HP ProBook 6445b - Notebook PC, Maintenance And Service Manual

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4–38 Maintenance and Service Guide
Removal and replacement procedures
TouchPad
✎
The TouchPad spare part kit includes a TouchPad board cable and TouchPad button board cable.
Before removing the TouchPad, 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 mass storage device cover (see “Mass storage device” on page 4-11 ).
6. Remove the palm rest (see “Palm rest” on page 4-36 ).
Remove the TouchPad:
1. Lift the rear edge of the TouchPad
1
, and swing it up and forward until it rests upside down on the computer.
2. Release the ZIF connector to which the TouchPad button board cable is attached, and then disconnect the
TouchPad button board cable
2
from the TouchPad board.
3. Release the ZIF connector to which the TouchPad cable is attached, and then disconnect the TouchPad cable
3
from the system board.
Reverse this procedure to install the TouchPad.
Description Spare part number
For use only with HP Compaq 6545b computer models 583275-001
For use only with HP Compaq 6540b computer models 593866-001
For use only with HP Compaq 6445b computer models 583276-001
For use only with HP Compaq 6440b computer models 593867-001