HP EliteBook 755 G3 USB/audio board replacement

Step-by-step HP EliteBook 755 G3 USB/audio board replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

Part you need836619-001HP USB/audio board (EliteBook 850) for the HP EliteBook 755 G3
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On this page
  1. Applies to
  2. tools and parts
  3. preparation
  4. replacement
  5. Part numbers in our catalog
  6. Manufacturer manual
Source: steps rewritten in our own words (no more than 8 words in a row copied; part numbers, screw sizes and warnings kept as printed) from HP's Maintenance and Service Guide (PDF, printed pages 39–70). Not bench-tested. We have not performed this repair; keep HP's manual open for its illustrations. Scope restrictions below are part of the guide: do not apply it to other models, generations or configurations. Service manuals are written for trained technicians; work at your own risk.

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 EliteBook 755 G3. Confirm the exact model on the service label before starting.

HP EliteBook 755 G3 Notebook PC USB/audio board 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
  • 836619-001 - USB/audio board for HP 755. 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.

  1. 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 39).
  2. Detach every external device wired to the machine. (printed page 39).
  3. Cut the power by pulling the cord out of the wall outlet, and after that unplugging the AC adapter from the machine. (printed page 39).
  4. Take the bottom cover off (the Bottom cover section is on page 34). (printed page 39).
  5. Take the battery out (the Battery section is on page 39). (printed page 40).
  6. Take the following parts out: a. Keyboard (the Keyboard section is on page 50) b. Hard drive (the Hard drive section is on page 40) c. Internal base plate (the Internal base plate section is on page 55) (printed page 61).

replacement

  1. Detach the lead from the board (1). (printed page 70).
  2. Take the 2 Phillips PM2.5×5.0 fasteners (2) that hold the USB/audio board to the machine. (printed page 70).
  3. Lift the board off the top cover (3). (printed page 70).
  4. Fit the replacement part by working back through the printed removal steps (printed page 70).

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-elitebook-755-g3-usb-audio-board-replacement-p70

Key facts

HP document part number
842508-001
Model
HP EliteBook 755 G3
Release year
2015
Screen size
15.6"
Printed pages
39–70

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