现代电子故障排除指南：第四版深度解析

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《电子故障诊断，第四版》是一本由丹尼尔·R·托马尔博士和阿瑟姆·S·阿加亚尼安博士合著的专业级电子技术教材。两位作者都是在电子、计算机工程和技术领域具有深厚背景的专家，他们的学术研究和实践经验丰富，分别在各自的教育和工业领域都有卓越贡献。该书的第四版对理论教学和实践技能的结合进行了深度提升。它不仅涵盖了传统电子设备如电机的维修，还扩展到了现代电子系统中的计算机网络和网络设备，适应了数字化时代的发展。书中深入浅出地阐述了各种类型的电路和系统，包括模拟与数字系统的全面理解，使得无论是家庭爱好者还是专业技术人员都能从中受益。作者们强调理论与实践的平衡，通过逻辑的方式引导读者理解和解决电子设备的故障。每一章都精心设计，辅以大量的插图，使复杂的概念易于理解。此外，附录中的故障排查指南作为实用工具，为读者提供了简洁而详尽的参考资源。对于电子设计、维护和修理领域的专业人士来说，这本书无疑是一本不可或缺的参考资料。它不仅适合于初学者，也能够满足经验丰富的工程师对于新技术和理论更新的需求。例如，奈尔·S·韦德默教授高度评价了该书的全面更新和新增内容，而西蒙·蒙克博士则推荐它作为电子故障诊断的首选书籍。《电子故障诊断，第四版》以其严谨的理论体系、实用的案例分析和与时俱进的覆盖范围，成为电子技术学习者和从业者的重要参考书籍，是推动现代电子技术教育和实践发展的重要载体。无论是为了提升个人技能，还是为了教学和研究，这本书都能提供宝贵的指导和支持。

Acknowledgments

One day I received an e-mail from Dr. Daniel Tomal asking if I would be interested in co-authoring

a book called Electronic Troubleshooting and of course I said “Yes.” I realized that this was not a

dream but a reality when I was looking at a contract with McGraw-Hill. I am still at a loss for words

on how to thank Dr. Tomal; he gave me the opportunity to fulfill my desire to be a co-author of a

book. I have to thank him for assisting, advising, and walking me through this amazing journey of

book writing. From the first day we met he has always encouraged and advised me. It has been an

honor to be his co-author.

Credit must be given to Professor Patrick O’Connor on so many levels. He was my Dean who

hired me in 1994 at DeVry-Chicago. Through the years he mentored, advised, and encouraged me to

pursue a Ph.D. and even danced at my wedding. Pat retired early, but when I contacted him with

questions about writing Chaps. 9 and 12, he showed no hesitation to help. The material covered in

these chapters is his specialty, and his knowledge and skill go far beyond the content that is included

in this book. I credit both chapters to him. Because of his knowledge, experience, and help, I was able

to include these two important chapters in the book. Pat has also edited and reviewed other chapters,

and he drew most of the figures in Chap. 8.

I must recognize and thank Dr. Ahmed Khan for all of his contributions—not only for this book

but for the professional papers through the years we have co-authored. His vast number of published

books and papers, and his integrity, knowledge, experience, positive encouragement, advice, and

friendship are major reasons I undertook this project and was able to complete my chapters.

Credit for the figures and tables in Chaps. 7, 10, and 11 goes to Mike Breckenridge. His

knowledge of programs such as Multisim, Eclipse, and Visio as well as his attention to details has

contributed to these professional drawings. I thank him for his positive encouragement, help, and

friendship.

I would like to thank the beautiful models Stephanie and Isabella Girjikian who very patiently

and professionally posed for the pictures taken by their father Hacik Girjikian.

I would also like to acknowledge my friends and colleagues at DeVry-Chicago for all their advice

and encouragement through the years.

In addition, I extend my deep appreciation to Joseph Arslan, a retired civil engineer, who is not

only my uncle but my mentor and advisor. Since my earliest memory he has always encouraged me to

become an engineer. Without his advice, care, and love, I would not have been able to accomplish any

of my goals.

Last and most important, I have to thank my wife for her infinite love, support, encouragement,

wisdom, and resilience, and for never losing faith in me.

Aram S. Agajanian, Ph.D.

The authors wish to thank the many organizations and people who contributed to the development of

this book. We express our appreciation to the many companies that provided information and

illustrations such as Zenith Video Tech Corporation, Winegard Company, KB Electronics, Inc.,

Introduction

The fourth edition of this book has been updated to include the latest electrical and electronic

devices and troubleshooting methods. It continues to be very suitable for anyone—associate’s,

bachelor’s, or master’s degree electrical and electronic engineering or technology students, service

technicians, hobbyists, apprentice technicians, trade, industrial, and vocational students—who wants

to understand electrical and electronic troubleshooting. This book is ideal for adoption in electrical

and electronic troubleshooting courses or as a required supplemental text for technical, vocational, or

engineering courses. For optimum textbook use, a basic knowledge of electricity and electronics

theory is advised.

The book can also be used by any technician or engineer as a handy reference guide in

troubleshooting a wide array of electrical and electronic products and devices.

The book’s unique strength is that it consolidates fundamentals and troubleshooting information

of a wide range of electrical and electronic devices, thereby eliminating the need for several books.

The authors have written the book in a practical and down-to-earth fashion and have included

numerous tables, charts, illustrations, graphs, and troubleshooting flowcharts. The authors have

included many “rules of thumb” and time-saving “tricks of the trade” acquired through several years

of hands-on experience as electrical and electronic troubleshooters and consultants.

This book has also been written to incorporate sound principles of learning and methodology

utilizing the cognitive, affective, and psychomotor domains of learning to enable the reader to

comprehend and understand the material.

The book blends traditional electrical theory and equipment (motors, controls, and wiring) with

modern networking and electronic technology (computers, microprocessors, embedded

microprocessor systems); the cutting-edge technology of biomedical equipment is also included. The

reference guides at the back of the book will also allow the reader to quickly focus on the problem at

hand, instead of requiring her or him to read the entire book for just one problem.

The organization of the book follows a progressive approach of understanding basic

troubleshooting analysis and traditional products to more complex and advanced technology. Chapter

1 covers the essential principles and methods of electrical and electronic troubleshooting and provides

the basic theory and testing of components such as capacitors, diodes, silicon-controlled rectifiers,

integrated circuits, resistors, ultracapacitors, and inductors. This chapter also includes a practical

problem-solving approach and presents the various circuit faults commonly found in electronics

today.

Chapter 2 provides a valuable overview of modern-day test equipment used in troubleshooting

electrical and electronic products and devices. Commonly used test instruments such as the VOM,

FET multimeter, DMM, and oscilloscope are covered, as well as specialized test instruments such as

the megohmmeter, digital logic probe, optical time-domain reflectometer, and network, spectrum, and

waveform analyzer.

Chapter 3 explains the basic theory and repair of electric motors and generators—the heart of

industrial machinery. Some of the types of motors covered include shaded-pole, capacitor, three-

phase, repulsion, universal, synchronous, and the increasingly popular stepper motor as used in digital

applications.

Chapter 4 explains the essential principles, applications, and servicing of industrial controls.

Several controllers are presented, such as a manual starter, magnetic overload relay, pneumatic timing

relay, bimetallic thermal overload relay, drum switch, electronic drive, and programmable controller.

Chapter 5 covers troubleshooting of residential and industrial wiring. The basic theory and

fundamentals of wiring are explained, followed by troubleshooting of such circuits as distribution

panels, three-way and four-way switching controls, wye and delta wiring, polyphase industrial wiring,

fiber optics, and television and antenna distribution systems.

Chapter 6 covers the troubleshooting of radio and television. It begins by describing the theory

and component stages of AM, FM, FM multiplex, and HD, UHD, and smart television circuitry. This

chapter then presents the typical problems encountered, along with methods for testing and repairing

these products.

Chapter 7 is an introduction to digital systems and troubleshooting. Topics include analog and

digital circuits, basic logic gates, digital technologies, safety, open and short digital circuits,

troubleshooting examples, and troubleshooting equipment such as oscilloscopes, logic analyzers, logic

pulsers, and logic probes.

Chapter 8 explains the building blocks of modern combinational and sequential circuits. It starts

with flip-flops, decoders, and encoders. Next, it covers shift registers, counters, and digital-to-analog

and analog-to-digital converters that are constructed from flip-flops. Troubleshooting synchronous

logic is covered as well.

Chapter 9 introduces microprocessors, microprocessor-based systems, and troubleshooting.

Memory, input/output, troubleshooting microprocessor-based systems using in-circuit emulator (ICE),

microprocessor chips such as Intel’s LGA2011 and Zilog’s Z-80180, memory upgrade, and

disassembled and decompiled memory dumps are the major topics covered in this chapter.

Chapter 10 presents the cutting-edge technology of biomedical equipment and troubleshooting.

Electrical safety is emphasized. Biomedical engineering technology concepts related to equipment

such as defibrillators, and ECG, EEG, hemodialysis, MRI, ultrasound, and X-ray machines; and

troubleshooting, and preventive maintenance are introduced.

Chapter 11 provides a modern overview of computer networking. Topics include configuring

network devices such as routers and switches using Cisco IOS commands, IP addressing, subnetting,

virtual local area networks, network troubleshooting through OSI layers, a network troubleshooting

example using a flowchart, and a troubleshooting example for routers.

Chapter 12 covers the exciting field of embedded microprocessor systems. Embedded systems

are explained briefly, followed by the troubleshooting of microcontroller-based systems; timing

diagrams for microprocessor and microcontroller; Zilog’s Z16FMC microcontroller; recurrent-sweep

and triggered-sweep oscilloscopes; logic analyzers; programmable devices such as PALs, CPLDs,

FPGAs, and FPLAs; and Raspberry Pi.

The authors believe that this book will be valuable and insightful to you in advancing your or

your students’ knowledge and skills in the exciting and important field of electrical and electronic

troubleshooting.

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现代电子故障排除指南：第四版深度解析

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