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Elements and Performance Criteria

1. Locate faults
   • Equipment function and principles are determined and understood by reference to schematics, circuit diagrams, flow charts, equipment manuals etc.
   • Built-in test functions are run and results are interpreted correctly.
   • Fault symptoms are reproduced where appropriate and verified using appropriate fault finding techniques.
   • Faulty or defect component/s are identified and/or fault cause is isolated using appropriate test equipment.
2. Replace/repair faulty components
   • Faulty component is renewed using/ correct and appropriate tools and techniques.
   • Faulty component/s are repaired/replaced in accordance with manufacturers' recommended procedure or standard operating procedure.
   • Repaired/replaced component/s are fitted using correct and appropriate tools and techniques.
   • Equipment is checked and tested for operational compliance to specifications utilising correct and appropriate test procedures and equipment.

Required Skills

Required skills

Look for evidence that confirms skills in obtaining relevant circuit diagrams manuals specifications schematics maintenance records supplier catalogues locating readingrecording and diagnosing builtin fault indicators obtaining error code interpretation documents running test functions and recording faults andor equipment status indicated by builtin test functionsdisplays checking microprocessorbased equipment electronic equipmentsubassemblies components connections and terminations for conformance to specifications removing and replacingrepairing faulty components andor microprocessor from the electronic equipment recording results tests undertaken on the microprocessorbased equipment isolating the microprocessorbased equipment from the power supply adjustingtuning and calibrating the microprocessorbased equipment returning to service and testing to specification the repaired microprocessorbased equipment reportingrecording return to service reproducing fault symptoms in the microprocessorbased equipment and verifying faults using appropriate test equipment and fault finding techniques refitting repairedreplaced components into the microprocessorbased equipment

Required knowledge

Look for evidence that confirms knowledge of microprocessor systems architecture circuits and dedicated chips functions of the microprocessorbased equipment electronic principles utilised in the operation of the microprocessorbased equipment procedures for running builtin test functions errors indicated by builtin devices symptoms of the fault in the microprocessorbased equipment purpose of reproducing fault symptoms test equipment and fault finding techniques necessary to confirm microprocessorbased equipment faults procedures for verifying faults in microprocessorbased equipment procedures for testing faulty microprocessorbased equipment hazards associated with microprocessorbased equipment including electrostatic discharge ESD equipment and techniques to be used to test the faulty microprocessorbased equipment probable causes of component failure procedures tools and techniques for removing andor repairing faulty components from microprocessorbased equipment reasons for identifying the faulty component for repair or replacement procedures tools and techniques for refitting repaired replaced components into the microprocessorbased equipment procedures for testing microprocessorbased equipment performance operational specifications of the microprocessorbased equipment test equipment and fault finding techniques necessary to check the microprocessorbased equipment performance safe work practices and procedures

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package
Overview of assessment	A person who demonstrates competency in this unit must be able to diagnose and repair microprocessorbased equipment Competency in this unit cannot be claimed until all prerequisites have been satisfied
Critical aspects for assessment and evidence required to demonstrate competency in this unit	Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria including required knowledge and be capable of applying the competency in new and different situations and contexts
Context of and specific resources for assessment	This unit may be assessed on the job off the job or a combination of both on and off the job Where assessment occurs off the job that is the candidate is not in productive work then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team The assessment environment should not disadvantage the candidate This unit could be assessed in conjunction with any other units addressing the safety quality communication materials handling recording and reporting associated with diagnosing and repairing microprocessorbased equipment or other units requiring the exercise of the skills and knowledge covered by this unit
Method of assessment	Assessors should gather a range of evidence that is valid sufficient current and authentic Evidence can be gathered through a variety of ways including direct observation supervisors reports project work samples and questioning Questioning techniques should not require language literacy and numeracy skills beyond those required in this unit of competency The candidate must have access to all tools equipment materials and documentation required The candidate must be permitted to refer to any relevant workplace procedures product and manufacturing specifications codes standards manuals and reference materials
Guidance information for assessment

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Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Equipment	Digital hardware, sub-assemblies of systems or discrete equipment used in computer, communication, consumer audio/video, electronic appliances, scanning systems, security/fire systems, power supplies and test equipment etc.
Fault finding techniques	Include signal injection, substitution, monitoring, measurement, heating/cooling, sound, visual, touch, smell and the use of inbuilt software and hardware diagnostics
Component/s	Discrete component assemblies or individual components such as resistors, switching devices, capacitors, transformers, solenoids, tubes, semi-conductors, transistors, ICs, digital timers, gate arrays, transmitters, converters and microprocessors
Test equipment	Continuity testers, ammeters, voltmeters, cathode ray oscilloscopes, frequency counters, signal generators, pulse generators, computer and computer software, data analysers and digital probes etc.

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