HP ProBook 470 G1, Руководство по техническому обслуживанию и ремонту

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When installing the power button board, insert the bottom of the board into the slot, and then rotate
board down into place. If the cable is connected to the board, it blocks the view of the tab on the
board and the slot it inserts into.
Function board
Description Spare part number
Function board 721943-001
Before removing the function 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 34 ).
5. Remove the following components:
a.
Service door (see Service door on page 35 )
b. Keyboard (see Keyboard on page 45 )
c. Optical drive ( Optical drive on page 39 )
d. Top cover (see Top cover on page 47 )
Remove the function board:
1. Position the top cover upside-down.
2. Remove the Phillips PM2.0×3.0 screw (1) that secures the function board to the top cover.
3. Lift cable side of the board slightly, and then pull the board toward the right (inside of cover) until
the left side of the board comes out from under the holder (2).
54 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts