HP ProBook 4430s, 4431s, 4330s and 4331s Notebook PCs - Maintenance and Service Guide

Keyboard
NOTE: For a detailed list of available keyboards, see Sequential part number listing on page 34.
Description Spare part number
Keyboard 646365-xxx
Before removing the keyboard, 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 48).
5. Remove the bottom door (see
Bottom door on page 50).
Remove the keyboard:
1. Position the computer upside-down with the front toward you.
2. Remove the Phillips PM2.5×6.0 screw (1) that secures the keyboard to the computer.
3. Remove the Phillips PM2.5×4.0 screw (2) that secures the keyboard to the computer.
64 Chapter 4 Removal and replacement procedures