HP ProBook 4520s HP ProBook 4520s Notebook PC and HP ProBook 4720s Notebook PC - Page 68

Speakers, Remove the speakers from the 17.3-in computer

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Speakers Description For use in computers with 17.3-in displays For use in computers with 15.6-in displays Spare part number 598686-001 598685-001 Before removing the speakers, 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 50). 5. Disconnect the power button cable from the system board (see Power button board on page 58). Remove the speakers from the 17.3-in computer: 1. Remove the two PM2.5x6.0 screws (1) that secure the speakers to the top cover. 2. Disconnect the speaker cable from the connector (2) on the system board. 60 Chapter 4 Removal and replacement procedures

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Speakers
Description
Spare part number
For use in computers with 17.3-in displays
598686-001
For use in computers with 15.6-in displays
598685-001
Before removing the speakers, 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
50
).
5.
Disconnect the power button cable from the system board (see
Power button board
on page
58
).
Remove the speakers from the 17.3-in computer:
1.
Remove the two PM2.5x6.0 screws
(1)
that secure the speakers to the top cover.
2.
Disconnect the speaker cable from the connector
(2)
on the system board.
60
Chapter 4
Removal and replacement procedures