Toshiba NB520 User Manual Page 97
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indicator is glowing, the computer is connected to a live external power
source.
Hardware and system checklist
This section discusses problems caused by your computer’s hardware or
attached peripherals. Basic problems may occur in the following areas:
Power
Keyboard
Internal display panel
Hard disk drive
Memory media card
Touch Pad
USB device
Sound system
External monitor
LAN
Wireless LAN
Bluetooth
Power
When the computer is not plugged into an AC power outlet, the battery
pack is the primary power source. However, your computer also has a
number of other power resources, including an intelligent power supply and
a Real Time Clock (RTC) battery, all of which are interrelated with any one
having the ability to produce apparent power problems.
Overheating power down
If the processor's temperature reaches an unacceptably high level with
either setting, the computer will automatically shuts down to prevent any
damage - in this instance all unsaved data in memory will be lost.
AC power
If you have trouble turning on the computer with the AC adaptor connected
you should check the status of the DC IN/Battery indicator. Please refer to
Chapter 5, Power and Power-Up Modes for further information.
Problem Procedure
AC adaptor doesn’t
power the computer
Check the connections to make sure that the
power cord/adaptor is firmly connected to the
computer and a working power outlet.
Check the condition of the cord and terminals. If
the cord is frayed or damaged it should be
replaced, while if the terminals are soiled, they
should be cleaned with a clean cotton cloth.
If the AC adaptor still does not power the
computer, you should contact your reseller, dealer
or service provider.
NB520 series
User's Manual 6-
4
- User's Manual 1
- Table of Contents 2
- Copyright 4
- Disclaimer 4
- Trademarks 4
- FCC information 5
- EU Declaration of Conformity 6
- VCCI Class B Information 7
- User's Manual viii 8
- REACH - Compliance Statement 9
- Conventions 10
- Messages 11
- Terminology 11
- General Precautions 12
- Stress injury 13
- Heat injury 13
- Pressure or impact damage 13
- Mobile phones 13
- Chapter 1 14
- Getting Started 15
- Connecting the AC adaptor 16
- Opening the display 17
- Turning on the power 18
- Turning off the power 19
- Sleep Mode 20
- Hibernation Mode 21
- Benefits of Hibernation Mode 22
- Starting Hibernation Mode 22
- Automatic Hibernation Mode 22
- Restarting the computer 23
- Chapter 2 24
- Left side 25
- User's Manual 2 27
- Right side 28
- Underside 28
- Front with the display open 30
- Internal Hardware Components 32
- User's Manual 2-10 33
- User's Manual 2-11 34
- Chapter 3 35
- The Keyboard 36
- Function keys: F1 … F12 37
- Hot key functions 37
- Hot Key Cards 38
- Hot keys 38
- Windows special keys 39
- Keypad overlay 39
- Generating ASCII characters 40
- TOSHIBA Disc Creator 41
- Wireless communications 42
- Security 44
- Card Specifications 44
- Radio Characteristics 44
- Bluetooth wireless technology 45
- LAN cable types 46
- Optional devices 47
- Memory media slot 48
- Memory media 49
- Media care 50
- Inserting a memory media 51
- Removing a memory media 51
- Additional memory module 52
- Removing a memory module 53
- Installing a memory module 54
- 1. Notch 2. Slot 55
- User's Manual 3-21 55
- Connecting the HDMI out port 57
- Select HD Format 58
- Security lock 59
- Optional TOSHIBA accessories 59
- Sound System 60
- Adjusting Microphone Level 61
- Audio Enhancements 61
- Realtek HD Audio Manager 61
- Dolby Advanced Audio 62
- Video mode 63
- Computer Handling 63
- Moving the computer 64
- Heat dispersal 65
- Chapter 4 66
- User's Manual 4 67
- Special features 69
- Sleep and Charge 71
- Sleep and Music 72
- Enabling Sleep and Charge 73
- Power supply mode settings 73
- Enabling Sleep and Music 73
- Password Utility 74
- HW Setup 75
- Password 76
- Boot Priority 77
- Panel Open - Power On 78
- Keyboard 78
- System Recovery 79
- System Recovery Options 80
- Creating Recovery Media 80
- Recovery Media 81
- Recovery hard disk drive 82
- User's Manual 4-18 83
- Chapter 5 84
- Monitoring of power condition 85
- Power indicator 86
- Battery types 86
- User's Manual 5 87
- Charging the batteries 88
- Monitoring battery capacity 89
- Batteries exhausted time 90
- Extending battery life 90
- Replacing the battery pack 91
- Power-up modes 92
- Panel power on/off 93
- Chapter 6 94
- Analyzing the problem 95
- If something goes wrong 96
- Hardware and system checklist 97
- User's Manual 6 98
- Internal display panel 99
- Hard disk drive 100
- Memory Media Card 100
- Pointing device 101
- USB mouse 102
- USB device 103
- NB520 series 104
- User's Manual 6-11 104
- Sound system 105
- External monitor 105
- User's Manual 6-13 106
- TOSHIBA support 107
- Before you call 108
- TOSHIBA technical support 108
- Appendix A 109
- User's Manual A-2 110
- Appendix B 111
- User's Manual B-2 112
- Appendix C 113
- Memory (Main System) 114
- Battery Life 114
- Wireless LAN 115
- Copy Protection 115
- Appendix D 116
- Radio Regulatory Information 117
- User's Manual D 118
- Canada - Industry Canada (IC) 119
- Using this equipment in Japan 121
- Device Authorization 122
- Wireless LAN and Bluetooth 124
- User's Manual D-10 125
- User's Manual Index 126
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