- MEM18066B - Diagnose and repair microprocessor-based equipment
MEM18066B
Diagnose and repair microprocessor-based equipment
Application
This unit applies to situations in which the individual has sufficient information and access to microprocessor components to diagnose the functioning of elements within the microprocessor. This unit requires understanding of machine and assembly language and address and bus systems. All specifications and procedures are gained from schematics, circuit drawings, instruction sets, flow charts and data sheets. For routine fault finding within microprocessor systems, refer to Unit MEM18057B (Maintain/service analog/digital electronic equipment). For diagnosis of analog components, Unit MEM18056B (Diagnose and repair analog equipment and components) should also be selected. Band: This unit has dual status and is to be regarded as both a Specialisation band A unit and Specialisation band B unit for progression to C5 (AQF level V). Unit Weight: 6 |
Prerequisites
Path 1 | Perform manual soldering/desoldering - electrical/electronic components | |
Interpret technical drawing | ||
Perform precision electrical/electronic measurement | ||
Perform engineering measurements | ||
Use hand tools | ||
Maintain/service analog/digital electronic equipment | ||
Diagnose and repair digital equipment and components |
Elements and Performance Criteria
ELEMENT | PERFORMANCE CRITERIA |
1. Locate faults | 1.1. Equipment function and principles are determined and understood by reference to schematics, circuit diagrams, flow charts, equipment manuals etc. 1.2. Built-in test functions are run and results are interpreted correctly. 1.3. Fault symptoms are reproduced where appropriate and verified using appropriate fault finding techniques. 1.4. Faulty or defect component/s are identified and/or fault cause is isolated using appropriate test equipment. |
2. Replace/repair faulty components | 2.1. Faulty component is renewed using/ correct and appropriate tools and techniques. 2.2. Faulty component/s are repaired/replaced in accordance with manufacturers' recommended procedure or standard operating procedure. 2.3. Repaired/replaced component/s are fitted using correct and appropriate tools and techniques. 2.4. 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, reading/recording and diagnosing built-in fault indicators obtaining error code interpretation documents running test functions and recording faults and/or equipment status indicated by built-in test functions/displays checking microprocessor-based equipment, electronic equipment/sub-assemblies, components, connections and terminations for conformance to specifications removing and replacing/repairing faulty components and/or microprocessor from the electronic equipment recording results tests undertaken on the microprocessor-based equipment isolating the microprocessor-based equipment from the power supply adjusting/tuning and calibrating the microprocessor-based equipment returning to service and testing to specification the repaired microprocessor-based equipment reporting/recording return to service reproducing fault symptoms in the microprocessor-based equipment and verifying faults using appropriate test equipment and fault finding techniques refitting repaired/replaced components into the microprocessor-based equipment |
Required knowledge |
Look for evidence that confirms knowledge of: microprocessor systems, architecture, circuits and dedicated chips function(s) of the microprocessor-based equipment electronic principles utilised in the operation of the microprocessor-based equipment procedures for running built-in test functions errors indicated by built-in devices symptoms of the fault in the microprocessor-based equipment purpose of reproducing fault symptoms test equipment and fault finding techniques necessary to confirm microprocessor-based equipment faults procedures for verifying faults in microprocessor-based equipment procedures for testing faulty microprocessor-based equipment hazards associated with microprocessor-based equipment including electro-static discharge (ESD) equipment and techniques to be used to test the faulty microprocessor-based equipment probable causes of component failure procedures, tools and techniques for removing and/or repairing faulty components from microprocessor-based equipment reasons for identifying the faulty component for repair or replacement procedures, tools and techniques for refitting repaired/ replaced components into the microprocessor-based equipment procedures for testing microprocessor-based equipment performance operational specifications of the microprocessor-based equipment test equipment and fault finding techniques necessary to check the microprocessor-based 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 microprocessor-based 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 microprocessor-based 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, supervisor's 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 |
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. |
Sectors
Unit sector |
Competency Field
Maintenance and diagnostics |
Employability Skills
This unit contains employability skills. |
Licensing Information
Not Applicable