Multifunction board
Description Spare part number
Multifunction board (includes LED light pipe) 733639-001
Before removing the multifunction 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 46).
5. Remove the service door (see
Service door on page 48).
6. Remove the optical drive (see
Optical drive on page 57) or upgrade bay hard drive (see Upgrade
bay hard drive on page 59).
7. Remove the keyboard (see
Keyboard on page 63).
8. Remove the top cover (see
Top cover on page 72).
Remove the multifunction board:
1. Position the top cover upright with the front toward you.
Component replacement procedures
77
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