Specifications

c.
Keyboard (see
Keyboard on page 57)
d. Top cover (see
Top cover on page 61)
Remove the USB board:
1. Disconnect the USB board cable (1) from the system board.
2. Detach the USB board cable (2) from the system board and base enclosure. (The USB board
cable is attached to the system board and the base enclosure with double-sided tape.)
3.
Remove the Phillips PM2.5×4.0 screw (3) that secures the USB board to the base enclosure.
4.
Remove the USB board (4).
Reverse this procedure to install the USB board.
Power connector cable
Description Spare part number
For use only on computer models equipped with a 120-W AC adapter 681974-001
For use only on computer models equipped with a 90-W or 65-W AC adapter 681973-001
Before removing the power connector cable, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
Component replacement procedures
71