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Troubleshooting
Maintenance and Service Guide 2–17
2.15 No Audio, Part 1
No audio
N
Notebook in
docking station
(if applicable)?
Internal
audio?
Audio? Done
Undock
Audio? Done
Turn up audio
internally or
externally.
Go to
Section 2.16,
No Audio, Part 2.
Go to
Section 2.16,
No Audio, Part 2.
Go to
Section 2.17,
Nonfunctioning
Device.
Replace the following docking station
components one at a time as applicable.
Check after each change.
1. Reseat docking station audio cable.
2. Replace audio cable.
3. Replace speaker.
4. Replace docking station audio board.
5. Replace backplane board.
Y
Y
Y
Y
N
N
N
- Maintenance and Service Guide 1
- First Edition October 2001 2
- Contents 3
- 3 Illustrated Parts Catalog 4
- 6 Specifications 5
- A Connector Pin Assignments 5
- B Power Cord Set Requirements 5
- Table 1-1 10
- Compaq Notebook Evo N160 10
- 1.1 Features 13
- Product Description 14
- 1.2 Clearing a Password 15
- 1.3 Power Management 16
- Table 1-2 19
- Table 1-3 22
- Keyboard Components 22
- F1 through F12 22
- Figure 1-5. Top Components 23
- Table 1-4 23
- Top Components 23
- Caps lock is on 24
- Scroll is on 24
- Top Components (Continued) 24
- Figure 1-6. Bottom Components 25
- Table 1-5 25
- Bottom Components 25
- Bottom Components (Continued) 26
- 1.5 Design Overview 27
- Troubleshooting 28
- Troubleshooting Flowcharts 29
- Initial Troubleshooting 30
- 2.2 No Power, Part 1 31
- 2.3 No Power, Part 2 32
- 2.4 No Power, Part 3 33
- 2.5 No Power, Part 4 34
- 2.6 No Video, Part 1 35
- 2.7 No Video, Part 2 36
- (if applicable) 37
- 2.15 No Audio, Part 1 44
- 2.16 No Audio, Part 2 45
- 2.17 Nonfunctioning Device 46
- 2.18 Nonfunctioning Keyboard 47
- Illustrated Parts Catalog 50
- System Major Components 51
- Table 3-1 52
- Table 3-2 57
- Spare Part Number 251365-001 57
- 3.4 Mass Storage Devices 58
- 3.5 Miscellaneous 59
- Table 3-4 60
- Removal and Replacement 61
- Preliminaries 61
- 4.2 Service Considerations 62
- 4.3 Preventing Damage to 63
- Removable Drives 63
- Precautions 64
- 4.6 Workstation Precautions 65
- Procedures 68
- 5.1 Serial Number 69
- Table 5-1 70
- Disassembly Sequence Chart 70
- Disassembly 71
- Drive Sleeve 73
- 5.4 Memory Expansion Board 75
- 5.5 Computer Feet 77
- 5.6 Switch Cover 78
- Esc key 1 (Figure 5-10) 79
- 5.7 Keyboard 80
- 5.8 Fan Assembly 83
- 5.9 Processor 85
- 5.10 Display 87
- 5.11 Top Cover 91
- Removing the Top Cover Screws 93
- 5.12 Speaker Assembly 95
- 5.13 Disk Cell RTC Battery 97
- Spare Part Number Information 98
- 5.15 Sub I/O Board 100
- 5.16 System Board 103
- Board Screw 105
- Specifications 107
- Table 6-1 108
- Computer (Continued) 108
- Table 6-2 109
- 14.1-inch XGA, TFT Display 109
- Table 6-3 110
- 13.3-inch XGA, TFT Display 110
- Hard Drives 111
- Hard Drives (Continued) 112
- Table 6-4 113
- Diskette Drive 113
- Table 6-5 114
- CD-ROM Drive 114
- Table 6-6 115
- DVD-ROM Drive 115
- Table 6-7 116
- CD-RW Drive 116
- Table 6-8 117
- AC Adapter 117
- Table 6-9 117
- 8-cell, Li ion Battery Pack 117
- Table 6-10 118
- System DMA 118
- Table 6-11 119
- System Interrupts 119
- Table 6-12 120
- System I/O Addresses 120
- Table 6-13 123
- System Memory Map 123
- Connector Pin Assignments 124
- Table A-2 125
- RJ-11 Modem 125
- Table A-3 125
- Universal Serial Bus 125
- Table A-4 126
- Table A-5 127
- Parallel 127
- Table A-6 128
- External Monitor 128
- Table A-7 129
- Stereo Speaker/Headphone 129
- Table A-8 129
- Microphone 129
- Power Cord Set Requirements 130
- Country-Specific Requirements 131
- Screw Listing 133
- Table C-2 134
- Phillips M3.0 × 4.0 Screw 134
- Table C-3 135
- Phillips M2.0 × 5.0 Screw 135
- Table C-4 138
- Phillips M2.0 × 9.0 Screw 138
- Table C-5 143
- Phillips M2.0 × 10.5 Screw 143
- Table C-6 145
- Phillips M2.0 × 12.0 Screw 145
- Table C-7 146
- Phillips M2.0 × 6.5 Screw 146
- Table C-8 150
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