see
8. Remove the top cover (see
Remove the audio/USB 2.0 board:
1. Position the computer right-side up with the front toward you.
2. Remove the three Phillips M2.5x3.0 screws (1) that secure the audio/USB 2.0 board to the base
enclosure.
3. Disconnect the speaker cable (2) from the Audio/USB 2.0 board.
4. Lift the left edge of the audio/USB 2.0 board to disconnect it from the system board and remove
the audio/USB 2.0 board (3) at an angle to the left from the base enclosure
Reverse this procedure to install the audio/USB 2.0 board.
Battery on page 42),
Service access cover on page
Optical drive on page
57).
Keyboard on page
Top cover on page
54) or upgrade bay hard drive (see
62).
73).
Component replacement procedures
43).
Upgrade
85