HP Dv4 1540us Service Guide - Page 80

Keyboard Description Keyboards For use with standard computer models For use in blue-colored computer models only in the United States For use only with bronze-colored computer models For use in blue-colored computer models Spare part number 486901-xxx 507319-001 508119-xxx 508120-xxx NOTE: For a comprehensive list of keyboard spare part numbers, see the Sequential part number listing on page 36. Before removing the keyboard, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 55). Remove the keyboard: 1. Turn the computer upside down, with the front toward you. 2. Remove the two Phillips PM2.5×17.0 screws (1), and the Phillips PM2.5×9.0 screw (2) that secure the keyboard to the computer. 3. Turn the computer display-side up, with the front toward you. 4. Open the computer as far as possible. 72 Chapter 4 Removal and replacement procedures