HP nw8440 User Manual Page 27
- Page / 237
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
Maintenance and Service Guide 2–1
2
Troubleshooting
Å
WARNING: Only authorized technicians trained by HP should repair
this equipment. All troubleshooting and repair procedures are detailed
to allow only subassembly-/module-level repair. Because of the
complexity of the individual boards and subassemblies, do not attempt
to make repairs at the component level or modifications to any printed
wiring board. Improper repairs can create a safety hazard. Any
indication of component replacement or printed wiring board
modification may void any warranty or exchange allowances.
2.1 Computer Setup
Computer Setup is a system information and customization utility
that can be used even when the operating system is not working
or will not load. This utility includes settings that are not
available in Windows.
Using Computer Setup
Information and settings in Computer Setup are accessed from
the Main, Security, Advanced, or Tools menus:
1. Turn on or restart the computer. Press
f10 while the
F10 = ROM-Based Setup message is displayed in
the lower-left corner of the screen.
❏ To change the language, use the cursor control keys
to navigate to the Advanced menu.
❏ To view navigation information, press f1.
❏ To return to the Computer Setup menu, press esc.
- Maintenance and Service 1
- Contents 3
- 3 Illustrated Parts Catalog 4
- Product Description 7
- 1.1 Features 8
- 1.2 Resetting the Computer 10
- 1.3 Power Management 11
- 1.4 External Components 12
- Table 1-2 14
- Right-Side Components 14
- Table 1-3 15
- Rear Panel Components 15
- Table 1-4 16
- Left-Side Components 16
- Standard Keyboard Components 18
- Table 1-5 19
- Table 1-6 20
- Top Components 21
- Table 1-7 22
- Bottom Components 24
- Table 1-8 25
- 1.5 Design Overview 26
- Troubleshooting 27
- Selecting from the File Menu 28
- Table 2-2 29
- Security Menu 29
- Selecting from the Tools Menu 30
- Table 2-5 31
- (if applicable) 40
- Connection 52
- Illustrated Parts Catalog 53
- 3.2 Computer Major Components 54
- Major Components 54
- Table 3-1 55
- 3.3 Plastics Kit 68
- Table 3-2 69
- Plastics Kit 69
- Spare Part Number Information 69
- 3.4 Mass Storage Devices 70
- Table 3-3 71
- Mass Storage Devices 71
- Table 3-4 72
- Spare Part Information 72
- Table 3-5 74
- Removal and Replacement 83
- Preliminaries 83
- 4.2 Service Considerations 84
- Procedures 91
- 5.1 Serial Number 92
- Disassembly Sequence Chart 93
- Disassembly 95
- 5.4 Hard Drive 96
- Removing the Hard Drive Cover 97
- Removing the Hard Drive 98
- Removing the Hard Drive Frame 99
- 5.5 Computer Feet 100
- 5.6 Optical Drive 101
- 5.7 External Memory Module 103
- 5.8 Bluetooth Module 106
- 5.9 Keyboard 108
- (Continued) 109
- Removing the Keyboard Screws 110
- Releasing the Keyboard 111
- 5.10 Fan Assembly 113
- Removing the Fan Assembly 114
- Replacing the Thermal Paste 115
- Removing the Thermal Plate 116
- 5.11 Heat Sink 118
- Removing the Heat Sink 119
- 5.12 Processor 121
- Removing the Processor 122
- 5.13 Internal Memory Module 123
- 5.14 RTC Battery 125
- 5.15 TouchPad 126
- Releasing the TouchPad 127
- 10. Remove the TouchPad 2 128
- 5.16 Mini Card Module 129
- Removing a Mini Card Module 131
- 5.17 Switch Cover 132
- Releasing the Switch Cover 133
- Removing the Switch Cover 134
- 5.18 Display Assembly 135
- Removing the Display Assembly 138
- 5.19 Top Cover 139
- Removing the Top Cover 142
- 5.20 Modem Module 143
- Removing the Modem Module 144
- 5.21 System Board 145
- 4. Remove the following: 148
- 1 Two Torx T8M2.5×6.0 screws 148
- 2 Two Torx T8M2.5×4.0 screws 148
- Removing the System Board 151
- 5.22 System Board Frame 152
- Remove the System Board Frame 153
- Removing the Modem Cable 154
- 5.23 Serial Connector Module 155
- 5.24 USB/Audio Board 157
- Removing the USB/Audio Board 158
- Specifications 159
- Table 6-2 161
- 15.4-inch, WUXGA+WVA 161
- Table 6-3 162
- 15.4-inch, WSXGA+WVA 162
- Table 6-4 163
- 15.4-inch, WXGA+WVA 163
- Table 6-5 164
- Hard Drives 164
- Table 6-6 165
- Table 6-7 167
- DVD/CD-RW Combo Drive 167
- Table 6-8 169
- DVD-ROM Drive 169
- Table 6-9 170
- System DMA 170
- Table 6-10 171
- System Interrupts 171
- Table 6-11 173
- System I/O Addresses 173
- Table 6-12 176
- System Memory Map 176
- Screw Listing 177
- Table A-1 178
- Phillips PM3.0×3.0 Screw 178
- Table A-2 179
- Table A-3 180
- Table A-4 181
- Torx8 T8M2.5×4.0 Screw 181
- Table A-5 185
- Phillips PM2.0×3.0 Screw 185
- (Continued) 186
- Table A-6 187
- Phillips PM1.5×3.0 Screw 187
- Table A-7 188
- Torx8 T8M2.5×10.0 Screw 188
- Table A-8 191
- Table A-9 192
- Table A-10 193
- Phillips PM2.0×4.0 Screw 193
- Table A-11 194
- Phillips PM2.0×2.0 Screw 194
- Table A-12 196
- Phillips PM2.5×4.0 Screw 196
- Table A-13 197
- Hex HM5.0×12.0 Screw Lock 197
- Table A-14 198
- Torx8 T8M2.5×6.0 Screw 198
- Software Backup and 199
- Recovery 199
- Backing Up the System 200
- Software Backup and Recovery 201
- Creating Recovery Discs 204
- (Highly Recommended) 204
- Performing a Recovery 205
- Recovery Partition 206
- Display Component Recycling 207
- Removing the Display Bezel 210
- Removing the Display Inverter 211
- Removing the Display Frame 214
- Removing the Backlight Cover 215
- Removing the Backlight Frame 217
- Removing the Backlight 218
- Releasing the LCD Panel 219
- 23. Remove the LCD panel 220
- Connector Pin Assignments 221
- Table D-2 222
- Audio-In (Microphone) 222
- Table D-3 222
- Universal Serial Bus 222
- Table D-4 223
- S-Video-Out 223
- Table D-5 224
- External Monitor 224
- Table D-6 225
- RJ-11 (Modem) 225
- Table D-7 226
- RJ-45 (Network) 226
- Power Cord Set Requirements 227
- General Requirements 228
- Country-Specific Requirements 229
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