HP ELITEBOOK 840 G4, Руководство по техническому обслуживанию и ремонту

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Power button board
Description Spare part number
Power button board assembly 914382-001
Before removing the power button 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 32 ).
5. Remove the battery (see Battery on page 36 ).
6. Remove the internal base plate (see Internal base plate on page 50 ).
7. Rotate the right display hinge upward (see Display assembly on page 67 ).
NOTE: The power button board sits under the right display hinge. You do not have to remove the
display to remove the board, but you do have to rotate the right display hinge upward to gain access.
Remove the power button board:
1. Disconnect the cable from the system board (1).
2. Remove the Phillips broadhead M2.0×2.0 screw (2) that secures the power button board to the
computer.
3. Push the retention clip so it disengages the board (3).
Component replacement procedures 73