USB board
Description Spare part number
USB board L00831-001
USB board cable (included in Cable Kit) L00848-001
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. Place the computer in “Battery Safe mode” (Battery Safe mode on page 30).
3. Disconnect all external devices connected to the computer.
4. 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.
5. Remove the following components:
a. Service doors (Service doors on page 31).
b. Hard drive (Hard drive on page 37)
c. Keyboard (Keyboard on page 40)
d. Top cover (Top cover on page 44)
e. Card reader board (Card reader board on page 57)
f. Battery (Battery on page 58)
Remove the USB board:
1. Position the computer upright on a at surface and open the display as far as possible.
2. Disconnect the cable from the ZIF connector on the USB board (1).
3. Remove the Torx T8 2.5×5.0 screw (2) that secures the board to the computer.
Component replacement procedures 53
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