HP ProBook 4740s Notebook PC Maintenance and Service Guide

Top cover
NOTE: Top cover spare part kits include the touchpad assembly.
Description Spare part number
Top cover with a fingerprint reader (includes fingerprint reader assembly) 684616-001
Top cover without a fingerprint reader 684617-001
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 40).
5. Remove the following components:
a. Bottom door (see
Bottom door on page 41).
b. Memory modules (see
Memory modules on page 48)
c. Keyboard (see
Keyboard on page 52)
Remove the top cover:
1. Position the computer upside-down with the front toward you.
54 Chapter 4 Removal and replacement procedures