- MEM18065B - Diagnose and repair digital equipment and components
Assessor Resource
MEM18065B
Diagnose and repair digital equipment and components
Assessment tool
Version 1.0
Issue Date: June 2024
This unit applies to diagnosis and repack of electronic sub-assemblies that can form part of electronic systems or equipment including digital hardware, communication, consumer audio/video, electronic appliances, scanning systems, security/fire systems, power supplies and test equipment etc.
All specifications and procedures are gained from schematics, circuit drawings, engineering data sheets or manufacturers' handbooks.
Unit MEM05002B (Perform high reliability soldering and desoldering) must also be selected if soldering of components is required to advanced or military specifications, where the reliability of electrical connections is critical, or where surface mounted devices are being soldered/de-soldered.
Where termination of cables is involved Unit MEM10002B (Terminate and connect electrical wiring) and/or Unit MEM18063B (Terminate signal and data cables) must 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 C7 (AQF level IV).
Unit Weight: 10
This unit covers locating faults in digital electronic equipment or sub-assemblies and replacing faulty components.
You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)
Prerequisites
Path 1
MEM05001B
Perform manual soldering/desoldering - electrical/electronic components
MEM09002B
Interpret technical drawing
MEM12004B
Perform precision electrical/electronic measurement
MEM18001C
Use hand tools
MEM18057B
Maintain/service analog/digital electronic equipment
Employability Skills
This unit contains employability skills.
Evidence Required
List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
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 digital equipment and components. 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 digital equipment and components, 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. 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 |
Submission Requirements
List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here
Assessment task 1: [title] Due date:
(add new lines for each of the assessment tasks)
Assessment Tasks
Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
Required skills |
Look for evidence that confirms skills in: obtaining relevant circuit diagrams, manuals, schematics, specifications, 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 electronic equipment/sub-assemblies, components, connections and terminations for conformance to specifications removing and replacing/repairing faulty components from the electronic equipment recording results tests on electronic equipment isolating electronic sub-assembly from the power supply adjusting/tuning and calibrating electronic equipment/sub-assemblies returning to service and testing to specification the repaired electronic equipment/sub-assembly reporting/recording return to service reproducing fault symptoms in the electronic equipment and verifying faults using appropriate test equipment and fault finding techniques refitting repaired/replaced components into the sub-assembly |
Required knowledge |
Look for evidence that confirms knowledge of: analogue and digital electronics including amplifiers, oscillators, power suppliers, filters, transistors, ICs, digital timers, gate arrays, transmitters, converters the function(s) of the electronic equipment/sub-assembly procedures for running built-in test functions errors indicated by built-in devices symptoms of the fault in the electronic equipment/sub-assembly the purpose of reproducing electronic equipment/sub-assembly fault symptoms test equipment and techniques necessary to confirm electronic equipment/sub-assembly faults procedures for verifying faults in electronic equipment/sub-assemblies procedures for isolating electronic equipment/sub-assemblies hazards associated with electronic equipment/sub-assemblies including electro-static discharge (ESD) procedures for removing sub-assemblies from electronic equipment tools and techniques to be used to remove/refit/repair/replace the faulty sub-assemblies/component from the electronic equipment procedures for testing faulty sub-assemblies operational specifications of the sub-assembly equipment and techniques to be used to test the faulty sub-assemblies/component probable causes of component failure procedures for removing faulty components from electronic equipment procedures for repairing/replacing faulty components procedures for fitting repaired/replaced components into sub-assemblies procedures for fitting repaired sub-assemblies into electronic equipment procedures for testing electronic equipment/sub-assembly performance operational specifications of the electronic equipment/sub-assembly/component test equipment and techniques necessary to check electronic equipment/sub-assembly performance safe work practices and procedures |
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, communication, consumer audio/video, electronic appliances, scanning systems, security/fire systems, power supplies and test equipment, etc. |
Fault finding techniques | Signal injection, substitution, monitoring, measurement, heating/cooling, sound, visual, touch, smell and the use of inbuilt software and hardware diagnostics |
Test equipment | Continuity testers, ammeters, voltmeters, cathode ray oscilloscopes, frequency counters, signal generators, digital probes etc. |
Components | 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 etc. |
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist
Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice | Yes | No | Comments/feedback |
---|---|---|---|
System/equipment functions and principles are determined and understood by reference to equipment manuals, circuit diagrams etc. | |||
Built-in test functions are run, and fault indicators error codes and appropriate maintenance records are checked and reviewed. | |||
Fault symptoms are reproduced where appropriate and verified, using appropriate fault finding techniques. | |||
Where appropriate, faulty equipment is isolated and removed from system using correct and appropriate tools and techniques. | |||
Equipment is checked and tested using correct and appropriate test equipment and fault finding techniques. | |||
Faulty component/s are identified and/or fault cause is isolated. | |||
Faulty component is removed where required using correct and appropriate tools and techniques. | |||
Faulty component is repaired/replaced in accordance with manufacturers' recommended procedures or to standard operating procedures. | |||
Repaired/replacement components are fitted in accordance with manufacturers' recommended procedure or to standard operating procedures using correct and appropriate tools and techniques. | |||
Where appropriate, repaired equipment is refitted to system using correct and appropriate tools and techniques. | |||
Systems/equipment is checked and tested for correct operational compliance to specifications utilising correct and appropriate test procedures and equipment. |
Forms
Assessment Cover Sheet
MEM18065B - Diagnose and repair digital equipment and components
Assessment task 1: [title]
Student name:
Student ID:
I declare that the assessment tasks submitted for this unit are my own work.
Student signature:
Result: Competent Not yet competent
Feedback to student
Assessor name:
Signature:
Date:
Assessment Record Sheet
MEM18065B - Diagnose and repair digital equipment and components
Student name:
Student ID:
Assessment task 1: [title] Result: Competent Not yet competent
(add lines for each task)
Feedback to student:
Overall assessment result: Competent Not yet competent
Assessor name:
Signature:
Date:
Student signature:
Date: