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Inspiron 15 3521 Service Manual

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Removing the palm-rest and keyboard assembly

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the secure digital card.
  3. Remove the base cover.
  4. Remove the memory module.
  5. Remove the M.2 2230 solid-state drive or the M.2 2280 solid-state drive, whichever applicable.
    NOTE: This procedure applies only to systems shipped with a M.2 solid-state drive installed.
  6. Remove the 2.5-inch hard-disk drive, if applicable.
    NOTE: This procedure applies only to systems shipped with a 2.5-inch hard-disk drive installed.
  7. Remove the wireless card.
  8. Remove the speakers.
  9. Remove the 3-cell battery or the 4-cell battery, whichever applicable.
  10. Remove the display assembly.
  11. Remove the touchpad.
  12. Remove the I/O daughter-board flexible flat cable.
  13. Remove the I/O daughter-board.
  14. Remove the power-adapter port.
  15. Remove the power button or the power button with optional fingerprint reader, whichever applicable.
  16. Remove the system board.

About this task

NOTE: The system board can be removed with the system board thermal plate attached to it in order to simplify the procedure and preserve the thermal bond between the system board and system board thermal plate.
NOTE: The palm-rest and keyboard assembly cannot be further disassembled once all the pre-removal parts procedures are completed. If the keyboard is malfunctioning and is required to be replaced, replace the entire palm-rest and keyboard assembly.

The image below shows the palm-rest and keyboard assembly after the pre-removal parts procedures have been performed for any palm-rest and keyboard assembly replacement.

Image of palm-rest and keyboard assembly

Steps

After performing the pre-requisites, you are left with the palm-rest and keyboard assembly.

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