HP EliteBook 8570w, Руководство по техническому обслуживанию и ремонту

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Power button board
Description Spare part number
Power button board 690634-001
Before removing the power button board, follow these steps:
IMPORTANT: Make special note of each screw and screw lock size and location during removal
and replacement.
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 54 ).
5. Remove the service door (see Service door on page 60 ).
6. Remove the following components:
a. Hard drive (see Hard drive on page 72 ).
b. Upgrade bay device (see Upgrade bay device on page 77 ).
c.
Keyboard (see Keyboard on page 81 ).
d. Top cover (see Top cover on page 87 ).
Remove the power button board:
1. Position the top cover upside down, with the front toward you.
2. Remove the two pieces of tape from the top of the power button board (1) .
3. Release the ZIF connector (2) for the power button board cable and then disconnect the cable (3) .
90 Chapter 4 Removal and replacement procedures