Maintenance and Service Guide

USB board
Description Spare part number
USB board L24483-001
USB board cable L23186-001
Before removing the USB 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 rubber feet (see Computer feet on page 31).
5. Remove the bottom cover (see Bottom cover on page 33).
6. Remove the battery (see Battery on page 35).
To remove the USB board:
1. Disconnect the cable from the USB board (1)
2. Remove the 2 Phillips M2.0×3.0 screws (2) that secure the USB board to the computer.
3. Remove the USB board from the computer (3).
Reverse this procedure to install the USB board.
Component replacement procedures 47