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268 - Maintaining/ Troubleshooting Computer Systems

268 - Maintaining/ Troubleshooting Computer Systems

Covers the maintenance of microprocessor-based equipment, including preventive maintenance. Describes diagnostic procedures and takes a "hands-on" look at many types of test equipment, including oscilloscopes, logic analyzers, and in-circuit emulators. Emphasizes the importance of thorough documentation in all areas. Discusses general troubleshooting guidelines and covers troubleshooting aids and accessories.

TPC Training Systems is authorized by IACET to offer 0.5 CEUs for this program.

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  • Course Manual $54.00

Lesson 1 - Preventive Maintenance


Causes of component failure and malfunction; Noise; Hardware and software maintenance; Environmental operating conditions

Learning Objectives:
– Describe the preventive maintenance requirements of a microprocessor-based system.
– Identify potential maintenance problems of microprocessor-based equipment and propose solutions to those problems.
– Discuss ways to limit the undesirable effects that environmental operating conditions can have on a device.
– Develop an overall plan for a preventive maintenance program.

Lesson 2 - Diagnostics


Hardware review; Bus timing; Logic levels; Diagnostic software; In-circuit debugging; Clock timing signals; System self test

Learning Objectives:
– Explain the best way to go about troubleshooting hardware problems in a microcomputer system.
– Explain what an in-circuit debugger does.
– Describe static stimulus testing.
– Discuss the use of diagnostic and self-test software programs.
– List at least five specialized component testers that can be used to troubleshoot microcomputer systems.

Lesson 3 - Test Equipment


Logic probes and pulsers; Current probes; Oscilloscopes; Logic and signature analyzers; In-circuit emulators

Learning Objectives:
– Discuss the advantages and disadvantages of using logic probes to troubleshoot microcomputer system problems.
– Describe the major features of a modern digital oscilloscope.
– Describe the difference between a logic analyzer and an oscilloscope.
– Explain how a signature analyzer is used to isolate a defective part.
– Identify the purpose of an in-circuit emulator.
– List some test instruments that are available as microcomputer-based printed circuit cards.

Lesson 4 - Documentation


Hardware and software documentation; Documentation problems; Operational documentation

Learning Objectives:
– Identify the different types of hardware documentation required for a microprocessor-based system, and describe their uses.
– Identify the different types of software documentation required for a microprocessor-based system, and describe their uses.
– Explain the necessity of operational documentation for a microprocessor-based system.

Lesson 5 - Troubleshooting Guidelines


Flowcharts; Using test equipment; Intermittent problems; Aids for troubleshooting software; Hardware troubleshooting

Learning Objectives:
– List the basic steps to be followed when troubleshooting a microcomputer system.
– Discuss the use of flowcharts and test equipment in troubleshooting microcomputer systems.
– Identify some aids for troubleshooting software.
– Describe four hardware accessories that simplify and speed up troubleshooting.

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