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Reverse this procedure to install the speakers.
LED board
Description Spare part number
LED board 640215-001
Before removing the LED 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 47), and then remove the following components:
●
Optical drive (see
Optical drive on page 49)
●
Hard drive (see
Hard drive on page 51)
●
Keyboard (see
Keyboard on page 57)
●
Top cover (see
Top cover on page 61)
Remove the LED board:
1. Release the ZIF connector (1) to which the LED board cable is connected, and then disconnect
the LED board cable (2) from the system board.
2. Release the clips (3) built into the base enclosure that secure the LED board.
3. Lift the right edge of the LED board (4) to release it from clips built into the base enclosure.
72 Chapter 4 Removal and replacement procedures