HP PROBOOK 4520S, Руководство по техническому обслуживанию и ремонту

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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 55 ).
5. Disconnect the power button cable from the system board (see Power button board on page 63 ).
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.
Component replacement procedures 65