4. Turn the board upside down, and then disconnect the cable (3) from the board (4).
5. Remove the function board from the top cover.
Reverse this procedure to install the function board.
Card reader board
Description Spare part number
Card reader board 721535-001
Before removing the card reader 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. Remove the battery (see
Battery on page 36).
5. Remove the following components:
a. Service door (see
Service door on page 37).
b. Keyboard (see
Keyboard on page 49)
c. Optical drive (
Optical drive on page 41)
d. Top cover (see
Top cover on page 53)
Remove the card reader board:
Component replacement procedures 63
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