Dell Inspiron 14 5420 Service Manual - Page 39
I/O board, Removing the I/O board
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I/O board Removing the I/O board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Enter Service Mode. 3. Remove the base cover. 4. Remove the display assembly. About this task The following image(s) indicate the location of the I/O board and provides a visual representation of the removal procedure. Steps 1. Remove the two screws (M2.5x4) that secure the left display hinge to the I/O board. 2. Pry open the left display hinge at an angle of 90 degrees. 3. Lift the I/O-board cable-connector latch and disconnect the I/O-board cable from the I/O board. 4. Lift the power button with fingerprint-reader cable-connector latch and disconnect the power button with fingerprint-reader cable from the I/O board. NOTE: This step is only applicable for computers shipped with the optional fingerprint reader. 5. Remove the screw (M2x3) that secures the I/O board to the palm-rest and keyboard assembly. 6. Disconnect the coin-cell battery cable from the I/O board. 7. Lift the I/O board off the palm-rest and keyboard assembly. Removing and installing components 39