HP ProBook 4320t, Maintenance And Service Manual

Page: 81 / 108

USB connector board
Description Spare part number
USB board with cable 599524-001
Before removing the USB connector assembly, follow these steps:
1. Shut down the computer.
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 36 ).
5. Remove the following components:
a. Switch cover (see Switch cover on page 37 )
b. Keyboard (see Keyboard on page 39 )
c. DVD-ROM drive (see DVD-ROM drive on page 43 )
d. Speakers (see Speakers on page 46 )
e. Palm rest (see Palm rest on page 48 )
f. Solid-state module (see Solid-state module on page 50 )
g. Display assembly (see Display assembly on page 62 )
h. Top cover (see Top cover on page 67 )
i. System board (see System board on page 71 )
Remove the USB connector assembly:
1. Position the computer right-side up with the right side toward you.
2. Release the USB connector board cable from the base enclosure clips and routing channel (1) .
Component replacement procedures 73