Power Button Board - HP ELITEBOOK 840 G4 Maintenance And Service Manual

Power button board

Description
Power button board assembly
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
5. Remove the battery (see
6. Remove the internal base plate (see
7. Rotate the right display hinge upward (see
NOTE:
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).
Bottom cover on page
Battery on page
The power button board sits under the right display hinge. You do not have to remove the
32).
36).
Internal base plate on page
Display assembly on page
Spare part number
914382-001
50).
67).
Component replacement procedures 73