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Troubleshooting

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Wikipedia About Troubleshooting

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Troubleshooting

In general, troubleshooting is the identification of, or diagnosis of "trouble" in a system caused by a failure of some kind. The problem is initially described as symptoms of malfunction, and troubleshooting is the process of determining the causes of these symptoms.

A system can be described in terms of its expected, desired or intended behavior (usually, for artificial systems, its purpose). Events or inputs to the system are expected to generate specific results or outputs. (For example selecting the "print" option from various computer applications is intended to result in a hardcopy emerging from some specific device). Any unexpected or undesirable behavior is a symptom. Troubleshooting is the process of isolating the specific cause or causes of the symptom. Frequently the symptom is a failure of the product or process to produce any results. (Nothing was printed, for example).

The methods of forensic engineering are especially useful in tracing problems in products or processes, and a wide range of analytical techniques are available to determine the cause or causes of specific failures. Corrective action can then be taken to prevent further failures of a similar kind. Preventative action is possible using FMEA and FTA before full scale production, and these methods can also be used for failure analysis.

Aspects

Most discussion of troubleshooting, and especially training in formal troubleshooting procedures, tends to be domain specific, even though the basic principles are universally applicable.

Usually troubleshooting is applied to something that has suddenly stopped working, since its previously working state forms the expectations about its continued behavior. So the initial focus is often on recent changes to the system or to the environment in which it exists. (For example a printer that "was working when it was plugged in over there"). However, there is a well known principle that correlation does not imply causality. (For example the failure of a device shortly after it's been plugged into a different outlet doesn't necessarily mean that the events were related. The failure could have been a matter of coincidence.) Therefore troubleshooting demands critical thinking rather than magical thinking.

It's useful to consider the common experiences we have with light bulbs. Light bulbs "burn out" more or less at random; eventually the repeated heating and cooling of its filament, and fluctuations in the power supplied to it cause the filament to crack or vaporize. The same principle applies to most other electronic devices and similar principles apply to mechanical devices. Some failures are part of the normal wear-and-tear of components in a system.

A basic principle in troubleshooting is to start from the simplest and most probable possible problems first. This is illustrated by the old saying "When you see hoof prints, look for horses, not zebras", or to use another maxim, use the KISS principle. This principle results in the common complaint about help desks or manuals, that they sometimes first ask: "Is it plugged in and does that receptacle have power?", but this should not be taken as an affront, rather it should serve as a reminder or conditioning to always check the simple things first before calling for help.

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News about Troubleshooting

Ericsson Utran Engineers

Cellular-News.comSELEK Telecom is looking for experienced UTRAN engineers on behalf of one of our clients who are capable of troubleshooting network performance issues in live networks.http://www.cellular-news.com/recruitment/list_job.php?uid=70...

Dead Palm organizer may still give its data

Worcester Telegram & GazetteQ My Palm organizer died. Is there any way I can get all my contact and datebook information from it and moved to Outlook?http://telegram.com/article/20090510/NEWS/905100601/1002/RSS...

Harvard: Thomas Menino, you can fix this mess

Boston HeraldFire alarm operators and supervisors earn far more pay than their counterparts in the emergency medical services and police departments, but handle only a fraction of the...http://www.bostonherald.com/news/regional/view.bg?articleid=...

Should you upgrade to Windows 7 from Vista? That depends

Arizona Daily StarThe final test version of Microsoft's Windows 7, the replacement for problem-ridden Windows Vista, is being unveiled now for a tryout. Some believe the new operating system will be available in stores and on new computers by fall.http://www.azstarnet.com/sn/business/292251.php

Quarter Century Club

Fort Wayne Journal GazetteName: William R. May Age: 54 Employer: Parker Hannifin Corp., Albion Photo caption: Mayhttp://www.journalgazette.net/article/20090510/BIZ04/3051099...

News about Troubleshooting

Free download available for Windows 7 test

Minneapolis Star TribuneCheck out "Troubleshooting Flash Player crash or freeze" at kb2.adobe.com/cps/408/kb408620.html . The "End User's General Troubleshooting" is near the bottom of the page. E-mail tech questions to steve.j.alexander@ gmail.com or write Tech Q&A, 425 ... http://www.startribune.com/science/44390472.html?elr=KArksLc...

FairPoint call centers unable to take calls

Boston GlobeA spokesman said the company is troubleshooting the problem, but hasn't figured out the cause and doesn't know when service will be restored.http://www.boston.com/business/articles/2009/05/08/fairpoint...

Apple Store to open at Robina Town Centre on the Gold Coast

News.com.auUser assistance includes free workshops on how to use Apple hardware and software, a Genius Bar for troubleshooting, and a One on One service where users can get an hour a week of personalised tuition for a small annual fee. Personal shopping help ... http://www.news.com.au/technology/story/0,28348,25431103-501...

Palin Urges Ga. Voters to Back Chambliss in Runoff

ABC NewsIt's one thing to run the state from a Blackberry when you're just troubleshooting and helping solve some problems, but where is she sitting down with her staff, being proactive and trying to solve some problems that are on the horizon?" Higgins said ... http://abcnews.go.com/Politics/WireStory?id=6365431&page=2

Computer restarting after blue screen.

Toms HardwareCould anyone tell me what would be a good place to start for troubleshooting this? Bad PSU? Bad ram? I guess i do need to see the error it gives but im afraid it might be too quick to read if its restarting on its own. Any help is appreciatedhttp://www.tomshardware.com/forum/265164-31-computer-restart...

Search results for Troubleshooting

Automotive Troubleshooting

Links to automotive troubleshooting experts ... Troubleshooters.Com (R) Presents Automotive Troubleshooting Copyright (C) 1996-2002 by Steve Litthttp://www.troubleshooters.com/tautomot.htm

Troubleshooting - Lifehacker

The Blue Screen of Death Survival Guide Decodes Your System Crash Getting a Blue Screen of Death is never a good time, but the infamous error screen is actually trying to help ... http://lifehacker.com/tag/troubleshooting/

troubleshooting definition of troubleshooting in the Free Online ...

troubleshoot. To find out why something is not working properly in order to fix the problem. Troubleshooting a computer may first require determining whether the problem is ... http://encyclopedia2.thefreedictionary.com/troubleshooting

Troubleshooting Your Engine - Engine Troubleshooting Help ...

Troubleshooting is the most important part of auto repair. If you can properly troubleshoot a problem, you won't waste time and money fixing things that don't need to be fixed.http://autorepair.about.com/od/troubleshooting/a/TS_engine_i...

Troubleshooting « WordPress Codex

Design and Layout Troubleshooting http://codex.wordpress.org/Troubleshooting

Wikipedia results for Troubleshooting

Troubleshooting - Wikipedia, the free encyclopedia

Troubleshooting is a form of problem solving most often applied to repair of failed products or processes. It is a logical, systematic search for the source of a problem so that it ... http://en.wikipedia.org/wiki/Troubleshooting

Wikipedia:Troubleshooting - Wikipedia, the free encyclopedia

This page is (hopefully) the beginning of a page to help resolve various technical difficulties with accessing or editing Wikipedia Pages.http://en.wikipedia.org/wiki/Wikipedia:Troubleshooting

Cisco Internetwork Troubleshooting - Wikipedia, the free encyclopedia

The Cisco Internetwork Troubleshooting (commonly referred to as CIT) examination is one of four tests that are required for the Cisco Certified Network Professional certification.http://en.wikipedia.org/wiki/Cisco_Internetwork_Troubleshoot...

Ntdetect.com - Wikipedia, the free encyclopedia

Industry Standard Architecture-based devices Troubleshooting. To aid in troubleshooting, Microsoft has made available "debug" versions of Ntdetect.com which will display detailed ... http://en.wikipedia.org/wiki/Ntdetect.com

Bypass - Wikipedia, the free encyclopedia

Bypass may refer to: Bypass (computing), in computing, circumventing security features in hacking, or taking a different approach to an issue in troubleshootinghttp://en.wikipedia.org/wiki/Bypass
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Answers for Troubleshooting

Curly SueTroubleshooting?Curly Suetry this website: http://www.voiptroubleshooter.com/tools/index.htmlpaulogrospeIs there any troubleshooting software/application for mobile phone that is in a mobile phone already?paulogrospeMary CWhere can I find information on the latest troubleshooting techniques for circuit boards.?Mary CSo what do you want to know? Your worried that this is a field that is dominated by men, right? Your worried that any job you get in the field, that you are going to be scrutinzed ten times worse ...AimeeWhy should follow good working practice when troubleshooting and repairing IT Systems?Aimeeoffroad25177sbabeWe replaced the starter in a 1973International Scout- battery it still won't start-any troubleshooting ideas?offroad25177sbabeIgnition switch maybe? Either that or the neutral safety switch if it's automatic. Other than that, check all the connections.
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