HP ProBook 6445b - Notebook PC, Руководство по техническому обслуживанию и ремонту

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Removal and replacement procedures
Maintenance and Service Guide 4–33
Switch cover
✎
The switch cover spare part kit includes the capacitive board and cable.
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 4-25 ).
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.
Description Spare part number
For use only with HP Compaq 6545b computer models 583268-001
For use only with HP Compaq 6540b computer models 593860-001
For use only with HP Compaq 6445b computer models 583268-001
For use only with HP Compaq 6440b computer models 593861-001