Computer Care's Laptop Repair Workbook: The 300 Cases of Classic Notebook Computers Troubleshooting and Repair - Softcover

Liu, Ashok

Softcover

ISBN 10: 1477205403 ISBN 13: 9781477205402

Verlag: AuthorHouse, 2012

Inhaltsangabe

This is a practical reference book which uses simple testing methods to confirm if a laptop's failure is software or hardware-related. The testing methods presented here can provide a diagnostic accuracy of ninety-nine percent within minutes. Another highlight of this book is that the reader is able to follow a typical repair shortcut, thereby saving considerable 'swap test' time (i.e. avoiding the trial and error system). For the majority of readers, this book will provide most of the failure status information needed to diagnose and resolve an issue. There are thirteen diagnostic flowcharts at the core of this book which are marked with the percentage (probability) of failed components. By checking the components listed on the diagnosis flowcharts one by one starting with components marked as having a high failure rate then gradually inspecting each component with a lower percentage of failure, most individuals will be able to find a resolution. There are also three hundred classic repair cases and dozens of fault detecting methods with application skills available within these pages. Also adopted here is a unique mode of operation to repair laptops with simple steps in which the reader can refer to the eight articles in the "Analysis and Diagnostic" table to find information matching their particular case. The experience and advice provided within this text will assist you diagnose and repair numerous software and hardware problems, and perhaps aid you on your way to becoming your own laptop repair expert.

Über diesen Titel

Über die Autorin bzw. den Autor

Ashok Liu (Xiaochun Liu) has co-founded Computer Care Center, a laptop repairing and service firm, which has entered the 18 years of operation in North America. He has over 35 years of experience in related electronic troubleshooting. In 1982, he was completing a B.S degree in Electrical and Electronic Engineering.

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COMPUTERCARE'S LAPTOP REPAIR WORKBOOK

THE 300 CASES OF CLASSIC NOTEBOOK COMPUTERS TROUBLESHOOTING AND REPAIRBy Ashok Liu

AuthorHouse

Copyright © 2012 Ashok liu
All right reserved.
ISBN: 978-1-4772-0540-2

Contents

Chapter 1 Frequently asked questions with the methods to repair laptop.....................1Chapter 2 Introduction to diagnose common laptop failures..................................37Chapter 3 Power failure repair.............................................................73Chapter 4 Battery charge failure repair....................................................114Chapter 5 Screen failure repair............................................................159Chapter 6 Overheating failure repair.......................................................217Chapter 7 OS load failure, loop restart and blue screen repair.............................265Chapter 8 Black screen or frozen screen repair.............................................330Chapter 9 Solutions to inaccessible drive or folder........................................409Chapter 10 Wireless network card, Bluetooth and Router failure repair......................469Chapter 11 Acoustic system failure repair..................................................549Chapter 12 Optical drive repair............................................................614Chapter 13 Touchpad, keyboard and USB port repair..........................................663Chapter 14 Wired Internet access (ethernet) failure repair.................................705Chapter 15 Dial up Internet failure repair.................................................752

Chapter One

Frequently asked questions with the methods to repair laptop

1.1 Notes on using a laptop

1.1.1 Should we let laptops run uninterrupted for a 24 hour period?

All laptops are designed and manufactured to meet an operating life expectancy requirement. The longer the design life, the more expensive the laptop. For example, a light-bulb can be rated to operate for 1000 hours of use before it fails. It may last longer or sometimes less, but on average it will be 1000 hrs. A more expensive light bulb might be rated for 2000hrs.

Laptops are considerably more complex than a light bulb but the same principles do apply. Obviously turning off a laptop when not in use will prolong its life expectancy.

Most manufacturers set their standard (home-use) laptops to operate uninterrupted for 8 hours. Keeping the device running for a longer period of time may result in damage to the internal components due to lengthy exposure to heat.

Cooling fans are a mechanical device and will wear out over time. The less it runs, the longer it will last. The fan will also tend to clog up with dust and dirt over time causing your laptop to overheat and thus degrade components.

Do not obstruct the air flow vents on your computer. Avoid smoking tobacco when using your laptop. These will accelerate the aging of your laptop.

Avoid using your laptop in a high temperature, or damp environment. This can drastically reduce the life expectancy of your laptop.

Commercial laptops are built to be run continuously, but are much more expensive to buy. You will not likely have one of these.

Personal laptops are not commercial laptops. Don't let them run continuously. Even if you use a commercial laptop, it is still good practice to turn it off at night unless it must remain active for a 24 hour period.

The laptop view screen is also affected by overheating. The LCD (liquid crystal display) degrades over time, and the image quality will deteriorate until there is nothing but a blank screen. Prolonged usage of the laptop without the recommended cool down time will cause the breakdown of the LCD, thus shortening the life span of the laptop.

The battery is probably the most dangerous component of the laptop when allowed to overheat due to reduced ventilation or any other reason. In extreme conditions it might explode. Shut your laptop off and let it cool if your laptop feels too hot.

In conclusion, the laptops of today are not intended to run continuously. Shortening the time that you use the laptop, and remembering to give the laptop a cool down period, will greatly improve and prolong the life span of your laptop.

Chapter 1 notebook Common Questions

1.1 Notes on using a laptop

1.1.2 What is the most pivotal factor influencing a laptops life expectancy?

Over the years there has been much discussion on the relationship between laptop useful life vs. accumulated operating time (AOT). Useful life or life expectancy is often defined as the point at which the manufacturer ceases to support the product. For our purpose we will define it as the point at which unit repair is no longer cost effective. We will concern ourselves only with hardware and not software.

It has been said that a factor affecting electrical apparatus' life expectancy is AOT. The more the laptop is used, the more durable it would be, and the less you use it, the shorter its life would be. This is an opposing view to the accepted theory. You might also hear this argument. At my work place, the computers have been running for 4 to 5 years without interruption, and we have never suffered a failure. Our family computer was finished within 2 years even though we did not use it continuously. I can only conclude that the more the computer is operating, the longer will its life expectancy will be.

Of course this is not exactly true. The computers referred to were operating in a highly controlled environment where temperature, dust, and humidity were all controlled.

Your laptop will not likely be used in this kind of environment but there is something to be learned from this story.

What is the most vital factor influencing laptop life expectancy?

The environment it lives in is the most important factor that will influence life expectancy.

The importance of the environment in which your computer operates, cannot be over stressed. Ambient temperature, humidity and clean environment are decisive factors that determine laptop life expectancy. An environmentally controlled computer room would be the ideal place to use your laptop if you want to run it continuously. Unfortunately our laptops have to be operated in much less controlled environments. It is important to be aware of this scenario and do your best to use your laptop in conditions that will prolong its life expectancy.

When storing your laptop for long periods of time, especially during humid weather, you need to run the laptop occasionally for a minimum of 1 hr but not more than 12, to allow the heat to dry it out. This will prevent the electronic components inside from being corrupted.

Do not store your laptop in a damp environment such as your basement, or in your automobile or a place where the sun will hit it and heat it. Keep it in a case and store it in a cool, clean, and dry environment in your house or office. Even a short period of 7 to 10 days improper storage is enough to degrade the laptop. You might find a perfectly good computer will not boot up when you bring it out of a bad storage situation. You need to be aware of, and avoid this bad practice that can shorten the life of your computer.

When a computer is run continuously in a poor environment its life expectancy will be greatly reduced. Dust accumulation inside the computer will inhibit proper cooling and the unit will run too hot. The fan and hard disc have rotating parts that wear out, and the more you operate, the shorter their lifespan and more so in a poor environment.

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Details zur Ausgabe

• Verlag: AuthorHouse
• Erscheinungsdatum: 2012
• Sprache: Englisch
• ISBN 10: 1477205403
• ISBN 13: 9781477205402
• Einband: Taschenbuch
• Anzahl der Seiten: 816
• Kontakt zum Hersteller: Nicht verfügbar
• Verantwortliche Person: gpsr@libri.de; gpsr@libri.de; ; Europaallee 1; Bad Hersfeld; 36244; Deutschland