HP ProBook 4420s HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Mai - Page 73

system board., Release the TouchPad cable connector

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3. Slide the palm rest to the right (2), and then turn it over from the front edge (3) until it rests upside down on the top cover. 4. Release the fingerprint reader connector (1), and then remove the fingerprint reader cable (2) from the system board. 5. Release the TouchPad cable connector (3), and then remove the TouchPad cable (4) from the system board. 6. Remove the palm rest (5). Reverse this procedure to install the palm rest. Component replacement procedures 65

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3.
Slide the palm rest to the right
(2)
, and then turn it over from the front edge
(3)
until it rests
upside down on the top cover.
4.
Release the fingerprint reader connector
(1)
, and then remove the fingerprint reader cable
(2)
from the system board.
5.
Release the TouchPad cable connector
(3)
, and then remove the TouchPad cable
(4)
from the
system board.
6.
Remove the palm rest
(5)
.
Reverse this procedure to install the palm rest.
Component replacement procedures
65