USB board
Table 5-9 USB board and cable descriptions and part numbers
Description Spare part number
USB board (includes cable) L44578-001
Before removing the USB board, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 29).
2. Place the computer in Battery Safe mode (Battery Safe mode on page 29).
3. Remove the bottom cover (Bottom cover on page 30).
4. Remove the battery (Battery on page 31).
Remove the USB board:
1. Disconnect the cable from the ZIF connector on the USB board (1).
2. Remove the two Phillips M2.0 × 4.0 screws (2) that secure the board to the computer.
3. Lift the rear of the board up (3), and then pull the board away from the connector and out of the
computer to remove it (4).
Reverse this procedure to install the USB board.
40 Chapter 5 Removal and replacement procedures for authorized service provider parts
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