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Inspiron 3505 Service Manual

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Installing the system board (Cirrus Logic audio controller)

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

NOTE:This procedure only applies if you're installing a system board with a Cirrus Logic CS8409 audio controller into your computer.

The following images indicate the connectors on the system board.

Image: System board connectors

  1. Power-adapter port connector
  2. Speaker connector
  3. Keyboard connector
  4. Keyboard-backlight connector
  5. Touchpad connector
  6. Battery connector
  7. Hard-drive connector
  8. I/O-board connector
  9. Fingerprint-reader connector
  10. Power-button connector

The following images indicate the location of the system board and provides a visual representation of the installation procedure.

Image:Installing the system board

Steps

  1. Place the system board on the palm-rest and keyboard assembly.
  2. Align the screw holes on the system board to the screw holes on the palm-rest and keyboard assembly.
  3. Replace the two screws (M2x4) that secure the system board to the palm-rest and keyboard assembly.
  4. Adhere the Mylar over the system-board screw that secures the system board to the palm-rest and keyboard assembly.
  5. Connect the speaker cable to the system board.
  6. Connect the keyboard cable to the connector on the system board and close the latch.
  7. Connect the keyboard-backlight cable to the connector on the system board and close the latch, if applicable.
  8. Connect the touchpad cable to the connector on the system board and close the latch.
  9. Connect the hard-drive cable to the connector on the system board and close the latch, if applicable.
  10. Connect the I/O-board cable to the connector on the system board and close the latch.
  11. Connect the fingerprint-reader cable to the connector on the system board and close the latch, if applicable.
  12. Connect the fan cable to the system board.
  13. Connect the power-adapter port cable to the system board.

Next steps

  1. Install the display assembly.
  2. Install the wireless card.
  3. Install the heat sink.
  4. Install the fan.
  5. Install the memory module.
  6. Install the M.2 2230 solid-state drive, if applicable.
  7. Install the M.2 2280 solid-state drive, if applicable.
  8. Install the base cover.
  9. Follow the procedure in After working inside your computer.

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