Remove the speaker assembly:
1.
Position the computer upright with the front toward you.
2.
Disconnect the cable from the system board
(1)
.
3.
Remove the tape the secures the speaker cable to the system board
(2)
.
4.
Lift the speaker from the computer
(3)
.
Reverse this procedure to install the speaker assembly.
System board
NOTE:
All system board spare part kits include replacement thermal material.
Description
Spare part number
System board for use in models without WWAN
646039-001
System board for use in models with WWAN
646040-001
System board for use in models with WWAN in Russia and the People's Republic of China
646040-AA1
Before removing the system 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.
Component replacement procedures
63
