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Compaq NX8220
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HP Compaq NX8220 - Page 178
216 pages
Manual
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A–4
Maintenance and Serv
ice Gui
de
Connec
tor P
in
Assignments
Ta
b
l
e
A
-
4
Serial
Pin
Signal
Pin
Signal
1
Carrier detect
6
Data set ready
2
Receiv
e data
7
Ready to send
3
T
r
ansmit data
8
Clear to send
4
Data terminal ready
9
Ring indicator
5G
r
o
u
n
d
177
179
Table of Contents
Main Page
Default Chapter
1
Maintenance and Service
1
Table of Contents
3
1 Product Description
5
Features
6
Resetting the Notebook
9
Power Management
9
External Components
10
Rear Panel Components
15
Standard Keyboard Components
17
Bottom Components
22
Design Overview
24
2 Troubleshooting
25
Computer Setup
25
Selecting from the File Menu
27
Selecting from the Security Menu
28
Selecting from the Tools Menu
29
Selecting from the Advanced Menu
30
Troubleshooting Flowcharts
31
Flowchart 2.1—Initial Troubleshooting
33
Flowchart 2.2—No Power, Part
34
Flowchart 2.3—No Power, Part
35
Flowchart 2.4—No Power, Part
36
Flowchart 2.5—No Power, Part
37
Flowchart 2.6—No Video, Part
38
Flowchart 2.7—No Video, Part
39
Flowchart 2.9—No Operating System (Os) Loading
41
Flowchart 2.13—No os Loading, Diskette Drive
45
3 Illustrated Parts Catalog
53
Serial Number Location
53
Notebook Major Components
54
Miscellaneous Plastics Kit
66
Miscellaneous Cable Kit
67
Mass Storage Devices
68
Miscellaneous (Not Illustrated)
69
Sequential Part Number Listing
71
Removal and Replacement Preliminaries
79
Tools Required
79
Service Considerations
80
Preventing Damage to Removable Drives
81
Preventing Electrostatic Damage
82
Packaging and Transporting Precautions
83
Workstation Precautions
84
Grounding Equipment and Methods
85
5 Removal and Replacement Procedures
87
Serial Number
88
Disassembly Sequence Chart
89
Preparing the Notebook for Disassembly
91
Hard Drive
93
Notebook Feet
96
Multibay II Device
97
External Memory Module
98
Bluetooth Board
101
Keyboard
103
Switch Cover
108
RTC Battery
112
Thermal Plate
113
Heat Sink
115
Processor
118
TPM Security Card
120
Internal Memory Module
121
Touchpad
123
Mini PCI Communications Card
126
Display Assembly
128
Top Cover
132
Modem Board
136
System Board
138
System Board Frame
145
Push Button Module
149
Serial Connector Module
151
Audio Board
153
6 Specifications
155
Hard Drives
160
System Dma
168
System Interrupts
169
System Memory Map
174
Connector Pin Assignments
175
Universal Serial Bus
177
External Monitor
179
Conductor Power Cord Set
183
General Requirements
184
Screw Listing
187
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