HP ProBook 4545s, Maintenance And Service Manual

Page: 66 / 139

Top cover
Description Spare part number
For use in models with a fingerprint reader. Includes TouchPad assembly with cable and ESD
board with screw. 683506-001
For use in models without a fingerprint reader. Includes TouchPad assembly with cable, ESD
board with screw, fingerprint reader dummy with screws. 683507-001
Before removing the top cover, 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 following components:
a. Bottom door (see Bottom door on page 38 ).
b. Optical drive (see Optical drive on page 41 ).
c. Hard drive (see Hard drive on page 45 ).
d. Keyboard (see Keyboard on page 47 ).
Remove the top cover:
1. Position the computer upside-down with the front toward you.
58 Chapter 4 Removal and replacement procedures