Compaq nx9420 - Notebook PC Spezifikationen Seite 54
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2–26 Maintenance and Service Guide
Troubleshooting
Flowchart 2.16—No Audio, Part 2
YN
Continued from
“Flowchart
2.15—No Audio,
Part 1.”
Reload
audio drivers.
Audio
driver in OS
configured?
Audio?
Y
Y
YN
N
N
Correct
drivers for
application?
Connect to
external
speaker.
Load drivers and
set configuration
in OS.
Audio? Done
Replace audio
board and
speaker
connections
in computer
(if applicable).
1. Replace internal speakers.
2. Replace audio board (if applicable).
3. Replace system board.
- Maintenance and Service 1
- Contents 3
- Product Description 7
- 1.1 Features 8
- 1.2 Resetting the Computer 10
- 1.3 Power Management 11
- 1.4 External Components 12
- Right-Side Components 14
- Table 1-2 15
- Table 1-3 16
- Left-Side Components 16
- Rear Panel Components 18
- Table 1-4 19
- Standard Keyboard Components 20
- Table 1-5 21
- Table 1-6 22
- Top Components 22
- Pointing Device Components 24
- Table 1-7 25
- Table 1-8 26
- Bottom Components 26
- 1.5 Design Overview 28
- Troubleshooting 29
- Computer Setup Defaults 31
- Computer Setup Menus 32
- Table 2-2 33
- Security Menu 33
- Table 2-4 35
- System Configuration Menu 35
- Table 2-5 38
- (if applicable) 46
- Connection 58
- Illustrated Parts Catalog 59
- 3.2 Computer Major Components 60
- Major Components 60
- Table 3-1 61
- Table 3-2 75
- Display Assembly Components 75
- 3.4 Plastics Kit 76
- 3.5 Cable Kit 77
- 3.6 Mass Storage Devices 78
- Table 3-6 79
- Spare Part Information 79
- Table 3-7 82
- Preliminaries 93
- 4.2 Service Considerations 94
- Removal and Replacement 101
- Procedures 101
- Disassembly Sequence Chart 102
- (Continued) 103
- Disassembly 104
- Removing the Battery Pack 105
- 5.4 Hard Drive 106
- Removing the Hard Drive Cover 107
- Removing the Hard Drive 108
- Removing the Hard Drive Frame 109
- 5.5 Computer Feet 110
- 5.6 Bluetooth Module 111
- 5.7 External Memory Module 112
- Removing the Memory Module 113
- 5.8 Mini Card Module 114
- Removing a Mini Card Module 116
- 5.9 RTC Battery 117
- 5.10 Optical Drive 118
- Removing the Optical Drive 119
- 5.11 Keyboard 120
- Removing the Keyboard Screws 122
- Releasing the Keyboard 122
- 5.12 Internal Memory Module 124
- 5.13 TouchPad 126
- TouchPad to the computer 127
- Removing the TouchPad 128
- Removing the TouchPad Cable 129
- 5.14 Modem Module 130
- Removing the Modem Module 131
- 5.15 Switch Cover 132
- Removing the Switch Cover 133
- 5.16 LED Board 134
- 5.17 Fan Assembly 135
- 5.18 Processor Heat Sink 136
- Thermal Paste Locations 137
- 5.19 Processor 138
- Removing the Processor 139
- 5.20 Video Board Heat Sink 140
- 5.21 Video Board 144
- Removing the Video Board 145
- 5.22 Display Assembly 146
- Antenna Cables 148
- Removing the Display Assembly 149
- Spare Part Number Information 150
- Removing the Display Bezel 153
- 2 Display panel cable 157
- 3 Backlight cable 157
- Removing the Display Hingesw 158
- 5.23 Top Cover 163
- Removing the Top Cover 165
- 5.24 Speaker 166
- Removing the Speaker 167
- 5.25 System Board 168
- Removing the System Board 171
- 5.26 USB/Audio Board 175
- Removing the USB/Audio Board 176
- Specifications 181
- Table 6-2 183
- 17.0-inch, WUXGA+WVA 183
- Table 6-3 184
- 17.0-inch, WSXGA+WVA 184
- Table 6-4 185
- 17.0-inch, WXGA+WVA 185
- Table 6-5 186
- Hard Drives 186
- Table 6-6 187
- Table 6-7 188
- DVD±RW and CD-RW Combo Drive 188
- Table 6-8 190
- DVD/CD-RW Combo Drive 190
- Table 6-9 192
- System DMA 192
- Table 6-10 193
- System Interrupts 193
- Table 6-11 195
- System I/O Addresses 195
- Table 6-12 198
- System Memory Map 198
- Screw Listing 199
- Table A-2 200
- Phillips PM2.5×17.0 Screw 200
- Table A-3 201
- Table A-4 202
- Phillips PM2.5×4.0 Screw 202
- Table A-5 203
- Phillips PM2.0×4.0 Screw 203
- (Continued) 204
- Torx8 T8M2.5×9.0 Screw 208
- Table A-6 208
- Table A-7 211
- Torx8 T8M2.5×4.0 Screw 211
- Table A-8 217
- Torx8 T8M2.5×19.0 Screw 217
- Table A-9 218
- Torx8 T8M2.5×7.0 Screw 218
- Table A-10 222
- Phillips PM2.5×7.0 Screw 222
- Table A-11 225
- Table A-12 226
- Phillips PM2.0×6.0 Screws 226
- Software Backup and 227
- Recovery 227
- Backing Up the System 228
- Software Backup and Recovery 229
- Creating Recovery Discs 232
- (Highly Recommended) 232
- Performing a Recovery 233
- Recovery Partition 234
- Display Component Recycling 235
- Removing the Display Inverter 239
- Removing the Display Frame 242
- Removing the Backlight Cover 243
- Removing the Backlight Frame 245
- Removing the Backlight 246
- Releasing the LCD Panel 247
- 23. Remove the LCD panel 248
- Connector Pin Assignments 249
- Table D-2 250
- Audio-In (Microphone) 250
- Table D-3 250
- Universal Serial Bus 250
- Table D-4 251
- S-Video-Out 251
- Table D-5 252
- External Monitor 252
- Table D-6 253
- RJ-11 (Modem) 253
- Table D-7 254
- RJ-45 (Network) 254
- Power Cord Set Requirements 255
- General Requirements 256
- Country-Specific Requirements 257
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