HP ProBook 5330m Notebook PC Maintenance and Service Guide

Activity button board
Description Spare part number
Activity button board (includes cable) 650393-001
Before removing the activity 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 37).
5. Remove the service access cover (see
Service access cover on page 39).
6. Remove the keyboard (see
Keyboard on page 52).
7. Remove the fan (see
Fan on page 55).
8. Remove the top cover (see
Top cover on page 57).
Remove the activity button board:
1. Position the top cover upside down on a flat surface, with the front toward you. The activity
button board is located at the top left of the top cover.
2. Remove the T8 2.5x4.0 screw (1) and lift the activity button board (2) straight up from the top
cover.
Reverse this procedure to install the activity button board.
62 Chapter 4 Removal and replacement procedures