Compaq 400 320 321 420 421 620 and 621 Notebook PC and 420 and 620 Notebook PC - Page 5

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Table of contents 1 Product description ...1 2 External component identification 10 Top Components ...10 TouchPad ...10 Lights ...11 Buttons, switch, and speaker 13 Keys ...14 Front components ...16 Right-side components ...16 Left-side components ...18 Bottom components ...19 Multimedia components ...20 Wireless antennas (select models only 22 Additional hardware components 23 3 Illustrated parts catalog 24 Service tag ...24 Computer major components 26 Display assembly components 33 Plastics Kit ...35 Cables ...36 Mass storage devices ...37 Miscellaneous parts ...39 Sequential part number listing 40 4 Removal and replacement procedures 49 Preliminary replacement requirements 49 Tools required ...49 Service considerations 49 Plastic parts 49 v

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Table of contents
1
Product description
...........................................................................................................
1
2
External component identification
...................................................................................
10
Top Components
....................................................................................................................
10
TouchPad
...............................................................................................................
10
Lights
.....................................................................................................................
11
Buttons, switch, and speaker
.....................................................................................
13
Keys
......................................................................................................................
14
Front components
...................................................................................................................
16
Right-side components
............................................................................................................
16
Left-side components
...............................................................................................................
18
Bottom components
................................................................................................................
19
Multimedia components
..........................................................................................................
20
Wireless antennas (select models only)
.....................................................................................
22
Additional hardware components
............................................................................................
23
3
Illustrated parts catalog
..................................................................................................
24
Service tag
............................................................................................................................
24
Computer major components
...................................................................................................
26
Display assembly components
.................................................................................................
33
Plastics Kit
.............................................................................................................................
35
Cables
..................................................................................................................................
36
Mass storage devices
.............................................................................................................
37
Miscellaneous parts
................................................................................................................
39
Sequential part number listing
..................................................................................................
40
4
Removal and replacement procedures
............................................................................
49
Preliminary replacement requirements
.......................................................................................
49
Tools required
.........................................................................................................
49
Service considerations
.............................................................................................
49
Plastic parts
.............................................................................................
49
v