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Principles of Troubleshooting

Introduction to Troubleshooting – 2 hrs
This module will give the student the basic knowledge and understanding of troubleshooting processes and procedures, as well as lay the foundation for good troubleshooting flow.  Topics covered will include:

The Troubleshooting Process
Background information on why and how troubleshooting evolved and how the theory from this course can translate to real-world practice.

Troubleshooting Flow
Understanding that proper troubleshooting should be based on a methodical, repeatable process – utilizing controllable procedures, flowcharts and checklists.

Problem Solving
Using a logical approach to troubleshooting, various types of diagnostics tools and understanding change management.
 

Troubleshooting Techniques – 8 hrs
This module covers the major troubleshooting techniques, when and how to implement each, and issues that may arise.  Topics covered will include:

Binary Troubleshooting (aka Divide and Conquer)
Instead of working from the top-down or bottom-up, starting in the middle can eliminate half of the outcomes immediately.

Categorizing Symptoms
Understanding various failure modes and their associated symptoms, isolated vs. related symptoms, masking symptoms, etc.

Diagnostic Signals
Utilizing various diagnostic tools and signals, or built-in test equipment to help determine which element(s) are at fault.

Fault Isolation
Isolating suspected items to verify faults, systematic troubleshooting via component swap-out and bench testing.

Repetition
Understanding that verifiable analysis relies on consistent repetition of either the fault or the fix.

Functional Tests
Covers the use of various functional tests to verify faulty components and/or proper system operation following swap-outs or repairs.

Acceptance Tests
Verifying that the repairs or replacements work properly under real-world conditions.

Problem / Error Categories – 6 hrs
This module covers various types categories that can be used to describe problems and errors.  This module will serve to tie the first two together by examining how the different types of problems will require different troubleshooting techniques.  Topics covered will include:

Spurious Problems
Offers ways of tracking down intermittent problems to eliminate unnecessary component changes and repairs.

Sequential (or Dependent) Problems
Discusses problems which propagate “down-stream” or trip from one item to the next in order.

Overlapping Problems
Covers problems which are symptomatic issues stemming from other “masked” problems within the system.  Also discusses inter-relatedness among systems and how that can skew troubleshooting results.

System Conflicts
Discusses how two nominal systems can generate interference for each other.

System “Noise”
Covers the uncertainty applicable to certain systems where precise troubleshooting can be difficult or impossible to do while the system is in operation.

Out-of-Spec Issues
Covers a number of topics relating to defined tolerances and how small deviations can build on each other to cascade the entire system out of tolerance.

 

DETAILS:

This two-day, 16 hour course is designed to present the student with a base foundation of knowledge on the theory and principles of troubleshooting.

As indicated in the outline, teaching points are not specific to any single component, system, or discipline, focusing instead on sound logic and decision making use in troubleshooting.

To inquire about training, contact Sam Fischer:
904-317-3844
sfischer@aerocenter.org