Card reader board
Description Spare part number
Card reader board 646361-001
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 48).
5. Remove the following components:
a. Bottom door (see
Bottom door on page 50).
b. Hard drive (see
Hard drive on page 53)
c. Optical drive (see
Optical drive on page 51)
d. WLAN module (see
WLAN/Bluetooth combo card on page 59)
e. WWAN module (see
WWAN module on page 57)
f. Fan (see
Fan on page 67)
g. Heat sink (see
Heat sink on page 69)
h. Keyboard (see
Keyboard on page 64)
i. Top cover (see
Top cover on page 72)
j. System board (see
System board on page 93)
Remove the card reader board:
1. Position the system board upside-down.
2. Remove the two Phillips PM2.0×3.0 screws (1) that secure the card reader board to the system
board.
Component replacement procedures
97