HP Classmate, Руководство по техническому обслуживанию и ремонту

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System board
NOTE: The system board spare part kit includes replacement thermal material.
Description Spare part number
System board with Celeron N2806 processor (includes replacement thermal material) 778814-001
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.
4. Remove the bottom cover (see Bottom cover on page 22 ).
5. Remove the battery (see Battery on page 40 ).
6. Remove the hard drive (see Hard drive on page 37 ).
7. Remove the keyboard (see Keyboard on page 28 ) and disconnect the touchpad cable from the
connector located under the keyboard.
When replacing the system board, be sure to remove the following components from the defective system
board and install on the replacement system board:
● Memory module (see Memory module on page 24 )
● WLAN/Bluetooth module (see WLAN/Bluetooth combo card on page 26 )
● Heat sink (see Heat sink on page 33 )
Remove the system board:
1. Disconnect the following cables from the system board:
(1) : Wide flat ribbon cable
(2) : Power connector cable
(3) : Thin flat ribbon cable (after removing tape on top)
(4) : Hard drive cable (after removing tape on top)
(5) : Display cable
42 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts