HP ProBook 6455b, 6555b, 6450b and 6550b Notebook PCs Maintenance and Service Guide

Power button board
Description Spare part number
Power button board (includes cable) 613310-001
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 74).
5. Remove the switch cover (see
Switch cover on page 97)
Remove the power button board:
1. Turn the switch cover upside down, with the rear toward you.
2. Release the ZIF connector to which the power button board cable is attached, and then
disconnect the power button board cable (1) from the capacitive board.
3. Remove the two Phillips PM2.0×3.0 screws (2) that secure the power button board to the switch
cover.
4. Remove the power button board (3) and cable.
Reverse this procedure to install the power button board.
Component replacement procedures 99