Labels: DOCUMENTED = taken from HP's manual; PROPOSED = our own joining or ordering of HP's directions, not an HP instruction; UNPERFORMED = a suggested check that has not been carried out.
Applies to
HP ProBook 455 G3. Confirm the exact model on the service label before starting.
HP ProBook 455 G3 Notebook PC speaker assembly replacement. HP prints this procedure on printed page 70 of its maintenance and service guide, and the spare-part table for this part is on printed page 70.
tools and parts
- Screwdrivers and a non-marking pry tool as HP lists for this procedure
- Static-safe work surface
828420-001- Speaker assembly. Source: printed page 70.
preparation
Save your work and shut the computer down through the operating system, unplug AC power and every external device, and work on a clean, grounded, ESD-protected surface while sorting each screw by its original location. Handle every cable by its connector and put each one back in its own place during reassembly.
- Power the machine down. If you are unsure whether the machine is off or in Hibernation, turn the machine on, and after that shut it down through the operating system. (printed page 32).
- Detach every external device wired to the machine. (printed page 32).
- Cut the power by pulling the cord out of the wall outlet, and after that unplugging the AC adapter from the machine. (printed page 32).
- Take the battery out (the Battery section is on page 32). (printed page 33).
replacement
- Take the following parts out: a. Service doors (the Service doors section is on page 33). b. Optical drive (the Optical drive section is on page 35) c. Hard drive (the Hard drive section is on page 37) d. Keyboard (the Keyboard section is on page 43) e. Top cover (the Top cover section is on page 48) f. Main board (the main board section is on page 66) (printed page 70).
- Place the machine upright. (printed page 70).
- Detach the speaker lead from the main board (1). (printed page 70).
- Undo the Phillips PM2.0×5.0 fastener (2) that holds the left speaker to the machine. (printed page 70).
- Take the speakers from the top cover (3). (printed page 71).
- Fit the replacement part by working back through the printed removal steps (printed page 71).
Part numbers in our catalog
Check each part page for its source and variant notes before ordering.
Manufacturer manual
HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-probook-455-g3-speaker-assembly-replacement-p70