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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Rework and repair electronics assemblies 
SAQA US ID UNIT STANDARD TITLE
259166  Rework and repair electronics assemblies 
ORIGINATOR
SGB Electronics 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 10 - Physical, Mathematical, Computer and Life Sciences Information Technology and Computer Sciences 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 5  Level TBA: Pre-2009 was L5  15 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This Unit Standard is intended all persons in the electronics field who have the responsibility of repairing and modifying electronic circuits board. Learners will be equipped with knowledge and skills to be able to use the relevant procedures to remove and replace specific components without causing further damage on the assembly. Learners will also be able to successfully repair damaged circuits boards.

Learners credited with this Unit Standard are capable of:
  • Setting up work area for repairing and reworking electronic assemblies.
  • Removing components from the PC boards.
  • Repairing damaged PC boards.
  • Replacing components on PC board.
  • Working with both through-hole and surface mount technologies.
  • Removing coatings and encapsulations. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    It is assumed that learners are competent in:
  • Communication skills at NQF Level 4.
  • Maths Literacy at NQF Level 4. 
    		•

    UNIT STANDARD RANGE 
    Soldering may refer to but is not limited to:
  • Wires and terminals.
  • Through-hole mounting.
  • Surface mounts technologies.

    Standards may include but are not limited to:
  • Set standards refer to the J-STD-001, IPC-7711, IPC-7721, IPC-A-600, IPC-A-610, and IPC/WHMA-A-620. 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Set up work area for repairing and reworking electronic assemblies. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The workplace layout is set up to conform to organisational standards to avoid uncontrolled hazards. 

    ASSESSMENT CRITERION 2 
    Equipment, settings and materials are selected in order to meet the type of repair to be carried out. 

    ASSESSMENT CRITERION 3 
    Measures to prevent damage caused by electrostatic discharge in the components and assemblies are applied in terms of the set standards. 

    ASSESSMENT CRITERION 4 
    Tools and equipment to be used are selected and calibrated to perform rework. 

    SPECIFIC OUTCOME 2 
    Remove components from the PC boards. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    An understanding of the PC Board components in terms of their types and sizes. 

    ASSESSMENT CRITERION 2 
    Different types of PC boards are identified and explained in terms of their features. 
    ASSESSMENT CRITERION RANGE 
    Different types include but are not limited to Rigid printed boards and assemblies, Flexible printed boards and assemblies, Discrete wiring boards and assemblies, Ceramic boards and assemblies.
     

    ASSESSMENT CRITERION 3 
    Different types of components are identified and explained in terms of their features and characteristics. 
    ASSESSMENT CRITERION RANGE 
    Different types of components include but are not limited to through-hole components (radial and axial) and surface mount components. Surface mount components include PGA, Chip, Leadless, SOT, Gull Wing, J-Lead, BGA/CSP and PLCC.
     

    ASSESSMENT CRITERION 4 
    Tools and materials necessary to remove components and repair PC boards are identified and selected to deliver the highest level of conformance. 
    ASSESSMENT CRITERION RANGE 
    Highest level of conformance refers to when the procedures most closely duplicates the physical characteristics of the original and most probably complies with all the functional, environmental and serviceability. While lowest level of conformance refers to the significant variance with the physical character of the original and may vary with many of the electrical, functional, environmental and serviceability factors.
     

    SPECIFIC OUTCOME 3 
    Repair damaged PC boards. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Coating on the PC board is identified in order to determine the procedure to be followed for its removal. 

    ASSESSMENT CRITERION 2 
    Types of repairs that have to be performed are identified in terms of the defects detected. 

    ASSESSMENT CRITERION 3 
    Defects detected are assessed/evaluated in order to determine the extent of the damage. 

    ASSESSMENT CRITERION 4 
    Repairs are carried out in accordance with the IPC standards. 
    ASSESSMENT CRITERION RANGE 
    Repairs include but are not limited to legend/markings, blisters and delamination, bow and twist, hole repair, key and slot repair, base material, conductor repair, land repair and jumper wire installation.
     

    SPECIFIC OUTCOME 4 
    Replace components on PC board. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The replacement and soldering of components on the PC board are carried out in accordance with the IPC J-STD-001 standards. 

    ASSESSMENT CRITERION 2 
    Problem-solving skills are demonstrated through the selection of procedures and tools to deal with unique situations. 

    ASSESSMENT CRITERION 3 
    The environment in which the assembly will function is considered when selecting the necessary soldering techniques. 

    ASSESSMENT CRITERION 4 
    Specialised tools to replace the components on the PC board are selected and calibrated to ensure successful replacement of surface mount technology. 

    ASSESSMENT CRITERION 5 
    Thermal mass properties of the assembly is understood in order to carry out successful repairmen of the assembly. 
    ASSESSMENT CRITERION RANGE 
    Thermal mass refers to heat capacity of the solder joint.
     

    SPECIFIC OUTCOME 5 
    Remove coatings and encapsulations. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Types of coatings and encapsulations used on the assembly are identified in order to select the removal procedure. 
    ASSESSMENT CRITERION RANGE 
    Types of coatings include but are not limited to Type AR, Type ER, Type SR, Type UR and Type XY.
     

    ASSESSMENT CRITERION 2 
    Conformal of coating removal identification is explained by means of a flow chart. 

    ASSESSMENT CRITERION 3 
    Different procedures to remove the coating are explained in terms of their application. 
    ASSESSMENT CRITERION RANGE 
    Different procedures include but are not limited to solvent, peeling, thermal, grinding and micro blasting.
     


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against this unit standard must be registered as an assessor with the relevant ETQA
  • Any institution offering learning that will enable the achievement of this unit standard must be accredited as a provider with the relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant ETQA according to the ETQA`s policies and guidelines for assessment and moderation.
  • Moderation must include both internal and external moderation of assessments at exit points of the qualification, unless ETQA policies specify otherwise. Moderation should also encompass achievement of the competence described both in individual unit standard as well as the integrated competence described in the qualification. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Learners should have a knowledge and understanding of:
  • Read data sheets.
  • Read the engineering drawing.
  • Demonstrate knowledge of Electric Static Discharge.
  • Able to identify components.
  • Polarity identification.
  • Environmentally friendly process like lead free.
  • Safety regulations in the workplace.
  • Demonstrate an understanding of electrostatic discharge. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems pertaining to possible defects on the PC board by making responsible decisions based on the IPC standards. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a work team to identify and analyse fault reports pertaining electronic systems for proper repair work. 

    UNIT STANDARD CCFO ORGANISING 
    Plan, organise and manage oneself and one's activities responsibly and effectively by identifying and acquiring appropriate electronics instruments needed for removal and repair work. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information relating to technologies used in order to make sound decisions on the repair work to be done. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematical and/or language skills in the form of oral and/or written presentation by documenting the procedures used during the repair work following the sequence as per the IPC and organisational requirements. 

    UNIT STANDARD CCFO SCIENCE 
    Using science and technology effectively and critically, showing responsibility towards the environment and others by recognising the importance of type metallurgy used in the repair process. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  80306   Further Education and Training Certificate: Electronics  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  As per Learning Programmes recorded against this Qual 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.