Reverse this procedure to install the USB/audio board.
I/O board
Description Spare part number
I/O board (includes cable) 765986-001
Before removing the I/O 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. Disconnect the tablet from the keyboard dock (see
Releasing the tablet from the keyboard dock
on page 25).
5. Remove the dock bottom cover (see
Dock bottom cover on page 26).
6. Disconnect the battery cable (see
Battery cable on page 28).
Remove the I/O board:
1. Disconnect the following cables from the board:
(1): Card reader board
(2): Touchpad board
(3): Keyboard cable
(4): Power connector cable
(5): HDMI cable
(6): USB cable
Keyboard dock components 31
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