HP ProBook 4320s Notebook PC HP ProBook 4321s ... - Warranty Life

Top coverDescriptionSpare part numberTop coverFor use with 33.8-cm (13.3-in) displays 599569-001For use with 35.6-cm (14.0-in) displays 599570-001Before removing the top cover, follow these steps:1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turnthe 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 outletand then unplugging the AC adapter from the computer.4. Remove the battery (see Battery on page 51).5. Remove the following components:a. Switch cover (see Switch cover on page 53)b. Keyboard (see Keyboard on page 55)c. Speakers (see Speakers on page 62)d. Optical drive (see Optical drive on page 59)e. Palm rest (see Palm rest on page 66)Remove the top cover:1. Position the computer right-side up with the front toward you.Component replacement procedures 91