Compaq 1500 Anleitung zur Fehlerbehebung Seite 127
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Computer Removal and Replacement Procedures 7-43
7.16 DC-DC Converter
CAUTION: The DC-DC Converter board is secured by a short, T-8 screw. Do not use
the long, T-8 screw to secure the DC-DC Converter board. Use of the long screw may
damage the system board.
To remove the DC-DC converter, complete the following procedures:
1. Disconnect the AC power and any external devices (Section 7.4.1).
2. Remove the battery pack (Section 7.4.3).
3. Remove the DualBay device (Section 7.4.4).
4. Remove any PC Cards (Section 7.4.5).
5. Remove the keyboard (Section 7.7).
6. Remove the microphone/display cable cover and microphone (Section 7.11).
7. Remove the clutch covers/display assembly (Section 7.12.1).
8. Remove the top cover assembly (Section 7.13).
- Maintenance and Service Guide 1
- Technician Notes 2
- Laser Safety 3
- CDRH Regulations 3
- Battery Notice 4
- Serial Number 4
- Contents 6
- Chapter 7 8
- Chapter 8 9
- Chapter 9 9
- Contents ix 10
- Computer Product Description 11
- 1.2 Standard Features 12
- 1.2.1 Software Fulfillment 13
- 1.3 Options 14
- 1.3.4 External Keyboards and 15
- Pointing Devices 15
- 1.3.5 External Monitors 15
- 1.4.2 Right Side Components 17
- 1.4.3 Rear Components 18
- 1.4.4 Bottom Components 19
- 1.4.5 Status Panel Lights 20
- Description 21
- 2.3.2 Rear Components 26
- Troubleshooting 28
- 3.1 Preliminary Steps 29
- Troubleshooting 3-3 30
- 3.4 POST Error Messages 31
- Table 3-1 32
- Warning Messages 32
- Table 3-2 33
- Fatal Error Messages 33
- Table 3-3 33
- Fatal Error Beep Codes 33
- 3.5 Compaq Utilities 34
- 3-8 Troubleshooting 35
- Computer Checkup 36
- 3-10 Troubleshooting 37
- 3.6 Diagnostic Error Codes 38
- 3-12 Troubleshooting 39
- Troubleshooting 3-13 40
- Table 3-11 41
- Video Test Error Codes 41
- Table 3-12 42
- Audio Test Error Codes 42
- Table 3-13 43
- Table 3-14 43
- CD-ROM Test Error Codes 43
- 3.7.1 Solving Minor Problems 44
- Table 3-16 45
- Troubleshooting 3-19 46
- Table 3-17 47
- Solving Hard Drive Problems 48
- Solving CD-ROM Drive Problems 48
- Table 3-20 49
- Table 3-21 49
- Table 3-22 50
- Table 3-23 50
- Solving Memory Problems 51
- Solving PC Card Problems 52
- Table 3-25 Continued 53
- Solving Power Problems 54
- Solving Printer Problems 55
- Solving Screen Problems 55
- Table 3-28 56
- Table 3-29 57
- Troubleshooting 3-31 58
- 3-32 Troubleshooting 59
- Solving Network Problems 60
- 3-34 Troubleshooting 61
- 4.1 System Unit 63
- 4.2 Mass Storage Devices 65
- 4.3 Cables and Power Cords 67
- 4.5 Options 71
- 4.6 Miscellaneous Parts 73
- 4.8 Shipping Boxes 75
- 4.9 Documentation 75
- 5.1 System Unit 77
- Removal and Replacement 79
- Preliminaries 79
- Equipment 80
- Removing Batteries 80
- Preventing Damage to Drives 81
- Grounding Methods 81
- Grounding Workstations 82
- Grounding Equipment 82
- 6.2 Service Considerations 84
- 6.3 Serial Number 84
- Procedures 85
- 7.3 Design Overview 87
- 7.3.3 Video system 88
- 7.4.2 Undocking the Computer 89
- 7.4.3 Battery Pack 90
- To install the battery pack: 91
- 7.4.4 DualBay Devices 92
- 7.4.5 PCMCIA 93
- 7.5 Modem 94
- 7.6 CD-ROM Drive 95
- 3. Remove the CD-ROM drive 96
- 7.7 Keyboard 97
- 7.8 Memory Board 100
- 7.9 Hard Drive 103
- 7.10 Lithium Real Time Clock 105
- 8. Remove the RTC battery 106
- Cover and Microphone 107
- 5. Remove the microphone 109
- 7.12.1 Clutch Covers 110
- 7.12.2 Display Assembly 111
- 7.12.3 Clutches 112
- 5. Remove the display bezel 113
- 7. Remove the display clutch 115
- 7.12.4 Display latches 116
- 7.13 Top Cover Assembly 118
- 7.13.1 Power Button 120
- 7.13.2 Suspend Button 121
- 7.14 LED Status Panel 124
- 7.16 DC-DC Converter 127
- 7.17 Fan 131
- Figure 7-42. Removing the Fan 132
- 7.18 I/O Fixture Connector 133
- 7.19 System Board 135
- 7.20 AC Power 137
- 7.21 External Computer 138
- Components 138
- 7.21.2 Computer Feet 138
- Upgrade Procedures for the 139
- Convenience Base 139
- Ethernet Network Module 140
- 5. Remove the 10BaseT module 144
- Specifications 148
- 9.1 Computer 149
- 9.2 Displays 150
- 9.3 Hard Drives 151
- 9.4 Diskette Drive 152
- 9.5 CD-ROM Drive 153
- 9.6 Battery Packs 154
- 9.7 Convenience Base 155
- 9.8 External Power Supplies 156
- Table 9-11 157
- External Battery Charger 157
- 9.9 System Interrupts 158
- 9.10 System DMA 158
- 9.11 System I/O Address 159
- Table 9-17 Continued 160
- 9.12 System Memory Map 161
- Table A-7 164
- Parallel 164
- Table A-8 164
- Table A-9 165
- Expansion Connector 165
- Table A-9 Continued 166
- Table A-10 168
- Speaker Connector 168
- Power Cord Set Requirements 169
- Country-Specific Requirements 170
- Modem Commands 171
- Table C-1 Continued 172
- Command Description 172
- Table C-2 175
- AT Commands 175
- Table C-2 Continued 176
- Table C-3 178
- Fax Commands 178
- Table C-3 Continued 179
- Table C-4 181
- Dial Modifiers 181
- 1.1 Models and Features 184
- 1.2 Features 185
- 1.3 Software Fulfillment 186
- Universal Serial Bus 187
- Battery Spacer Door 187
- Illustrated Parts for the 188
- Computer 188
- Table 4-1 189
- System Unit 189
- Table 4-2 190
- Mass Storage Devices 190
- Table 4-3 191
- Cables and Power Cords 191
- Table 4-4 192
- Standard and Optional Boards 192
- Table 4-5 193
- Table 4-6 194
- Miscellaneous Parts 194
- Table 4-7 195
- Accessories 195
- Option Spares 196
- 9.0 Specifications 197
- Physical Configuration 198
- Random < 150 ms 199
- Table 9-3 200
- 12.1-inch TFT, SVGA Display 200
- Appendix C 201
- Continued 201
- Continued 205
- Index I-1 214
- I-2 Index 215
- Index I-3 216
- I-4 Index 217
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