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Elements and Performance Criteria

  1. Prepare to work on musical equipment circuits
  2. Solve musical equipment circuits’ problems
  3. Complete work and document problem solving activities

Required Skills

This describes the essential skills and knowledge and their level required for this unit

Evidence shall show that knowledge has been acquired of safe working practices and solving problems in musical equipment circuits

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies

KSEHA Electronic Musical Instruments

Evidence shall show an understanding of electronic musical instruments applying safe working practices and relevant Standards Codes and Regulations to an extent indicated by the following aspects

T Vacuum tubes encompassing

history

construction

principles of thermionic emission

advantages and disadvantages compared with solid state devices

applications

T Vacuum diodes encompassing

schematic symbol

terminals

operation and typical voltages

rectifier circuits

typical devices and part numbers

T Triodes tetrodes and pentodes encompassing

schematic symbols

terminals

operation and typical voltages

bias requirements

AC parameters

T Small signal valve amplifier stages encompassing

typical devices and part numbers

typical configurations

quiescent conditions

AC conditions gain input impedance bandwidth

T Valve power amplifier stages encompassing

typical devices and part numbers

typical pushpull configurations

output transformer

reflected impedance

parallel output arrangements

quiescent conditions

AC conditions

output power

T Complete valve amplifiers encompassing

preamp stages

coupling methods

gain and master volume controls

clean and dirty channels

channel mixing

valve tone controls

spring reverb systems

tremolo circuits

effect sends

foot switches

differential amplifier

phase splitter

pushpull output configurations

output transformer

output impedance selection

speaker connections

local and global feedback arrangements

T Valve amplifier troubleshooting and servicing encompassing

safety considerations high voltages heat and glass

testing procedures and importance of testing with a load

troubleshooting techniques

typical faults

locating and replacing faulty components

T Electronic musical instruments encompassing

Electric guitar and bass wiring systems

Active pickups

Effects pedals and racks principles of operation and basic circuits

Electric keyboards basic operation and circuits

Troubleshooting and repairing musician instruments

T Advance electronic measuring instruments encompassing

Testmeasuring devices and their application examples are frequency counters and synthesisers spectrum analysers noise and distortion meters and RF communications service monitor

T Connection of testmeasuring devices into a circuit encompassing

safety procedures

loading and matching

storage and delay

circuit arrangement of testmeasuring devices

T Taking and interpreting readings

T Notion of decibels including dBm dBr dBu dBo

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria Required Skills and Knowledge the Range Statement and the Assessment Guidelines for this Training Package

The Evidence Guide forms an integral part of this unit It must be used in conjunction with all parts of the unit and performed in accordance with the Assessment Guidelines of this Training Package

Overview of Assessment

Longitudinal competency development approaches to assessment such as Profiling require data to be reliably gathered in a form that can be consistently interpreted over time This approach is best utilised in Apprenticeship programs and reduces assessment intervention It is the Industrys preferred model for apprenticeships However where summative or final assessment is used it is to include the application of the competency in the normal work environment or at a minimum the application of the competency in a realistically simulated work environment It is recognised that in some circumstances assessment in part or full can occur outside the workplace However it must be in accord with Industry and Regulatory policy in this regard

Methods chosen for a particular assessment will be influenced by various factors These include the extent of the assessment the most effective locations for the assessment activities to take place access to physical resources additional safety measures that may be required and the critical nature of the competencies being assessed

The critical safety nature of working with electricity electrical equipment gas or any other hazardous substancematerial carries risk in deeming a person competent Hence sources of evidence need to be rich in nature so as to minimise error in judgment

Activities associated with normal every day work have a bearing on the decision as to how much and how detailed the data gathered will contribute to its richness Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practised These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package

Critical aspects of evidence required to demonstrate competency in this unit

Before the critical aspects of evidence are considered all prerequisites shall be met

Evidence for competence in this unit shall be considered holistically Each Element and associated performance criteria shall be demonstrated on at least two occasions in accordance with the Assessment Guidelines UEE Evidence shall also comprise

A representative body of work performance demonstrated within the timeframes typically expected of the discipline work function and industrial environment In particular this shall incorporate evidence that shows a candidate is able to

Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the performance criteria and range statement

Apply sustainable energy principles and practices as specified in the performance criteria and range statement

Demonstrate an understanding of the essential knowledge and associated skills as described in this unit It may be required by some jurisdictions that RTOs provide a percentile graded result for the purpose of regulatory or licensing requirements

Demonstrate an appropriate level of skills enabling employment

Conduct work observing the relevant Anti Discrimination legislation regulations polices and workplace procedures

Demonstrated performance across a representative range of contexts from the prescribed items below

Solve problems in musical equipment circuits as described in Range and including

Using methodical problem solving methods

Taking measurements correctly and accurately

Calculating parameters correctly and accurately

Providing solution to componentcircuit problems

Providing written justification for the solutions to problems

Dealing with unplanned events by drawing on essential knowledge and skills to provide appropriate solutions incorporated in the holistic assessment with the above listed items

Note

Successful completion of relevant vendor training may be used to contribute to evidence on which competency is deemed In these cases the alignment of outcomes of vendor training with performance criteria and critical aspects of evidence shall be clearly identified

Context of and specific resources for assessment

This unit contains Employability Skills

This unit should be assessed as it relates to normal work practice using procedures information and resources typical of a workplace This should include

OHS policy and work procedures and instructions

Suitable work environment facilities equipment and materials to undertake actual work as prescribed by this competency standard unit

These should be part of the formal learningassessment environment

Note

Where simulation is considered a suitable strategy for assessment it must ensure that the conditions for assessment are authentic and as far as possible reproduce and replicate the workplace and is consistent with the approved industry simulation policy

The resources used for assessment should reflect current industry practices in relation to solving problems in musical equipment circuits

Method of assessment

This unit shall be assessed by methods given in Volume Part Assessment Guidelines

Note

Competent performance with inherent safe working practices is expected in the Industry to which this competency standard unit applies This requires that the specified essential knowledge and associated skills are assessed in a structured environment which is primarily intended for learningassessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and skills described in this unit

Concurrent assessment and relationship with other units

For optimisation of training and assessment effort competence in this unit may be assessed concurrently with unit

UEENEEHA Repairs basic electronic apparatus faults by replacement of components

UEENEEH102A Repairs basic electronic apparatus faults by replacement of components

UEENEEHA Troubleshoot digital subsystems

UEENEEH112A Troubleshoot digital sub-systems

UEENEEHA Troubleshoot resonance circuits in an electronic apparatus

UEENEEH114A Troubleshoot resonance circuits in an electronic apparatus

UEENEEHA Develop software solutions for microcontroller based systems

UEENEEH115A Develop software solutions for microcontroller based systems

UEENEEHA Find and repair microwave amplifier section faults in electronic apparatus

UEENEEH116A Find and repair microwave amplifier section faults in electronic apparatus

UEENEEHA Troubleshoot basic amplifier circuits

UEENEEH139A Troubleshoot basic amplifier circuits

The critical aspects of occupational health and safety covered in unit UEENEEEA and other discipline specific occupational health and safety units shall be incorporated in relation to this unit

The critical aspects of occupational health and safety covered in unit UEENEEE101A and other discipline specific occupational health and safety units shall be incorporated in relation to this unit.


Range Statement

10) This relates to the unit of competency as a whole providing the range of contexts and conditions to which the performance criteria apply. It allows for different work environments and situations that will affect performance.

This competency standard unit shall be demonstrated using a representative range of musical equipment circuits in solving at least two of the following types of musical equipment circuits problems:

Determining the operating parameters of a valve amplifier and musical instrument circuit.

Altering an existing valve amplifier or musical instrument circuit section to comply with specified operating parameters

Developing a valve amplifier section or musical instrument circuit to comply with a specified function and operating parameters

Finding and repairing a fault in a valve amplifier and musical instrument circuit section of an electronic apparatus

Generic terms are used throughout this Vocational Standard shall be regarded as part of the Range of Variables in which competency is demonstrated. The definition of these and other terms that apply are given in Volume 2, Part 2.1.