USB board
Description Spare part number
USB 2.0 board (includes Mylar) 658141-001
Before removing the USB 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 41).
5. Remove the following components:
a. Bottom door (see
Bottom door on page 47).
b. Hard drive (see
Hard drive on page 52)
c. Optical drive (see
Optical drive on page 48)
d. WLAN module (see
WLAN module on page 59)
e. WWAN module (see
WWAN module on page 57)
f. Fan (see
Fan on page 65)
g. Heat sink (see
Heat sink on page 66)
h. Keyboard (see
Keyboard on page 71)
i. Top cover (see
Bottom cover on page 73)
j. Function board (see
Function board on page 82)
k. System board (see
System board on page 83)
Remove the USB board:
1. Position the computer upside-down with the front toward you.
Component replacement procedures 87
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