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Elements and Performance Criteria

1. Prepare to fault find analogue circuits
   • WHS/OHS requirements and workplace procedures are identified and applied
2. Hazards are identified, risks assessed and control measures implemented
3. Safety hazards not previously identified are reported on job safety assessment and advice on risk control measures is sought from relevant person/s
4. Extent of faults is determined from reports, other relevant documentation and discussions with relevant person/s
5. Relevant person/s is consulted to ensure work is coordinated with others
6. Tools, equipment and testing devices required to diagnose faults are obtained in accordance with workplace procedures and checked for correct operation and safety
7. Fault find and repairanalogue circuits
   • WHS/OHS risk control measures and procedures for carrying out the work are followed
8. Need to test or measure live electrical components is determined in accordance with workplace procedures
9. Circuits/machines/plant are checked and isolated in accordance with workplace procedures
10. Logical diagnostic methods are applied to electronic control system apparatus faults by employing measurements and estimations of system operating parameters
11. Scenarios are tested as suspected cause of system faults
12. Fault causes are identified and relevant person/s engaged where fault is outside scope of analogue circuits and components
13. Faults in electronic components of control system are rectified
14. System is tested and verified as operating to specified job requirements
15. Unplanned situations are responded to in accordance with workplace procedures in a manner that minimises risk to personnel and equipment
16. Methods for dealing with unexpected situations are selected based on safety and specified work outcomes
17. Diagnosis and rectification work activities are performed using sustainable energy principles and practices without waste of materials, damaging apparatus, the surrounding environment or services
18. Complete and report fault-find and repair activities
    • WHS/OHS work completion risk control measures and procedures are followed
19. Work site is made safe in accordance with workplace safety procedures
20. Rectification of faults is documented in accordance with workplace procedures
21. Relevant person/s is notified of system fault rectification in accordance with workplace procedures

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment. Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.
Fault finding and repairing must include at least four of the following faults in analogue circuits and components:	open circuit short circuit incorrect or failed connections insulation failure unsafe condition apparatus/component failure related mechanical failure

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least two separate occasions and include:

applying diagnostic methods applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including implementing risk control measures applying sustainable energy principles and practices completing and reporting faults and repairs consulting relevant person/s dealing with unplanned events/situations in accordance with workplace procedures in a manner that minimises risk to personnel and equipment documenting fault rectification finding and repairing faults of analogue circuits identifying, rectifying and determining extent of faults and causes isolating circuits/machines/plant obtaining tools, equipment and testing devices rectifying faults in system analogue circuits and components testing and measuring live electrical components using fault scenarios to test causes of system faults verifying the control system operates correctly.

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Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

amplifier fundamentals, including: the purpose and application of amplifiers the basic characteristics of small signal amplifiers the ideal operational amplifier basic operational amplifier configurations, including: various operational amplifier circuit configurations and where they are used measured and calculated values of gain and output voltage for various operational amplifier configurations circuit configurations, including: inverting non-inverting voltage follower summing comparators Schmitt trigger differential configurations operational amplifier limitations, including: use of frequency compensation offset null bias compensation slew rate frequency response bandwidth noise figures single-stage amplifiers, including: determination of direct current (d.c.) bias conditions for a single-stage amplifier small signal terminal characteristics of single-stage amplifiers effects of coupling and by-pass capacitors in single-stage amplifiers amplifier applications, including: operation of multi-stage amplifiers effects of component values and frequency response negative feedback loop in multi-stage amplifiers negative feedback and amplifier parameters effects on the output voltage when amplifiers are subjected to control signal overdrive, bias faults and amplifying device faults operational amplifier /diode circuits, including: clippers clamp circuits precision rectifiers oscillators, including: oscillator circuits using operational amplifiers sine wave square wave triangular wave sawtooth operational amplifier /resistance/capacitance (RC) circuits, including: integrator differentiator function generators filters, including: active filter circuits first and second order low, high and band pass circuits timers, including operation of typical timer integrated circuits power amplifiers including: power output integrated circuits power amplifiers using operational amplifiers power supplies multi-stage circuits, including: circuits using several different operational amplifier configurations fault-finding procedures analogue circuit faults analogue circuits and components in electronic control systems diagnostic methods relevant job safety assessments or risk mitigation processes, including risk control measures relevant manufacturer specifications relevant WHS/OHS legislated requirements relevant workplace documentation relevant workplace policies and procedures sustainable energy principles and practices system testing and verification techniques.

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