REPAIR AND MAINTAIN A COMPUTER
UNIT CODE: IT/0S/ICTA/CC/03/4/A
UNIT DESCRIPTION
This unit covers the competencies required for performing computer repair and maintenance
using diagnosing, repairing and maintenance tools. It involves performing troubleshooting,
dismantling of faulty components, repairing/replacing faulty components, up gradation and
testing of computer functionality.
ELEMENTS AND PERFORMANCE CRITERIA
                                  PERFORMANCE CRITERIA
 ELEMENT
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                                  (Bold and italicized terms are elaborated in the Range)
                                  1.1 Tools for disassembling are acquired
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                                  1.2 Faulty components are disassembled from the
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    1. Assemble and                   computer according to the provided instruction
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       Disassemble Computer           manuals.
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       Components                 1.3 Documentation of faulty components is done
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                                  1.1 Identification of computer parts is done
    2. Troubleshoot
                                  1.2 Gathering of appropriate computer maintenance
       Computer
                                      tools and maintenance techniques is done
       Components
                                  1.3 Theory of probable cause is established
                                  1.4 Testing of the theory to determine cause is done
                                  1.5 Problem cause is established
                                  1.6 Appropriate solution to the problem is performed
                                  3.1 Faulty parts to be repaired or replaced are identified
    3. Repair/replace and
                                  3.2 Acquisition of new parts is done as per the
       reassemble
                                      specifications of the components in the case of
       components
                                      replacement and repair is done on faulty
                                      components.
                                  3.3 Reassemble the repaired or replaced components.
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                             4.1 Testing tools are gathered according to the
   4. Test
                             manufacturers manual
      computer/component
                             4.2 Testing techniques are outlined
      functionality
                             4.3 Testing procedures are identified.
                             4.4 Testing of the repaired or replaced component is
                             done as per the instructions/standards
                             5.1 Identify hardware component to be upgraded.
   5. Upgrade computer
                             5.2 Install and configure the component
      hardware
                             5.3 Test the functionality of the installed component
RANGE
Variable                     Range
   1. Appropriate computer     •     Straight-head screwdriver, large and small.
      maintenance tools        •     Phillips-head screwdriver, large and small.
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      May include but not      •     Tweezers or part retriever.
      limited to               •     Needle-nosed pliers.
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                               •     Wire cutters.
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                                     Chip extractor.
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                               •     Hex wrench set.
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                                     Torx screwdriver
   2. Instruction manuals      •     Refers to an instructional book or booklet that is
      May include but not            supplied with almost all technologically advanced
      limited to                     consumer product to be used during inspection
   ©TVET CDACC 2019                                                                  46
REQUIRED KNOWLEDGE AND UNDERSTANDING
The individual needs to demonstrate knowledge and understanding of:
 1. Troubleshooting techniques
 2. Procedures and techniques for reassembling and disassembling.
 3. Component testing techniques
 4. Computer systems and their components
 5. The manufacturer's warranty requirements relating to activities for the computer
    and related components.
 6. Types of Computer/component testing
 7. Types of Maintenance
REQUIRED SKILLS
 The individual needs to demonstrate the following additional skills:
      •   Communications (verbal and               •   om
                                                       Decision making;
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          written);                                •   First aid;
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      •                                            •
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          Proficient in ICT;                           Report writing;
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      •   Time management;
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      •   Analytical
      •   Faults troubleshooting
      •   Problem solving;
      •   Planning;
EVIDENCE GUIDE
This provides advice on assessment and must be read in conjunction with the performance
criteria, required skills and understanding and range.
 1. Critical Aspects         1.1 Assessment requires evidence that the candidate:
    of Competency            1.2 Gathered appropriate computer repair and maintenance
                                 tools and performed troubleshooting
                             1.3 Identified different types of maintenance
                             1.4 Identified and disassembled Faulty components
                             1.5 Performed specific component tests
                             1.6 Repaired or replaced faulty components.
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                        1.7 Upgraded hardware components as needed
2. Resource          Resources the same as that of workplace are advised to be applied
   Implications      Including computer, printers, repair and maintains tools, device
                     drivers etc.
3. Methods of        Competency may be assessed through:
   Assessment        3.1 Oral questioning
                     3.2 Practical demonstration
                     3.3 Written test
4. Context of        4.1 Competency may be assessed individually in the actual
   Assessment            workplace or through simulated work environment
5. Guidance          5.1 Holistic assessment with other units relevant to the industry
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   information for       sector, workplace and job role is recommended.
   assessment
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   ©TVET CDACC 2019                                                                  48