HP (Hewlett-Packard) BJ840USABA Laptop User Manual


 
Power button board
Description Spare part number
Power button board (includes cable) 482964-001
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 battery (see
Battery on page 50).
5. Remove the keyboard (see
Keyboard on page 65).
6. Remove the switch cover (see
Switch cover on page 74).
Remove the power button board:
1. Turn the switch cover upside down, with the front toward you.
2. Remove the Phillips PM2.0×4.0 screw (1) that secures the power button board to the switch cover.
3. Lift the right side of the power button board (2) until it rests at an angle.
4. Remove the power button board (3) by sliding the board to the right at an angle.
Reverse this procedure to install the power button board.
76 Chapter 4 Removal and replacement procedures