This unit involves the skills and knowledge required to troubleshoot resonance circuits in an electronic apparatus.

It includes working safely, applying problem-solving procedures, and providing solutions derived from measurements and calculations to problems in resonance circuits.

Permits may be required for some work environments, such as confined spaces, working aloft, near live electrical apparatus and site rehabilitation.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare to troubleshoot resonance circuits

1.1

Work health and safety (WHS)/occupational health and safety (OHS) processes and workplace procedures for a given work area are identified, obtained and applied

1.2

WHS/OHS risk control work preparation measures and workplace procedures are followed

1.3

Scope of fault is obtained from documentation and/or work supervisor to determine work to be undertaken

1.4

Advice is sought from work supervisor to ensure the work is coordinated effectively with others

1.5

Sources of materials required for work are determined in accordance with workplace procedures

1.6

Tools, equipment and testing devices required for work are obtained and checked for correct operation and safety

2

Solve problems in resonance circuits

2.1

WHS/OHS risk control work measures and workplace procedures are followed

2.2

Need to test and measure live work is determined in accordance with WHS/OHS requirements and workplace procedures

2.3

Circuits are checked and isolated in accordance with WHS/OHS requirements and workplace procedures

2.4

Fault finding of resonance circuits is conducted using measured and calculated values of parameters in accordance with workplace procedures

2.5

Unplanned situations are dealt with safely and with the approval of relevant person/s in accordance with workplace procedures

2.6

Fault-finding activities are carried out efficiently without waste of materials or damage to apparatus, the surrounding environment or services using sustainable energy practices

3

Complete work and document troubleshooting activities

3.1

WHS/OHS work completion risk control measures and workplace procedures are followed

3.2

Worksite is cleaned and made safe in accordance with workplace procedures

3.3

Work completion is documented and relevant person/s notified in accordance with workplace procedures

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 relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including:

using risk control measures

carrying out fault-finding activities without waste and damage to materials, apparatus, the environment or services

checking and isolating circuits

completing work and documenting troubleshooting activities

dealing with unplanned situations safely and with the approval of relevant person/s

demonstrating correct set-up and usage of oscilloscope for alternating current (a.c.) measurements

obtaining and checking tools, equipment and testing devices for correct operation and safety

obtaining scope of the fault from documentation and/or work supervisor

preparing to troubleshoot resonance circuits

seeking advice from work supervisor to ensure work is coordinated effectively

solving problems in resonance circuits

testing and measuring live circuits

using sustainable energy practices

calculating resonance parameters, including reactance and resonant frequency from supplied or measured values

making measurements on resonance circuits

making adjustments to resonance circuits.

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:

filter characteristics, including bandwidth, roll off, attenuation and response curves

filter principles and types, including high pass, low pass, bandpass and band-reject

principles of inductance and inductive reactance

impedance, voltage and current characteristics of parallel-resonant circuits

impedance, voltage and current characteristics of series-resonant circuits

measuring equipment for a.c. circuits

Ohm’s law for a.c. circuits

power factor principles

problem-solving techniques

quality factor (Q) principles

relevant checking and isolation methods for circuits

relevant circuit measurements and parameter values calculations

relevant industry standards

relevant job safety assessments or risk mitigation processes

relevant manufacturer specifications and operating instructions

relevant materials, tools, equipment and testing devices

relevant resonance circuits

relevant resonance formulae and definitions

relevant testing and measuring methods

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace instructions, policies and procedures

series, parallel and series-parallel a.c. circuits

sinusoidal alternating voltage and current principles

sustainable energy principles

transformer principles and construction.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in suitable workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated suitable workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or simulations

relevant and appropriate materials, tools, facilities and equipment currently used in industry

resources that reflect current industry practices in relation to troubleshooting frequency dependent circuits

applicable documentation, including workplace procedures, equipment specifications, regulations, codes of practice and operation manuals.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

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.

Solving resonance circuit problems must include at least two of the following:

determining the operating parameters of an existing circuit

altering an existing circuit to comply with specified operating parameters

developing circuits to comply with specified function and operating parameters

Electrotechnology

Electronics and Communications