8.Remove the screw (1) that secures the USB to the computer, disconnect the cable (2) from the system board and then, remove the device (3) from the computer.

Reverse this procedure to install the system board.

USB connector assembly

NOTE: The USB connector assembly is included in the Cable Kit, spare part number 603188-001 for computers with 17.3-in displays and in 599807-001 for computers with 15.6-in displays.

Before removing the USB connector assembly, 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 55).

5.Remove the switch cover and keyboard (see Switch cover and keyboard on page 56).

6.Remove the optical drive (see Optical drive on page 61).

7.Remove the power button board cable (see Power button board on page 63).

8.Remove the speakers (see Speakers on page 65).

Component replacement procedures 117

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Image 127
HP 4520S, 4720S manual USB connector assembly

4720S, 4520S specifications

The HP ProBook 4720s is a well-engineered business laptop that combines performance, durability, and affordability, making it suitable for professionals and small business owners alike. Introduced as part of the HP ProBook series, this model stands out for its robust build quality and essential features tailored to meet the demands of various work environments.

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