HP ProBook 4420s HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Mai - Page 5

Table of contents - touchpad

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Table of contents 1 Product description ...1 2 External component identification ...9 Identifying hardware ...9 Top components ...10 TouchPad ...10 Lights ...11 Buttons, speakers, switches, and fingerprint reader (select models only 12 Keys ...13 Front components ...14 Right-side components ...15 Left-side components ...16 Bottom components ...17 Display ...18 Wireless antennas (select models only 19 Additional hardware components ...20 3 Illustrated parts catalog ...21 Serial number label location ...21 Computer major components ...22 Display assembly components ...29 Plastics Kit ...31 Cable kit ...32 Mass storage devices ...33 Miscellaneous parts ...34 Sequential part number listing ...36 4 Removal and replacement procedures ...43 Preliminary replacement requirements 43 Tools required ...43 Service considerations ...43 Plastic parts ...43 Cables and connectors 44 Drive handling 44 Grounding guidelines ...45 Electrostatic discharge damage 45 Packaging and transporting guidelines 46 v

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Table of contents
1
Product description
........................................................................................................................................
1
2
External component identification
................................................................................................................
9
Identifying hardware
.............................................................................................................................
9
Top components
.................................................................................................................................
10
TouchPad
..........................................................................................................................
10
Lights
.................................................................................................................................
11
Buttons, speakers, switches, and fingerprint reader (select models only)
.........................
12
Keys
...................................................................................................................................
13
Front components
..............................................................................................................................
14
Right-side components
.......................................................................................................................
15
Left-side components
.........................................................................................................................
16
Bottom components
...........................................................................................................................
17
Display
................................................................................................................................................
18
Wireless antennas (select models only)
.............................................................................................
19
Additional hardware components
.......................................................................................................
20
3
Illustrated parts catalog
...............................................................................................................................
21
Serial number label location
...............................................................................................................
21
Computer major components
.............................................................................................................
22
Display assembly components
...........................................................................................................
29
Plastics Kit
..........................................................................................................................................
31
Cable kit
.............................................................................................................................................
32
Mass storage devices
.........................................................................................................................
33
Miscellaneous parts
............................................................................................................................
34
Sequential part number listing
............................................................................................................
36
4
Removal and replacement procedures
.......................................................................................................
43
Preliminary replacement requirements
...............................................................................................
43
Tools required
....................................................................................................................
43
Service considerations
.......................................................................................................
43
Plastic parts
.......................................................................................................
43
Cables and connectors
.....................................................................................
44
Drive handling
...................................................................................................
44
Grounding guidelines
.........................................................................................................
45
Electrostatic discharge damage
........................................................................
45
Packaging and transporting guidelines
.............................................
46
v