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Elements and Performance Criteria

1. Prepare to troubleshoot amplifiers
   • Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for relevant work area are identified, obtained and applied
2. Risk control measures are applied in accordance with workplace procedures prior to commencing work
3. Nature of amplifier fault is obtained from documentation or from relevant person/s to determine the scope of work
4. Instructions for coordinating work with others are obtained from relevant person/s and applied
5. Materials required for work are determined in accordance with workplace procedures
6. Tools, equipment and testing devices required for work are obtained and checked for correct operation and safety
7. Troubleshoot amplifiers
   • Workplace risk control measures and procedures are applied
8. The need to test or measure live work is determined, as required, in accordance with WHS/OHS requirements and workplace procedures
9. Circuits are isolated where necessary in accordance with WHS/OHS requirements and workplace procedures
10. Fault finding is undertaken methodically using measured and calculated values of parameters relevant to amplifiers
11. Unexpected situations are dealt with safely and with the approval of relevant person/s
12. Fault finding is conducted efficiently minimising waste of materials, damage to apparatus, the surrounding environment or services applying sustainable energy practices
13. Complete work and document troubleshooting activities
    • Workplace risk control measures and procedures are applied
14. Worksite is cleaned and made safe in accordance with workplace procedures
15. Justification for troubleshooting solutions is provided in the required format
16. Work completion is documented in accordance with workplace procedures and relevant person/s notified

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.
Troubleshooting amplifiers must include at least the following:	troubleshooting the amplifier stages oftwo types of electronic apparatus two different types of amplifier faults.

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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 relevant risk identification, assessment, reporting and control requirements applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements applying sustainable energy principles and practices applying the principles of amplifiers coordinating work with relevant person/s dealing effectively with unplanned events determining live testing/measurement requirements methodically fault finding using measured and calculated values of parameters identifying and accessing materials, tools, apparatus and testing devices isolating circuits/machines/system troubleshooting amplifiers, including: applying methodical problem-solving methods calculating parameters correctly and accurately correctly and accurately taking measurements providing solutions to amplifier problems providing written justification for the solutions to problems.

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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 troubleshooting, including: fundamentals of amplifiers classes of power amplifier operation (basics) complementary-symmetry power amplifiers differential amplifiers multistage amplifier coupling methods negative feedback other solid-state power amplifier design relevant standards, codes and regulations single stage discrete amplifier: direct current (d.c.) characteristics small signal characteristics capacitive coupling relevant manufacturer specifications relevant safe work method statements (SWMS)/job safety assessments or risk mitigation processes relevant WHS/OHS legislated requirements relevant workplace documentation relevant workplace policies and procedures.

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