Dell Inspiron 14 5420 Service Manual

Also see for Inspiron 14 5420: Setup and specifications

I/O boardRemoving the I/O boardPrerequisites1. Follow the procedure in Before working inside your computer.NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside yourcomputer.2. Remove the base cover.3. Remove the heat sink.About this taskThe following image(s) indicate the location of the I/O board and provides a visual representation of the removal procedure.Steps1. Peel off the tape that secures the I/O-board cable-connector latch to the system board.2. Open the latch and disconnect the I/O-board cable from the system board.3. Open the latch and disconnect the I/O-board cable from the I/O board.4. Lift the I/O-board cable off the system board.5. Open the latch and disconnect the fingerprint-reader cable from the I/O board.NOTE: This step is only applicable to computers shipped with a fingerprint reader.6. Remove the two screws (M2x3) that secure the I/O board to the palm-rest and keyboard assembly.7. Lift the I/O board off the palm-rest and keyboard assembly.Installing the I/O boardPrerequisitesIf you are replacing a component, remove the existing component before performing the installation process.Removing and installing components 33