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Evidence Guide: UEEEC0070 - Troubleshoot faults in television receivers

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

UEEEC0070 - Troubleshoot faults in television receivers

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare to identify television receiver faults

  1. Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified and applied
Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified and applied

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Nature of the television receiver fault is obtained from documentation or from work supervisor to determine the scope of work to be undertaken

Completed
Date:

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Advice is sought from work supervisor to ensure the work is coordinated effectively with relevant person/s

Completed
Date:

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Materials required for the work are determined in accordance with workplace procedures

Completed
Date:

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Tools, equipment and testing devices needed to carry out work are obtained in accordance with workplace procedures and checked for correct operation and safety

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Find television receiver faults

  1. WHS/OHS risk control measures and workplace procedures for carrying out work activities are followed
WHS/OHS risk control measures and workplace procedures for carrying out work activities are followed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Need to inspect, test and measure live work is determined in accordance with WHS/OHS requirements and, as required, conducted in accordance with workplace safety procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apparatus is checked and isolated in accordance with WHS/OHS requirements and workplace procedures

Completed
Date:

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Fault finding is approached methodically, using measured and calculated values of apparatus parameters, chrominance and luminance signal processing and scanning and deflection sections of television receivers

Completed
Date:

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Apparatus components are dismantled, as required, and parts stored to protect against loss or damage

Completed
Date:

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Faulty components are identified, rechecked and fault status confirmed

Completed
Date:

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Materials/replacement parts required to rectify faults are sourced and obtained in accordance with workplace procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Effectiveness of the repair is tested in accordance with workplace procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apparatus is reassembled, finally tested and prepared for return to service

Completed
Date:

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Unplanned situations are dealt with safely and with the approval of an authorised person/s

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Repair television receiver fault

  1. WHS/OHS risk control measures and workplace procedures for carrying out repair work are followed
WHS/OHS risk control measures and workplace procedures for carrying out repair work are followed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Materials required for repair work are sourced and obtained in accordance with workplace procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Repairs are affected efficiently without damage to other components, apparatus or circuits

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Effectiveness of the repair is inspected and tested in accordance with workplace procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apparatus is reassembled, inspected and final functional test completed in preparation for return to customer

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete and report television receiver fault-finding and repair activities

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work area is cleaned and made safe in accordance with workplace procedures

Completed
Date:

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Written justification is recorded for television receiver repairs to apparatus

Completed
Date:

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

Completed
Date:

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Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge

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 sustainable energy principles and practices

completing and reporting television receiver fault-finding and repair activities

dealing with unplanned situations in accordance with workplace procedures in a manner that minimises risk to personnel and equipment

finding and repairing faults in television receiver

finding television receiver faults efficiently

implementing relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, workplace procedures and practices, including the use of risk control measures

providing written justification for television receiver repairs

replacing television receiver components without damage

using methodical television receiver fault-finding techniques.

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:

automatic gain control (AGC) circuits in typical television receivers, including operation and fault-finding techniques

components providing radio frequency (RF) interference suppression protection, rectification and filtering in a typical television receiver power supply

operation of a typical television synchronous demodulator circuit

operation of series regulated power supplies as used in typical television receiver/monitors and recording device

operation of the switched-mode power supply (SMPS) control circuits in a television/video cassette recorder (VCR)

operation of tuners found in typical television receivers

operation of typical self-oscillating television/VCR/switched-mode power supply (SMPS) circuits

relevant job safety assessments or risk mitigation processes

relevant manufacturer specifications

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace policies and procedures

safe working procedures to test power supply circuitry of a typical 'hot chassis' television receiver

sub-system arrangements and the operating principles of series and shunt type television receiver/VCR/SMPS

techniques for locating and repairing faults in a defective SMPS in a typical television monitor or VCR

techniques for locating and repairing faults in typical vision intermediate frequency (IF) circuits

techniques for locating and repairing faulty components.

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 faults in television receivers must include at least the following:

two television receiver faults in signal processing and scanning and deflection sections of television receivers