USB daughter board
NOTE: The USB daughter board spare part kit does not include the USB daughter board cable (spare part
number L15578-001).
Description Spare part number
USB daughter board L15577-001
IMPORTANT: Make special note of each screw and screw lock size and location during removal
and replacement
Before removing the USB daughter board, follow these steps:
1. Shut down the computer.
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 29), and then remove the following components:
▲
Battery (see Battery on page 31).
Remove the USB daughter board:
1. Release the USB daughter board cable from the ZIF connector on the system board (1).
2. Remove the Phillips PM2.0×3.5 screw (2) that secures the USB daughter board to the computer.
3. Remove the USB daughter board from the computer (3).
4. Remove the two adhesive tapes from the board before replacing the board (4).
Reverse this procedure to install the USB daughter board.
Component replacement procedures 39