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HP ProBook 4310s Notebook PC - Removing and Replacing the Switch Cover

Introduction

This document is provided to assist in removing and replacing the switch cover for the HP ProBook 4310s Notebook PC.

Minimum skill level

The End-User should possess product-specific knowledge and technical skill on how to service the system, and have familiarity with the operating system.

Tools required

  • Small, Phillips-head (P00 and P1) screwdrivers
  • Small Torx T8 screwdriver

Parts required

note:
Part numbers are subject to change.
The replacement part number will vary depending on the switch cover that is being replaced. If a part is listed as "Yes" under "Requires Return" then the defective part needs to be returned to HP. Click here for more information on returning parts to HP.
Description
Part Number
Requires Return
Switch cover (Black) - Includes LED board and cable
577207-001 (Modified)
Yes
Switch cover (Red) - Includes LED board and cable
577208-001 (Modified)
Yes
note:
For customers in countries/regions with RoHS legislation* (e.g. EU, China, etc.) restricting the use of hazardous substances in electrical equipment. The use of the Original Spare part is regulated by RoHS legislation. If your unit contains a part that is labelled with the Modified Spare number, the Modified Spare must be ordered as the replacement part. If your unit contains a part that is labelled with the Original Spare number, please order the Original Spare as the replacement part. In this case either the Original Spare or the Modified Spare may be shipped which will not affect performance or functionality of the unit.

Summary of instructions

To view a video demonstrating the procedure for removing the switch cover, click on the link below. Or use the product video listing on the HP Services Media Library (Click here to go to HP Service Media Library), then select Switch Cover from the menu on the upper left hand side of the screen.
Click here to view the switch cover removal video (right-click on the link to open in a new window/tab).

Switch cover removal

  1. Review the safety considerations before performing the steps listed below by clicking on the following link:
      caution:
    Failure to comply with the precautions could result in damage to your product or loss of data.
  2. Remove the two 7-mm T8 Torx screws from the bottom of the notebook that secure the switch cover to the base enclosure.
  3. Remove the 3-mm P00 Phillips broad-head screws inside the battery bay.
  4. Remove the two 4-mm P1 Phillips-head screws inside the battery bay.
  5. Remove the two 7-mm T8 Torx screws marked with a keyboard icon on either side of the memory compartment that secure the keyboard to the base enclosure.
  6. Turn the notebook right side up and open the display panel fully.
  7. Pull up on the outer edges of the switch cover to detach it from the base enclosure and rotate it away from the top edge of the keyboard. Do not remove the switch cover.
  8. Pull up on the outer edges of the keyboard to detach it from the base enclosure and slide it toward the front of the notebook to expose the button board ribbon cable and ZIF connector.
  9. Disconnect the speaker cable from its connector on the system board and remove the speaker cable from the routing channel on the top cover.
  10. Using minimal force, lift the locking bar up on the ZIF connector and disconnect the button board ribbon cable from the system board and peel the button board ribbon cable away from the top cover.
    note:
    Use care to prevent damaging the ZIF connector and ribbon cable.
  11. Remove the switch cover.

Switch cover replacement

  1. Place the switch cover onto the base enclosure so that the face of the switch cover is leaning against the display assembly.
  2. Insert the button board ribbon cable into the ZIF connector on the system board.
  3. Push the locking bar down to lock the button board ZIF connector.
  4. Align the button board ribbon cable with its routing channel on the top cover and press down on the length of the cable to adhere it to the top cover.
  5. Connect the speaker cable into its connector on the system board and route the speaker cable through the routing channel on the top cover.
  6. Connect the speaker cable into its connector on the system board and route the speaker cable through the routing channel on the top cover.
  7. Press along the edges of the keyboard to snap it into place.
  8. Flip the switch cover over and toe it into position on the top cover.
  9. Press along the entire length of the switch cover to snap it into place.
  10. Close the display panel and turn the notebook upside down.
  11. Replace the two 7-mm T8 Torx screws marked with a keyboard icon on either side of the memory compartment that secure the keyboard to the base enclosure.
  12. Replace the two 4-mm P1 Phillips head screws inside the battery bay.
  13. Replace the 3-mm P00 Phillips broad-head screw inside the battery bay.
  14. Replace the two 7-mm T8 Torx screws from the bottom of the notebook that secure the switch cover to the base enclosure.

Parts return


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