Creative Pentium II Processor 6BA Información técnica Pagina 72
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64 Chapter 4
Check the Power Adapter
Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power
adapter cable. See the following figure
1. If the voltage is not correct, replace the power adapter.
2. If the voltage is within the range, do the following:
T Replace the main board.
T If the problem is not corrected, see “Undetermined Problems” on page 73.
T If the voltage is not correct, go to the next step.
NOTE: An audible noise from the power adapter does not always indicate a defect.
3. If the DC-IN indicator does not light up, check the power cord of the power adapter for correct continuity
and installation.
4. If the operational charge does not work, see “Check the Power Adapter” on page 64.
Pin 1: 19V
Pin 2: 0V, Ground
- Acer TravelMate 290 Series 1
- Revision History 2
- Copyright 3
- Disclaimer 3
- Conventions 4
- Table of Contents 7
- System Specifications 9
- System Block Diagram 11
- Board Layout 12
- Bottom View 13
- Outlook View 14
- Front View 15
- Left Panel 16
- Right Panel 17
- Rear Panel 18
- Bottom Panel 19
- Indicators 20
- Lock Keys 21
- Embedded Numeric Keypad 22
- Windows Keys 23
- Hot Keys 24
- The Euro Symbol 25
- Launch Keys 26
- Touchpad 27
- 20 Chapter 1 28
- Processor 28
- Second Level Cache 28
- System Memory 28
- 22 Chapter 1 30
- DVD-ROM Interface 30
- Audio Interface 30
- Hard Disk Drive Interface 30
- Chapter 1 25 33
- LCD Inverter Specification 33
- Chapter 1 27 35
- Electrical specification 35
- Chapter 1 29 37
- Power Management 37
- Environmental Requirements 37
- AC Adapter 37
- °C (storage package) 38
- Chapter 1 31 39
- I/O Address Map 39
- 32 Chapter 1 40
- IRQ Assignment Map 40
- DMA Channel Assignment 40
- System Utilities 41
- 34 Chapter 2 42
- Advanced 43
- LPT Port 44
- Legacy USB Support 44
- Chapter 2 37 45
- Security 46
- Chapter 2 39 47
- Disabled or Enabled 47
- 40 Chapter 2 48
- Chapter 2 41 49
- BIOS Flash Utility 50
- System Diagnostic Diskette 50
- Chapter 3 51
- General Information 52
- HDD Module 53
- 46 Chapter 3 54
- Screw List 54
- Removing the Battery Pack 55
- Removing the ODD Module 56
- Removing the Memory 56
- Removing the HDD Module 56
- Removing the Keyboard 57
- Removing the LCD module 57
- 50 Chapter 3 58
- Disassembling the Main Unit 59
- 56 Chapter 3 64
- Disassembling the LCD Module 65
- 58 Chapter 3 66
- Disassembling the HDD Module 67
- 60 Chapter 3 68
- Troubleshooting 69
- System Check Procedures 70
- Memory Check 71
- Power System Check 71
- Check the Power Adapter 72
- Touchpad Check 73
- Display Check 73
- Sound Check 74
- 68 Chapter 4 76
- Chapter 4 69 77
- LCD-Related Symptoms 77
- Indicator-Related Symptoms 77
- Power-Related Symptoms 77
- 70 Chapter 4 78
- PCMCIA-Related Symptoms 78
- Memory-Related Symptoms 78
- Speaker-Related Symptoms 78
- Intermittent Problems 80
- Undetermined Problems 81
- 74 Chapter 4 82
- Top View 83
- Chapter 5 83
- SW1 Settings (Lid switch) 84
- SW3 Settings(Kill Switch) 84
- 78 Chapter 5 86
- Chapter 6 87
- Exploded Diagram 88
- LOGIC UPPER ASSY 89
- LCD 14.1” 90
- Chapter 6 83 91
- HDD ASSY 92
- Chapter 6 85 93
- 86 Chapter 6 94
- Chapter 6 87 95
- 88 Chapter 6 96
- Chapter 6 89 97
- 90 Chapter 6 98
- Chapter 6 91 99
- 92 Chapter 6 100
- Chapter 6 93 101
- TravelMate 290 Series 102
- Appendix A 102
- Test Compatible Components 103
- Microsoft 104
- XP Home Environment Test 104
- Appendix B 97 105
- 98 Appendix B 106
- XP Pro Environment Test 107
- 100 Appendix B 108
- Appendix B 101 109
- 102 Appendix B 110
- Online Support Information 111
- 104 Appendix C 112
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