Rosewill Computer Case 422 Informacje Techniczne Strona 5
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Contents
Introduction ............................................................................................................................................. xxiv
Features of This Book ...................................................................................................................... xxvi
Chapter 1: Introduction to Computer Repair ........................................................................... 1
Overview ............................................................................................................................................2
CompTIA A+ Certification ............................................................................................................2
Safety Note ........................................................................................................................................3
Technician Qualities .......................................................................................................................3
Basic Computer Parts ....................................................................................................................5
External Connectivity .................................................................................................................. 11
Mouse and Keyboard Ports ........................................................................................................ 12
Mice and Keyboards ..................................................................................................................... 13
Wireless Input Devices ................................................................................................................ 15
Mouse and Keyboard Preventive Maintenance ...................................................................... 18
Keyboard/Mouse Troubleshooting ........................................................................................... 18
Video Port ....................................................................................................................................... 19
USB Port ........................................................................................................................................ 22
Installing Extra USB Ports ........................................................................................................ 26
USB Troubleshooting .................................................................................................................. 27
Parallel Ports ................................................................................................................................. 28
Serial Ports .................................................................................................................................... 29
Audio Ports .................................................................................................................................... 29
IEEE 1394 Ports ........................................................................................................................... 30
IEEE 1394 Troubleshooting ...................................................................................................... 32
eSATA Ports .................................................................................................................................. 33
Network Ports ............................................................................................................................... 33
Modem Ports ................................................................................................................................. 34
Pros and Cons of Integrated Motherboards ........................................................................... 34
Docking Stations and Port Replicators
................................................................................... 35
Chapter Summary ........................................................................................................................ 38
Key Terms ...................................................................................................................................... 38
Review Questions ......................................................................................................................... 39
Exercises ......................................................................................................................................... 40
Lab 1.1 Identifying Tower Computer Parts ..................................................... 40
Lab 1.2 Identification of Computer Ports ........................................................ 41
Lab 1.3 Identification of Video Ports ............................................................... 42
Lab 1.4 Port Identification ............................................................................... 42
Activities
......................................................................................................................................... 43
Chapter 2: On the Motherboard ................................................................................................. 45
Processor Overview ...................................................................................................................... 46
Processor Basics ........................................................................................................................... 46
Intel Processors ............................................................................................................................ 48
- Guide to PCs 2
- Complete CompTIA 3
- Contents at a Glance 4
- Contents 10
- Contents 11
- About the Author 19
- Dedication 20
- Acknowledgments 20
- We Want to Hear from You! 21
- Reader Services 21
- It Pays to Get Certified 22
- CompTIA Career Pathway 23
- Steps to Certication 23
- Content Seal of Quality 24
- Why CompTIA? 24
- Introduction 25
- Organization of the Text 26
- Features of This Book 27
- IT work 31
- CompTIA A+ Exam Objectives 32
- CompTIA Exam Objectives 33
- Disassembly 36
- Disassembly Overview 37
- Electrostatic Discharge (ESD) 37
- Opening the Case 41
- Cables and Connectors 41
- Snug connections 43
- Storage Devices 45
- Motherboards 46
- Mobile Device Issues 47
- Reassembly 49
- Preventive Maintenance 49
- Basic Electronics Overview 51
- Electronics Terms 51
- Good connection Broken wire 53
- Power Supply Overview 54
- Power Supply Form Factors 55
- Tech Tip 56
- Purposes of a Power Supply 58
- Power Supply Voltages 60
- Mobile Device Power 61
- Keep Li-ion batteries cool 63
- Power Interface) 64
- Windows power management 65
- Watch the wattage 68
- Solving Power Supply Problems 70
- Adverse Power Conditions 71
- Adverse Power Protection 72
- Surge Protectors 72
- Line Conditioners 74
- Figure 4.32 Line conditioner 75
- Figure 4.33 Sine wave and 75
- Standby Power Supply (SPS) 77
- Electrical Fires 78
- Computer Disposal/Recycling 79
- Chapter Summary 81
- Review Questions 82
- Exercises 85
- External Cables 86
- Computer Case Removal 86
- Adapter Placement 86
- Motherboard 88
- Lab 4.3 Amps and Wattage 89
- Lab 4.4 Continuity Check 89
- Lab 4.5 Pin-Out Diagramming 90
- Lab 4.6 Fuse Check 91
- Lab 4.7 Using a Multimeter 91
- Figure 4.38 AC outlet 93
- GND to hot 120VAC 93
- GND to neutral 0VAC 93
- Hot to neutral 120VAC 93
- +5 volts 95
- +12 volts 95
- Activities 97
- Critical Thinking Skills 99
- A+ Certification Exam Tips 99
- Complete PC Restore tool 107
- FireWire 114
- IRQs (Interrupt Requests) 120
- PBs (petabytes) 129
- Setup program 136
- SSDs (solid state drives) 138
- SSDs (solid state drives) 139
- TBs (terabytes) 140
- troubleshooting 143
- video 145
- Windows 147
- Windows Vista 148
- Windows Vista 149
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