HP ProBook 6550b HP ProBook 6455b, 6555b, 6450b,and 6550b Notebook PCs - Maint - Page 115

Palm rest Description For use only on computer models equipped with a 15.6-in display assembly and a fingerprint reader (includes fingerprint reader board and cable) For use only on computer models equipped with a 15.6-in display assembly but not a fingerprint reader For use only on computer models equipped with a 14.0-in display assembly and a fingerprint reader (includes fingerprint reader board and cable) For use only on computer models equipped with a 14.0-in display assembly but not a fingerprint reader Spare part number 613339-001 613340-001 613338-001 613337-001 Before removing the palm rest, 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 79). 5. Remove the mass storage device (see Mass storage device on page 83). Remove the palm rest: 1. Turn the computer upside down, with the front toward you. 2. Remove the two rubber screw covers (1). The rubber screw covers are included in the Rubber Kit, spare part number 613459-001. 3. Remove the four slotted Torx T8M2.5×7.0 screws (2) that secure the palm rest to the computer. 4. Turn the computer display-side up, with the front toward you. 5. Open the computer as far as possible. Component replacement procedures 107