HP ProBook 4545s, Руководство по техническому обслуживанию и ремонту

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USB board
Description Spare part number
USB board Part of Spare Cable kit 683477-001
Before removing the USB board, 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. Metal heat shield (see Metal heat shield on page 51 ).
d. Keyboard (see Keyboard on page 47 )
e. Top cover (see Top cover on page 58 ).
Remove the USB board:
1. Position the computer upright with the front toward you.
2. Disconnect the USB board cable from the system board (1) and remove the cable (2) from the
cable run.
3. Remove the Phillips PM2.5×5.0 screw (3) that secures the USB board to the computer.
Component replacement procedures 69