Keyboard-controller boardRemoving the keyboard-controller boardPrerequisites1. Follow the procedure in Before working inside your computer.2. Remove the base cover.3. Remove the battery.About this taskNOTE: The keyboard-controller board is only required for computers that are shipped with a 4-zone keyboard.Steps1. Open the latch and disconnect the keyboard-backlight cable from the keyboard-controller board.2. Open the latch and disconnect the keyboard-controller board cable from the keyboard-controller board.3. Remove the screw (M2x2) that secures the keyboard-controller board to the palm-rest and keyboard assembly.4. Lift the keyboard-controller board off the palm-rest and keyboard assembly.Installing the keyboard-controller boardPrerequisitesIf you are replacing a component, remove the existing component before performing the installation process.About this taskNOTE: The keyboard-controller board is only required for computers that are shipped with a 4-zone keyboard.Removing and installing Field Replaceable Units (FRUs) 61