HP ProBook 6540b HP ProBook 6545b, 6540b, 6445b and 6440b Notebook PC - Mainte - Page 99

Removal and replacement procedures Switch cover ✎ The switch cover spare part kit includes the capacitive board and cable. Description For use only with HP Compaq 6545b computer models For use only with HP Compaq 6540b computer models For use only with HP Compaq 6445b computer models For use only with HP Compaq 6440b computer models Spare part number 583268-001 593860-001 583268-001 593861-001 Before removing the switch cover, 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 4-7). 5. Remove the keyboard (see "Keyboard" on page 4-23). Remove the switch cover: 1. Turn the computer upside down, with the front toward you. 2. Remove the three Phillips PM2.0×3.0 screws that secure the switch cover to the computer. 4-30 Maintenance and Service Guide