Electronics

Republic of the Philippines Department of Education

PUBLIC TECHNICAL -VOCATIONAL HIGH SCHOOLS

TABLE OF CONTENTS

Course Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Course Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Using Basic Electronic Hand Tools . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Performing Mensuration and Calculation. . . . . . . . . . . . . . . . . . . . . . 18

Preparing and Interpreting Technical Drawing Used in Electronics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Terminating and Connecting Electrical Wiring and Electronic Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Applying Quality Standard on Electronic

Component Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Assembling AC – DC Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Maintaining and Repairing Electric Fan. . . . . . . . . . . . . . . . . . . . . . . ..41

Maintaining and Repairing Microwave Oven. . . . . . . . . . . . . . . . . . . . .47

Maintaining and Repairing Blender. . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Maintaining and Repairing Washing Machine . . . . . . . . . . . . . . . . . . . 59

Maintaining and Repairing Electric Flat Iron. . . . . . . . . . . . . . . . . . . . 65

Maintaining and Repairing Rice Cooker. . . . . . . . . . . . . . . . . . . . . . . . 71

Maintaining and Repairing Audio Products and System. . . . . . . . . . . . 77 Maintaining and Repairing Audio – Video

Products and System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Servicing and Repairing Low - End Cellular Phone. . . . . . . . . . . . . . . . 91 Servicing and Repairing High – End Cellular Phone. . . . . . . . . . . . . . . 98

Acknowledgment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

1

COURSE DESIGN

COURSE TITLE : CONSUMER ELECTRONIC

SERVICING

NOMINAL DURATION : 1,040 HRS

QUALIFICATION LEVEL : CES NC II

COURSE DESCRIPTION: This course covers knowledge, skills and

attitude in consumer electronics servicing.

It deals with good housekeeping and

safety, preparation of basic electronic

materials and tools, performing

mensuration and calculation, electronics

technical drawing preparation and

interpretation, electronics circuit

connection, quality standards application,

testing, assembling, maintaining and

repairing electronically controlled

domestic appliances.

ADMISSION TO THE PROGRAM

The students shall be admitted in Public Technical-Vocational High Schools

upon compliance with the following requirements/qualifications

Must have potential skill in any of the specialization of the

components of TVE as reflected in the High School Occupational Interest Inventory (HSOII) results.

Must possess a desirable and healthy attitude towards skill activity.

Must have passed interview and aptitude test.

Must submit the following documents upon enrolment.

- Form 138 - Parental consent for the students to undergo other related

activities outside the school. - Medical Certificate is issued by a government physician. - Certification of good moral character from the elementary

school principal.

2

COURSE STRUCTURE

SECOND YEAR

UNIT OF

COMPETENCY

MODULE

TITLE LEARNING OUTCOME

Suggested No. of

Hours

Use Basic

Electronic Hand Tools

Using Basic


LO 1. Identify functional

basic electronic hand tools.

LO 2. Use appropriate

electronic hand tools based on safety equivalent.

LO 3. Maintain electronic hand tools.

60

Perform

Mensuration and Calculation

Performing

Mensuration and Calculation

LO 1. Select measuring

instrument.

LO 2. Carry out measurements and

calculation.

LO 3. Maintain measuring

instruments.

40

Prepare and

Interpret Technical Drawing Used in

Electronics

Preparing and

Interpreting Technical Drawing Used

in Electronics

LO 1. Identify electronic

components. LO 2. Interpret electronic

diagrams.

LO 3. Prepare electronic diagrams

LO 4. Store Electronic

diagrams according to established

policies.

100

Terminate and

Connect Electrical Wiring

and Electronic Circuit

Terminating

and Connecting

Electrical Wiring and Electronic

Circuit

LO 1. Make a simple

electrical circuit. LO 2. Prepare and connect

a simple circuit in Electronics.

LO 3. Test a simple

electrical and

210

3

THIRD YEAR

UNIT OF

COMPETENCY

MODULE

TITLE

MODULE CONTENT Suggeste

d No. of Hours

Assemble and Disassemble Consumer

Electronic Product and System

Assembling AC – DC Power Supply

LO 1. Identify the parts and electronic

components of an Alternating Current – Direct Current (AC-

DC) power supply.

LO 2. Assemble AC-DC

power supply on the Printed Circuit Board.

50

Maintain and Repair

Electronically Controlled Appliances

Maintaining and Repairing

Electric Fan

LO 1. Identify the parts and functions of an

electric fan. LO 2. Diagnose and

troubleshoot an

electric fan. LO3. Maintain and repair

an electric fan.

60

Maintain and Repair

Electronically Controlled

Appliances


Microwave Oven

LO1. Identify the parts and function of a

microwave oven. LO 2. Diagnose a microwave

oven and analyze the defects found.

LO 3: Maintain and repair a

microwave oven.

30

electronic circuit

Apply Quality Standards on Electronic

Component Parts

Applying Quality Standards on

Electronic Component

Parts

LO 1. Assess quality of received electronic

components.

LO 2. Asses own work.

LO3: Engage in quality

improvements.

90

4

Maintain and

Repair Electronically Controlled

Appliances

Maintaining

and Repairing Blender

LO 1. Identify the parts and

functions of a blender.

LO 2. Diagnose/

troubleshoot a blender defects.

LO 3: Maintain and repair

blender

30

Maintain and

Repair Electronically

Controlled Appliances

Maintaining

and Repairing Washing

Machine

LO 1. Identify the parts

and functions of washing machine.

LO 2. Diagnose/ troubleshoot washing machine

defects. LO 3: Maintain and repair

washing machine.

70

Maintain and Repair

Electronically Controlled

Appliances


Electric Flat Iron

LO 1. Identify the parts and

functions of electric flat iron.

LO 2. Diagnose / troubleshoot electric

flat iron defects. LO 3. Maintain and repair

electric flat iron

30

Maintain and

Repair Electronically Controlled

Appliances

Maintaining

and Repairing Rice Cooker

LO 1. Identify the functions

of the parts of a rice cooker. LO2. Diagnose a rice cooker

and analyze the defects found.

LO3: Maintain and repair a rice cooker.

30

5

FOURTH YEAR

UNIT OF

COMPETENCY

MODULE

TITLE

MODULE CONTENT Suggested

No. of Hours

Maintain and Repair Audio – Video Products

and System

Maintaining and Repairing Audio Products

and system

LO 1. Prepare audio tools and workplace for maintenance/repair

of audio products. LO 2. Diagnose faults of

audio products and systems

LO 3 Maintain and repair

audio products and system

75

Maintain and Repair Audio – Video Products

and System

Maintaining and Repairing Audio – Video

Products and system

LO 1. Prepare an audio video unit, tools and workplace for

maintenance and repair of audio-video

product and system. LO2. Diagnose faults of

audio - video

products and system. LO3 Maintain and repair

audio - video products and system.

100

Service and

Repair of Cellular Phone

Servicing and

Repairing Low – End Cellular

Phone

LO 1.Identify the parts of a

low-end cellular phone unit and interpret the schematic

diagram LO2. Diagnose a low-end

cellular phone unit

and analyze the defects found.

LO3 Maintain and repair a low-end cellular phone unit.

90

Service and

Repair of Cellular Phone

Servicing and

repairing High – End Cellular phone

LO 1.Identify the parts of a

high - end cellular phone unit and interpret the schematic diagram

LO2. Diagnose and analyze the defects found in a

135

6

ASSESSMENT METHOD:

Upon completion of each module, the students will be assessed through the following method:

Written examination

Demonstration

Interview

Direct observation

Oral examination

COURSE DELIVERY: (METHODOLOGY)

The program will build on the present knowledge, skills and attitude of the students; thus the conduct will be highly participative. The strategies will focus

on interactive, self-directed and reflective approaches. Lecture-discussion, demonstration method and hands on workshop will be included in the delivery of the program.

RESOURCES:

Learning Elements/Handouts

Electrical Safety

Using Basic Electronic Hand Tools

Diagrams

Measuring resistance using VOM

Connecting and Terminating Electronic Circuits

Applying Quality Standards

Electronic Component Testing

Assembling AC – DC Power supply

Maintaining and Repairing Electric Fan

Maintaining and Repairing Microwave Oven

Maintaining and Repairing Blender

high – end cellular

phone unit. LO3 Maintain and repair a

high -end cellular

phone unit. LO 4. Test a repaired high –end cellular phone unit.

LO 5. Install additional features

7

Maintaining and Repairing Washing Machine

Maintaining and Repairing Electric Flat Iron

Maintaining and Repairing Rice Cooker

Maintaining and Repairing Audio Products and System

Maintaining and Repairing Audio – Video Products and System

Servicing and Repairing a Low – End Cellular Phone

Servicing and Repairing a High – End Cellular Phone

Selections/Collections of Video Programs

Safety Practices in Workshop

Electrical Safety


Electronic Components

Transparency

Electrical Safety

Diagrams

Meter scale reading

Measuring Voltage using VOM

Parts of multi-tester

Resistor Color Coding Chart

Electronic Components Specification

Equipment

Oscilloscope

Audio Generator

Distortion Analyzer

Frequency Counter

Sweep Generator

Signal Generator

Pattern Generator

High Voltage Meter

Audio Frequency Counter

Analog/Digital Multitester

Power Supply

AM-FM Radio Receiver

AM Radio Receiver

Professional Audio/Public Address (PA) System

MP3/MP4

Television Set

PC Monitor

Cellular Phone Unit

Personal Protective Equipment

- Safety goggles/Masks

8

- Rubber gloves

Domestic Appliances

Electric Fan

Microwave oven

Blender

Washing Machine

Electric Flat Iron

Rice Cooker Tools

Driving Tools o Screw Drivers (flat, Philips)

o Allen Wrench (hex) o Precision Screw Drivers

Soldering/Desoldering Tools

o Soldering Iron

o Soldering Stand o Desoldering Tool o Hot Air Soldering Tool

Splicing Tools o Long Nose Pliers

o Diagonal Cutting Pliers o Wire Stripper

Boring Tools

o Mini-Drill o Portable Electric Drill

Cutting Tools o Utility Knife

o Hacksaw

Auxiliary Tools

o Ball-peen Hammer o Magnifying Glass

o Paint Brush

Cleaning Brush

Cleaning Agent

Materials

Printed Circuit Board

Ferric Chloride Solution

Bread Board

Soldering Lead

Sets of Connector

Alligator Clips

9

Electronic Components

Speaker

Wires

o Solid o Stranded

Masking Tape

QUALIFICATION OF TEACHERS:

The teacher who will handle this course must possess the following

qualifications:

A graduate of BS in Electrical Engineering or BS in Industrial Education major in Electrical Technology/Electronics Technology with 21 units in

Education course

A professional teacher

He/she must be a holder of at least National Certificate Level II, BWI and have undergone AQ1 and TQ1 Training.

BOOKS:

- Buban, Peter andSchmitt, Marshall. Technical Electricity and Electronics, New York: Mc Graw-Hill: 1972.

- Grob, Bernard. Basic Electronics, 4th Edition; New York: Mc Graw-Hill Company: 1977

- Grob, Bernard. Electronics Circuits and Application; McGraw-Hill Company, USA: 1982

- Markus, John. Electronics Dictionary, 4th Edition; New York: McGraw-Hill Company: 1945

- Tan, Michael Q., Gantalao, Fred T., Lasala, Rommel M. Simple Electronics; Andes Mountain Printers: 2004

- Enriquez, Marcelo T. Electronics Technology IV; Souvenir Publications, Inc.: 2003

- Pagarigan, Marconi and Bandi, Sharif. Practical Electronics Solid State Servicing, Quapo, Manila: Electrolab Corporation, 1986

Staff of Electronic Enthusiasts, Project & Circuits Volume 1, Manila: 1982

- Goldberg, Joel. Troubleshooting Electronic Devices; Delmar Publishers, Inc:1994.

- Mukay, Masaaki, Kobayashi, Ryozzo. TV Troubleshooting Manual. Pictorial Printers, Ltd: 1988.

- Perozzo, James. Practical Electronics Troubleshooting: Delmar Publishers, Inc: 1992.

10

- Ronan, David T. Practical VCR Repair; Delmar Publishers, Inc: 1995.

- www.google.com

- www.yahoo.com

- http;//e-service.panasonic.com - http://uselessinfo.pwp.blueyonder.co.uk/hints_nokia.htm

- http://uselessinfo.pwp.blueyonder.co.uk/nokia-dismantle.htm

- http://repair4mobilephone.org/cell_phone.html

- www.mobile-hardware.net

- www.twisterflasher.com

- http://uselessinfo.pwp.blueyonder.co.uk/hints_moto.htm

- http://uselessinfo.pwp.blueyonder.co.uk/SIEMENSdismantle.htm

- http://uselessinfo.pwp.blueyonder.co.uk/index.htm

http://www.yahoo.com/

http://uselessinfo.pwp.blueyonder.co.uk/hints_nokia.htm

http://uselessinfo.pwp.blueyonder.co.uk/nokia-dismantle.htm

http://repair4mobilephone.org/cell_phone.html

http://www.mobile-hardware.net/

http://www.twisterflasher.com/

http://uselessinfo.pwp.blueyonder.co.uk/hints_moto.htm

http://uselessinfo.pwp.blueyonder.co.uk/SIEMENSdismantle.htm

11

MODULES OF INSTRUCTION

SECOND YEAR

12

UNIT OF COMPETENCY : USE BASIC ELECTRONIC HAND TOOLS

MODULE TITLE : Using Basic Electronic Hand Tools

MODULE DESCRIPTION : This module covers the knowledge, skills and attitudes on the choice of basic electronic hand tools their

uses, proper handling and maintenance.

NOMINAL/ SUGGESTED DURATION : 60 hrs

CERTIFICATE LEVEL : NC II

PREREQUISITE : NONE

SUMMARY OF LEARNING OUTCOMES:

Upon completion of this module you should be able to:

LO 1. identify functional basic electronic hand tools;

LO 2. use appropriate electronic hand tools based on safety

equivalent; and

LO 3. maintain basic electronic hand tools.

13

LO 1 Identify functional basic electronic hand tools

ASSESSMENT CRITERIA:

1. Electronic hand tools are identified and classified according to

their applications.

2. Electronic hand tools are specified according to job requirements.

3. Functions of electronic hand tools are identified and explained.

CONTENTS:

Classification of Electronic Hand Tool

Functions of Various Electronic Hand Tools

Identification of The Kinds of Electronic Hand Tools

Specifying Electronic Hand Tools

CONDITION:

Below are the classifications of electronic hand tools:

Driving Tools

o Screw Drivers ( flat, Philips) o Allen Wrench (hex)

o Precision screw drivers

Soldering/Desoldering Tools

o Soldering iron o Soldering stand

o Desoldering tool

Splicing Tools

o Long Nose Pliers o Diagonal Cutting Pliers o Wire Stripper

Boring Tools o Mini – Drill

o Portable Electric Drill

Metal Files

o Flat File o Half – Round file

o Round File

Cutting Tools

o Utility Knife o Hacksaw

14

Auxiliary Tools

o Ball – peen Hammer o Magnifying Glass o Paint Brush

METHODOLOGIES:

Lecture

Group Discussion

Demonstration

ASSESSMENT METHODS:

Written test (objective type)

Practical demonstration with oral questioning

Performance test

15

LO 2 Use appropriate electronic hand tools based on safety equivalent


1. Electronic tools are chosen in accordance with the job

requirements. 2. Electronic tools are used in accordance with the

manufacturer’s manual.

3. Safety procedures in using electronic hand tools are practiced.

CONTENTS:

Use of Appropriate Electronic Hand Tools o Flat File

o Soldering Iron

Safety Requirements with whe Use wf Personal Protective

Equipment (PPE).

CONDITIONS:

The following resources are needed:

Various electronic hand tools

o Screw drivers (flat and Philips) o Pliers

- long nose pliers - diagonal pliers

o Puncher o Allen wrench (assorted) o Files (assorted)

o Hand Hacksaw with blade o Soldering iron

o Desoldering tools o Ball hammer o Wrenches

o Magnifying glass o Cleaning brush o Wire stripper

o PPE

Learning materials

16

o Electronic Hand tools manual o OHS manual

o Requisition slips

PPE

Workplace according to the given task/s

METHODOLOGIES:

Demonstration

Self-paced/ Discovery

Concept mapping

ASSESSMENT METHODS:

Performance Test

Written test


17

LO 3 Maintain electronic hand tools


1. Routine maintenance of electronic hand tools is practiced. 2. Electronic tools are kept safely in a designated location.

CONTENTS:

Procedure in Maintaining Electronic Hand Tools

Procedure in Storing Electronic Hand Tools

CONDITIONS: The following resources are needed:

Storage area

Hand tools

o Screw drivers (flat and Philips) o Pliers

- long nose pliers - diagonal pliers

o Puncher

o Allen wrench (assorted) o Files (assorted) o Hand Hacksaw with blade

o Soldering iron o Desoldering tools

o Ball hammer o Nut driver (assorted) o Magnifying glass

o Cleaning brush o Wire stripper o PPE

Lubricants

Clean rags

Learning materials

o Hand tools manual o OHS manual

o Requisition slips METHODOLOGIES:

Team Demonstration


ASSESSMENT METHODS:

Practical demonstration with oral questioning.

Performance Rubrics

18

UNIT OF COMPETENCY : PERFORM MENSURATION AND CALCULATION

MODULE TITLE : PERFORMING MENSURATION AND CALCULATION

MODULE DESCRIPTION : This module covers the knowledge,

skills and attitudes needed to identify, care, handle and use

measuring instruments.



PREREQUISITE : NONE


Upon completion of this module you should be able to:

LO 1. select measuring instruments;

LO 2. carry out measurements and calculation; and

LO 3. maintain measuring instruments.

19

LO 1 Select measuring instruments


1. Use of measuring tools is explained.

2. The scale of measuring instrument is interpreted. 3. Measuring instruments are specified per job requirements.

CONTENTS:

1. Measuring Tools and Their Uses 2. Reading the Scale of Measuring Instruments 3. Specification of Measuring Tools and Instruments

CONDITIONS:


Electronic components (resistor, capacitor etc.)

Instruments

- Steel rule - Volt-Ohm-Milliameter

Measuring Instrument Manual

METHODOLOGIES:

Lecture

Discussion

Demonstration

ASSESSMENT METHODS:


Actual Performance Exam

20

LO 2 Carry out measurements and calculation


1. Calculations needed to complete tasks are performed.

2. Calculations involving conversion of units are interpreted. 3. Measurements are read based on the specific range

setting of the task.

4. Accurate measurements are obtained for a job.

CONTENTS:

Common Mathematical Prefixes

Calibration of Measuring Instruments

Conversion of Units (English to Metric & Vice Versa) for Measurement and Calculation

CONDITIONS:


- Calibration / Reading of measuring instruments - Instruments

Steel rule Volt-Ohm-Milliammeter

METHODOLOGIES:

Lecture

Discussion

Demonstration

ASSESSMENT METHODS:

Written test


21

LO 3 Maintain measuring instruments

ASSESMENT CRITERIA:

1. Measuring instruments are handled properly. 2. Measuring instruments are cleaned before and after they are

used.

3. Proper storage of instruments is undertaken according to the manufacturer’s specifications and standard operating procedures.

CONTENTS:

Proper Handling of Measuring Instrument

Proper Cleaning and Storing of Measuring Instruments


Measuring Instruments a. Steel rule

b. Volt-Ohm Milliammeter

Learning materials a. Measuring instrument manual

b. Requisition slip

Cleaning materials (rags, etc.)

METHODOLOGIES:

Lecture

Demonstration

Role Playing

ASSESMENT METHODS



22

UNIT OF COMPETENCY : PREPARE AND INTERPRET TECHNICAL DRAWING USED IN

ELECTRONICS

MODULE TITLE : PREPARING AND INTERPRETING

TECHNICAL DRAWING USED IN

ELECTRONICS

MODULE DESCRIPTION : This module covers the knowledge, skills and attitudes needed to

prepare interpret diagrams, electronics abbreviation and drawings, symbols and dimensions.

NOMINAL/SUGGESTED DURATION : 100 hrs.


PREREQUISITE : NONE


Upon completion of this module, you should be able to:

LO 1. identify electronic components;

LO 2. interpret electronic diagrams;

LO 3. prepare electronic diagrams; and

LO 4. store electronic diagrams based on established policies.

23

LO 1 Identify electronic components


1. Electronic components are classified based on their specification. 2. Electronic components are identified based on their functions.

CONTENTS:

Types of Electronic Components

Functions of Electronic Components


Kinds of Electronic Components

o Resistor o Capacitor

o Diode o Transistor

o Thyristor o IC

METHODOLOGIES:

Discussion

Schematic Diagram Reading

Actual Exposure in Electronics Circuitry.

ASSESSMENT METHODS:

Written test

Performance Test

24

LO 2 Interpret electronic diagrams


1. Electronic diagram are identified according to job requirements. 2. The equivalent components are distinguished based on the

symbols given. 3. The connection of the electronic symbols in a circuit is traced.

CONTENTS:

Kinds of Electronic Diagrams o Pictorial Diagram

o Block Diagram o Schematic Diagram o Wiring Diagram

Electronics Symbols

CONDITIONS:


Actual electronic components

Diagrams o Schematic diagram

o Pictorial o Block diagram o Wiring diagram

METHODOLOGIES:

Lecture/Discussion

Actual Diagram Reading

Actual Exposure on Electronics Circuitry.

ASSESSMENT METHODS:


Performance test

25

LO 3 Prepare electronic diagrams


1. The symbols appropriate to the electronic components are used

in the electronic diagrams.

2. Electronic diagrams are drawn based on the requirements of the job.

3. All the specifications required by the job are detailed in the

diagrams drawn.

CONTENTS:

Guidelines in Drawing Diagrams

Standard Diagrams in Electronics

CONDITIONS:


Instruments

o Drawing board o Rulers

o HB Pencil

Materials

o Drawing paper o Actual electronics component

Learning materials

o Diagrams Schematic diagram

Pictorials diagram Block diagram

Wiring diagram

METHODOLOGIES:

Lecture

Demonstration

ASSESSMENT METHODS:



26

LO 4 Store electronic diagrams based on established policies


1. Electronic diagrams are recorded and an inventory is prepared. 2. Proper storage of diagram is undertaken.

CONTENTS:

Recording of electronic diagrams

Proper storage of electronic diagrams

CONDITIONS:


Storage area for technical drawings

Catalog

Manuals on care and maintenance procedure of electronic

diagram. METHODOLOGIES:

Lecture

Group Discussion

ASSESSMENT METHODS:


27

UNIT OF COMPETENCY : TERMINATE AND CONNECT ELECTRICAL WIRING AND

ELECTRONIC CIRCUIT

MODULE TITLE : TERMINATING AND CONNECTING

OF ELECTRICAL WIRING AND

ELECTRONIC CIRCUIT

MODULE DESCRIPTION : This unit covers the knowledge, skills and attitudes needed to

terminate and connect an electrical wiring and electronic circuit.

NOMINAL/SUGGESTED DURATION : 210 hrs


PREREQUISITE : NONE



LO 1. make a simple electrical circuit;

LO 2. prepare and connect a simple circuit in electronics; and

LO 3. test a simple electrical and electronics circuit.

28

LO 1 Make a simple electrical circuit


1. A simple circuit is made based on the required specifications. 2. Appropriate electrical symbols are used. 3. The specifications of electronic components are indicated.

CONTENTS:

Components of Simple Circuit

Electronic Symbols

Parts of a Simple Circuit o source

o load o path

o switch

Procedure in Making Simple Circuit.

CONDITIONS:


Tools and materials o Pencil

o Ruler o Paper

Sample of actual circuit

Schematic diagram of a simple circuit

Actual components of a simple circuit

Handouts in circuit designing

METHODOLOGIES:

Discussion

Demonstration

ASSESSMENT METHODS:


Performance test on designing a simple circuit

29

LO 2 Prepare and connect a simple circuit in electronics


1. Personal Protective Equipment & Occupational Health and Safety Policies are observed in accordance with industry standards.

2. Correct method in connection is used according to specification, requirements and safety policies.

3. Correct sequence of operation is followed according to the job

specifications. 4. Electronic components are checked according to the

specifications and task /s. CONTENTS:


Harnessing Wires

Splices and Joints

Circuit Analysis

Circuit and Connection

CONDITIONS:


Manuals o Personal Protective Equipment

o Occupational Health & Safety o Electronic Hand tools

o Harnessing Wires o Splices and Joints

Actual sample of splices and joints

Materials and components

o Wires o Cables o Electrical tape

o Switch o Fuse

o Bulb

Tool set includes the following but not limited to:

o pliers o cutter o screw driver (flat, Philip)

30

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHOD:

Written test


Role Playing

31

LO 3 Test a simple electrical and electronics circuit


1. Wiring/Circuit is checked in accordance with the circuit design. 2. Circuits are tested using the appropriate tools.

CONTENTS:

Tools in Testing Circuits in Electronics

Procedures in Testing a Simple Circuit

CONDITIONS:


Simple circuit

Power supply(0-12 VDC)

Tools set includes the following but not limited to;

o pliers o cutter o screw driver (flat, Philip)

Analog/digital multitester

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHODS:


32

UNIT OF COMPETENCY : APPLY QUALITY STANDARDS ON ELECTRONIC COMPONENT PARTS

MODULE TITLE : APPLYING QUALITY STANDARDS ON ELECTRONIC COMPONENT PARTS

MODULE DESCRIPTOR : This module covers the knowledge,

skills and attitudes needed to apply quality standards in the electronic

components. The unit also includes the application of relevant safety procedures and regulations,

organization procedures and customer requirements.



PREREQUISITE : NONE

SUMMARY OF LEARNING OUTCOMES: Upon completion of this module, you should be able to:

LO 1. assess quality of received electronic components; LO 2. assess own work; and

LO 3. engage in quality improvements.

33

LO 1 Assess quality of received electronic components


1. Quality of the electronic components is checked according to the specifications.

2. Quality standard electronic components are separated from sub-standard electronic components.

3. Electronic components, which do not conform to quality

standard are identified and marked for disposal. CONTENTS:

Quality inspection procedure

Identification and isolation of faulty electronic components.

Samples of good and faulty electronic components.

CONDITIONS:


Assorted Electronic Components (20 pcs. for each kind)

Multi-Tester

METHODOLOGIES:

Discussion

Demonstration

ASSESSMENT METHODS:


Demonstration

34

LO 2 Assess own work


1. The quality standard set by the organization is followed. 2. Completed work is checked against the organizational work

procedures on tools. 3. Information on the quality of the performance is recorded in

accordance with the organizational quality procedures.

4. Deviations from specified quality standard and their causes are reported in accordance with the organizational work procedures.

CONTENTS:

The PDCA Cycle

Assessing One’s Work Using the PDCA Cycle

CONDITIONS:


Case study

Report Form in Quality Improvements

METHODOLOGIES:

Lecture

Discussion

Case study

ASSESSMENT METHODS:

Written test

Case study

35

LO 3 Engage in quality improvements


1. Existing organizational work procedures are assessed. 2. Process improvement procedures are applied and implemented. 3. Information on quality of organizational performance is recorded.

4. Deviations from specified quality standards and their causes are reported. 5. Improvement in work procedures is recommended.

CONTENTS:

Assessing the Organizational Work Procedure

Applying the PDCA Cycle in Organizational Work

Improvement Procedure

Preparing a Report and Recommendation

CONDITIONS:


Case study

Report Form in Quality Improvement

METHODOLOGIES:

Lecture

Group Discussion

Case study

ASSESSMENT METHODS:

Role Playing

Case study

36


THIRD YEAR

37

UNIT OF COMPETENCY : ASSEMBLE AND DISSAMBLE CONSUMER ELECTRONIC

PRODUCTS AND SYSTEM

MODULE TITLE : ASSEMBLING AC-DC POWER SUPPLY

MODULE DESCRIPTION : This unit covers the knowledge,

skills and attitudes required to assemble consumer electronic

products and systems.



PREREQUISITE : NONE



LO 1. identify the parts and electronic components of an AC-DC power supply; and

LO 2. assemble AC-DC power supply on the printed circuit board.

38

LO 1 Identify the parts and electronic components of an AC-DC Power supply


1. The types of AC – DC power supply are enumerated.

2. The parts of an AC-DC power supply are identified. 3. The electronic components needed to assemble an AC-DC power

supply are listed and acquired.

CONTENTS:

1. Types of AC-DC Power Supply 2. Parts of AC-DC Power Supply

3. Electronic Components of AC-DC Power Supply

CONDITIONS:


Textbooks Manuals AC-DC power supply

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHOD:


39

LO 2 Assemble AC-DC power supply on the printed circuit board


1. Printed circuit board design and etching of AC-DC power

supply are prepared.

2. Electronic components are mounted and soldered at the appropriate location on the printed circuit board.

3. All auxiliary components including the transformer are

interconnected on the printed circuit board. 4. Assembled AC-DC power supply is tested and defects are

corrected. CONTENTS:

Designing and etching of printed circuit board of AC-DC

power supply

Mounting and Soldering Electronic Components on the

Printed Circuit Board.

Interconnecting All Auxiliary Components including the

Transformers from the Chassis.

Testing AC-DC Power Supply.

CONDITIONS:


- Textbooks on AC/DC power supply assembly. - Manuals on occupation health and safety policies - Electronic tool and equipment

Soldering Iron Desoldering tool

Screwdriver (Flat / Philip) Wire stripper / Utility knife Pliers

Diagonal cutting pliers

long nose pliers

High grade magnifying glass with lamp Cleaning brush

Soldering lead Cleaning agent

Wires

Stranded

Solid

40

Pre-design Printed Circuit Boards (PCB) Mini drill with drill bit 91/16,1/8) with adaptor

(+12VDC supply) Sand paper

Pencil Ruler AC-DC power supply kit (1.5 – 12 volts variable power

supply) Analog multi tester (voltmeter / VOM)

METHODOLOGIES:

Group Discussion

Demonstration

Actual testing of AC/DC power supply

ASSESSMENT METHOD:

Demonstration

41

UNIT OF COMPETENCY : MAINTAIN AND REPAIR ELECTRONICALLY CONTROLLED

DOMESTIC APPLIANCES

MODULE TITLE : MAINTAINING AND REPAIRING

ELECTRIC FAN


skills and attitudes on maintaining and repairing electric fan.



PRE-REQUISITE : NONE


Upon completion of this module, the you should be able to:

LO 1. identify the parts and functions of an electric fan;

LO 2. diagnose and troubleshoot an electric fan; and

LO 3. maintain and repair an electric fan.

42

LO 1 Identify the parts and function of an electric fan


1. The operation of an electric fan is explained. 2. Parts of an electric fan are identified. 3. The functions of its parts are explained.

CONTENTS:

The Operation of an Electric Fan

The Parts of an Electric Fan are Identified

Function of Each Part

CONDITIONS:


Actual part s of Electric Fan

o External fan guard blade

stand switch/speed control

back & front cover timer oscillating control

o Internal Non –polarized capacitor motor

resistor gear

Integrated Circuit

Service manual

METHODOLOGIES:

Lecture

Discussion

Demonstration

ASSESSMENT METHOD:


43

LO 2 Diagnose and troubleshoot an electric fan


1. Pre-testing procedure is followed in accordance with the

manufacturer’s manual.

2. System defect/fault symptoms are identified using appropriate

tools and equipment.

3. Identified defects and faults are explained to the responsible

person.

4. Results of diagnosis and testing are documented.

5. Troubleshooting is performed in accordance with the service

manual.

CONTENTS:

Procedure and Techniques in Pre-Testing of The Electric fan

Troubleshooting Procedure

Tools for Testing

Possible Faults and Corresponding Remedies - Mechanical faults

- Electrical faults -switch

-motor - wiring - plugs and cords

- fuse

CONDITIONS:


Service Manual of electric fan

Electric Fan

o Functional o Defective

Screw drivers (Philip, flat)

Pliers

o Diagonal pliers o long nose pliers

o long chain nose pliers

Soldering Iron

Wire stripper

Wrench (assorted)

44

Desoldering tools

Cleaning brush

Test jig

High grade magnifying glass

METHODOLOGIES:

Discussion

Demonstration


ASSESSMENT METHODS:


Performance Test

45

LO 3 Maintain and repair an electric fan


1. Personal Protective Equipment are used in accordance with Occupational Health and Safety practices.

2. Electro-Static Discharge (ESD) protection procedure is followed.

3. Defective parts/components are replaced with identical equivalent ratings and repaired at the specified location.

4. Control settings/adjustments are performed in conformity with service-manual specifications.

5. The unit is cleaned after the maintenance and repair activity.

CONTENTS:

Electro-Static Discharge (ESD) Protection Procedure

Component Checking and Replacement

Specification of Replacement Parts

Repair Procedure


Testing Instruments - Multi-testers (Analog/Digital)

Electronic hand tools

- Screw drivers (Philip, flat) - Pliers

diagonal pliers long nose pliers long chain nose pliers

- Soldering Iron - Wire stripper

- Desoldering tools - Cleaning brush

- Test jig

- High grade magnifying glass


o Working Clothes/Apron o Hand gloves o Face/Dust Mask

o Goggles

46

Workbench

Materials o Wire, various sizes

o Soldering lead o Rags o Cleaning brush

o Soldering paste o Lubricants

o Job report sheets o Cleaning agent

Spare Electronic components of electric fan o Capacitor

o Fusible resistor

Spare motor

Defective Electric fan

METHODOLOGIES:

Lecture / Discussion

Demonstration

Written test

ASSESSMENT METHODS:

Demonstration

Performance test on troubleshooting and repairing of electric

fan

47


DOMESTIC APPLIANCES

MODULE TITLE : MAINTANING AND REPAIRING MICROWAVE OVEN

MODULE DESCRIPTION : This module covers the knowledge, skills and attitudes needed for maintaining and repairing a

microwave oven



PREREQUISITE : NONE



LO 1. identify the parts and functions of a microwave oven;

LO 2. diagnose a microwave oven and analyze defects

found; and

LO 3. maintain and repair a microwave oven.

48

LO 1 Identify the parts and functions of a microwave oven


1. The operation of a microwave oven is explained. 2. The parts of a microwave oven are identified. 3. The functions of its part are discussed.

CONTENT:

Operation of a Microwave Oven

Parts of a Microwave Oven

Function of its Parts


Actual unit of microwave oven

o Functional o Defective o Internal parts

Resistor Diode Capacitor

Integrated Circuit Transistor

Transformer o External parts

Casing

Plug Power Cord Switch

Fuse

Manual

o Service manual o Parts of a microwave oven

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHODS:


Performance Test

49

LO 2 Diagnose a microwave oven and analyze the defects found


1. Pre-testing procedure is performed in accordance with manufacturer’s instructions.

2. System defects/fault symptoms are identified using appropriate tools and equipment.

3. Identified defects and faults are explained to the responsible person.

4. Results of diagnosis and testing are documented and followed

according to manufacture’s specification.

5. Troubleshooting is performed based on the service manual.

6. Safety practices are observed during troubleshooting of microwave oven.

CONTENT:

Possible Faults and Corresponding Remedies

Tools used in Pre-Testing a Microwave Oven

Pre-Testing Procedure of a Microwave Oven

Troubleshooting Procedure of a Microwave Oven

Safety Practices in Troubleshooting Microwave Oven

CONDITIONS


Service Manual

Microwave oven o Functional microwave oven

o Defective microwave oven


o Screw drivers (Philip, flat) o Pliers - Diagonal pliers

- long nose pliers - long chain nose pliers o Soldering Iron

o Wire stripper o Wrench (assorted)

o Desoldering tools o Cleaning brush o Test jig

o High grade magnifying glass

50

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHODS:

Written test

Demonstration

51

LO 3 Maintain and repair a microwave oven


1. Personal protective equipment is used in accordance with Occupational Health and Safety practices.

2. Defective parts/components are replaced with identical equivalent ratings and repaired at the specified location.


4. Repair activity is performed within the required timeframe.

CONTENTS:

Component Replacement Guide


Procedures in Maintaining and Repairing of a Microwave Oven

CONDITIONS:


Testing Instruments

o Multi-testers (Analog/Digital)


o Screw drivers (assorted) o Pliers (assorted)

o Soldering Iron o Wire stripper


o Working Clothes/Apron o Hand gloves

o Face/Dust Mask

Workbench



Reference Manual

o Semiconductor Electronic Component Guide (ECG)

52

METHODOLOGIES:

Demonstration

Group Discussion

ASSESSMENT METHOD:

Demonstration

53


DOMESTIC APPLIANCES

MODULE TITLE : MAINTAINING AND REPARING A

BLENDER


skills and attitudes in maintaining and repairing a blender.






LO 1. identify the parts and functions of a blender;

LO 2. diagnose/troubleshoot blender defects; and

LO 3. maintain and repair blender.

54

LO 1 Identify the parts and functions of a blender


1. The parts and their functions are identified based on

manufacturer’s service manual.

2. Parts are handled in accordance with manufacturer’s service manual.

CONTENT:

Parts and Functions of Blender

CONDITIONS:

Students/trainees must be provided with the following:

Blender o Internal parts

Motor Thermal Fuse

o External parts

o Switch o Plug & cord o Casing

o Blade

Manual

o Service manual

METHODOLOGIES:

Discussion

Demonstration


ASSESSMENT METHODS:



55

LO 2 Diagnose/troubleshoot a blender defects


1. Pre-testing procedure is observed in accordance with the

manufacturer’s instructions.

2. System defects/fault symptoms are identified using appropriate

tools and equipment and in accordance with safety procedures.

3. Identified defects and faults are explained to the responsible

person (teacher as in the case of students) in accordance with the enterprise or company policy and procedures.

4. Results of diagnosis and testing are documented accurately and completely within the specified time frame.

5. Customers (Assessors/Teachers) are advised/informed regarding the status and serviceability of the unit as per

procedure.

CONTENTS:

Pre-testing Procedure of Blender

Troubleshooting Guide (Faults and Remedies) of a Blender

CONDITIONS:


Service Manual

Blender


o Screw drivers (Philip, flat) o Pliers

- diagonal pliers - long nose pliers

- long chain nose pliers o Soldering Iron o Wire stripper

o Wrench (assorted) o Desoldering tools o Cleaning brush

o Test jig o High grade magnifying glass

METHODOLOGIES:

Discussion

Demonstration

56


ASSESSMENT METHODS:


Demonstration

57

LO 3 Maintain and repair blender


1. Personal protective equipment is used in accordance with the

Occupational Health and Safety practices.

2. Defective parts/components are replaced with identical

equivalent ratings and repaired in accordance with the current industry standards.

3. Control settings/adjustments are performed in conformity with the service-manual specifications.

4. Repair activity is performed within the required time frame.

5. Cleaning of unit is performed in accordance with the standard procedure.

CONTENTS:

Occupational Health and Safety Practices


Procedure in Maintaining and Repairing a Blender

CONDITIONS:


Testing Instruments



o Screw drivers (assorted) o Pliers (assorted) o Soldering Iron

o Wire stripper



o Face/Dust Mask

Workbench

Materials

o Wire, various sizes o Soldering lead o Rags

o Cleaning brush

58

METHODOLOGIES:

Demonstration

Group Discussion


ASSESSMENT METHODS:



59


DOMESTIC APPLIANCES


WASHING MACHINE


skills and attitudes on maintaining and repairing washing machine.



PREREQUISITE : NONE

SUMMARY OF LEARNING OUTCOMES :


LO 1. identify the parts and functions of a washing machine;

LO 2. diagnose/troubleshoot washing machine defects; and

LO 3. maintain and repair washing machine.

60

LO 1 Identify the parts and functions of washing machine


1. The parts and their functions are identified based on


2. Parts are handled in accordance with the manufacturer’s service manual.

CONTENTS:

Parts and Functions of Washing Machine

Block Diagram of Electronically Controlled Washing Machine

CONDITIONS:


Washing Machine

o Internal parts Motor

o External parts

Timer

Speed Control Plug & Cord Casing

Manual o Service manual

METHODOLOGIES:

Discussion

Demonstration


ASSESSMENT METHODS:



61

LO 2 Diagnose/troubleshoot washing machine defects




2. System defect and fault symptoms are identified using

appropriate tools and equipment and in accordance with the safety procedure.

3. Identified defects and faults are explained to the responsible person (the teacher) in accordance with the enterprise or

company policy and procedure.

4. Results of diagnosis and testing are documented accurately and

completely within the specified timeframe.

5. Customers (Assessors/Teachers) are advised/informed

regarding the status and serviceability of the unit as per procedure.

CONTENTS:

Procedure and Techniques in Performing Pre-testing of the Washing Machine

Troubleshooting Guide (Faults & Remedies) for Washing Machine

Procedure in Assembling and Disassembling Electric Fan

Mechanical Faults in Washing Machine

o gear o bushing

o spacers o washer

o lubrication

Electrical faults in washing machine.

o switch o motor o wiring

o plugs and cords o fuse

CONDITIONS:


Washing Machine

o Functional washing machine o Defective washing machine

62

Service Manual of Washing Machine

Electronic hand tools o Screw drivers (Philip, flat)

o Pliers o Diagonal Pliers o long nose pliers

o long chain nose pliers o Soldering Iron

o Wire stripper o Wrench (assorted) o Desoldering tools

o Cleaning brush o Test jig o High grade magnifying glass

METHODOLOGIES:

Discussion

Demonstration


ASSESSMENT METHODS:

Narrative report writing

Demonstration

63

LO 3 Maintain and repair washing machine


1. Personal protective equipment is used in accordance with the


2. Electro-static discharge (ESD) protection procedure is followed

in accordance with the current industry standards.

3. Defective parts/components are replaced with the identical




6. Cleaning of unit is performed in accordance with standard procedure.

CONTENTS:

Occupational Health and Safety practices

Electro-static Discharge (ESD) Protection Procedure

Component Checking and Replacement of Washing Machine

Procedures in Maintaining and Repairing of Washing

Machine

CONDITIONS: Students/trainees must be provided with the following:

Washing Machine

o Functional Washing Machine o Defective Washing Machine

Testing Instruments o Multi-testers (Analog/Digital)

Electronic hand tools o Screw drivers (assorted)

o Pliers (assorted) o Soldering Iron o Wire stripper

o Personal Protective Equipment

64


o Face/Dust Mask o Goggles

o Safety shoes o Workbench



METHODOLOGIES:

Demonstration

Group Discussion


ASSESSMENT METHODS:



65


DOMESTIC APPLIANCES


ELECTRIC FLAT IRON


skills and attitudes in maintaining and repairing electric flat iron.






LO 1. identify the parts and functions of electric flat iron;

LO 2. diagnose/troubleshoot electric flat iron defects; and

LO 3. maintain and repair electric flat iron.

66

LO 1 Identify the parts and function of electric flat iron


1. The parts of electric flat iron and their functions are identified

based on the manufacturer’s service manual.

2. Parts are handled in accordance with the manufacturer’s service manual.

CONTENTS:

Parts of Electric Flat Iron and its Function

Functions of the Parts of Electric Flat Iron

CONDITIONS:


Flat iron parts may include but not limited to

o Internal Parts Thermal Fuse

Heating Element o External Parts

Plug & Cord

Casing Handle

Manual

o Service manual

METHODOLOGIES:

Lecture/Discussion

Demonstration


ASSESSMENT METHODS:


Demonstration

67

LO 2 Diagnose/troubleshoot electric flat iron defects




2. System defect/fault symptoms are identified using appropriate

tools and equipment and in accordance with the safety procedures.

3. Identified defects and faults are explained to the responsible person (the teacher) in accordance with the enterprise or

company policy and procedures.

4. Results of diagnosis and testing are documented accurately and

completely within the specified time frame.

5. Customers (Assessors/Teachers) are advised/informed

regarding the status and serviceability of the unit as per procedure.

CONTENTS:

Procedure and Techniques in Performing Pre-testing of the

Electric Flat Iron

Troubleshooting Guide (Faults & Remedies) of Electric Flat

Iron

Tools, Equipment and Devices in Troubleshooting Electric

Flat Iron

CONDITIONS:


Service Manual

Electric Flat iron o Functional Electric Flat Iron

o Defective Electric Flat Iron


o Screw drivers (Philip, flat) o Pliers

diagonal pliers

long nose pliers long chain nose pliers

o Soldering Iron

o Wire stripper

Wrench (assorted)

Desoldering tools

Cleaning brush

68

Test jig

METHODOLOGIES:

Lecture/ Discussion

Demonstration


ASSESSMENT METHODS:


Demonstration

Performance Test

69

LO 3 Maintain and repair electric flat iron


1. Personal protective equipment is used in accordance with


2. Defective parts/components are replaced with identical




5. Cleaning of unit is performed in accordance with standard procedure.

CONTENTS:

Procedures in Maintaining and Repairing of Electric Flat Iron

Proper Care of Electric Flat Iron

CONDITIONS: Students/trainees must be provided with the following:

Electric Flat Iron o Functional electric flat iron

o Defective electric lat iron

Testing Instruments




o Soldering Iron o Wire stripper



o Face/Dust Mask

Workbench


o Soldering lead o Rags

70

o Cleaning brush

Service manual

Part list of electric flat iron

METHODOLOGIES:

Demonstration

Group Discussion


ASSESSMENT METHODS:


Demonstration

Performance test

71


DOMESTIC APPLIANCES


RICE COOKER


skills and attitudes on maintaining and repairing rice cooker.



PREREQUISITE : NONE



LO 1. identify the parts and functions of a rice cooker;

LO 2. diagnose a rice cooker and analyze the defects found; and

LO 3. maintain and repair rice cooker.

72

LO 1 Identify the parts and functions of a rice cooker


1. The operation of a rice cooker is explained. 2. The parts of a rice cooker are identified based on the

manufacturer’s manual. 3. The functions of each part are explained.

CONTENTS:

Operation of a Rice Cooker

Parts of a Rice Cooker

Functions of its Parts

Applications and Uses of Rice Cooker

CONDITIONS:


Actual Parts Rice Cooker

o Internal parts Heating Element Switch

o External parts Plug & Cord

Casing Pilot lamp

METHODOLOGIES:

Lecture/ Discussion

Demonstration

ASSESSMENT METHOD:


73

LO 2 Diagnose a rice cooker and analyze the defects found


1. Pre-testing procedure is performed in accordance with the manufacturer’s instructions.

2. System defects/fault symptoms are identified using appropriate tools and equipment.

3. Identified defects and faults are explained to the person in authority.


5. Troubleshooting is performed in accordance with the service manual.

CONTENTS:

Procedures and Techniques in Pre-Testing a Rice Cooker

Possible Faults and Corresponding Remedies

Tools, Equipment and Devices used in Troubleshooting a

Rice Cooker CONDITIONS:


Rice cooker o Functional Rice Cooker

o Defective rice Cooker

Tools, Equipment, Manuals

Service Manual

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHODS:


Actual/Practical Test

74

LO 3 Maintain and repair a rice cooker


1. Personal Protective Equipment is used in accordance with the


2. Defective parts/components are replaced with the identical equivalent ratings and repaired at the specified location.



5. The unit is cleaned after the maintenance and repair activity.

CONTENTS:

Component Checking and Replacement of Rice Cooker

Service-Manual Specifications of Rice Cooker

Identifying the Specification of Replacement Parts of Rice

Cooker

CONDITIONS:


Rice Cooker

o Functional Rice Cooker o Defective Rice Cooker

Testing Instruments




o Wire stripper



Workbench

Materials

o Wire, various sizes o Rags

o Cleaning brush

75

METHODOLOGIES:

Demonstration

Group Discussion


ASSESSMENT METHODS:


Demonstration

76


FOURTH

YEAR

77

UNIT OF COMPETENCY : MAINTAIN AND REPAIR AUDIO-VIDEO PRODUCTS AND SYSTEM

MODULE TITLE : MAINTAINING AND REPAIRING AUDIO PRODUCTS AND SYSTEM


skills and attitudes required to

maintain and repair audio products and system including diagnosing

faults, reassembling and testing audio products and preparing reports.



PREREQUISITE : Before the student can take this module, he/she should be able to

tests in different electronic components. In case training is required, he/she may take the

module applying quality standards.



LO 1. prepare audio units and workplace for maintenance/repair

of audio products;

LO 2. diagnose faults of audio products and systems; and

LO 3. maintain and repair audio products and system.

78

LO 1 Prepare audio units, tools and workplace for maintenance and repair of audio products


1. Work station is cleaned for repair activities in line with the

company requirements.

2. Necessary tools, test instruments and Personal Protective Equipment are prepared in accordance with their application or use.

3. Service manuals and service information required for repair and

maintenance are used as references. CONTENTS:

Work Safety Requirements

Tools, Equipment and Devices for Repairing Audio Products and System.

5’S Application

CONDITIONS:


Equipment

o AM- FM Radio Receiver o AM Radio receiver

o Professional audio/public address (PA) system (power amplifier)

o MP3

Instruments o Signal Generator-AF/RF

o Analog/Digital VOM o Oscilloscope

o Power Supply o Audio Frequency Counter o Distortion Analyzer

Electronic Hand Tools o Soldering Iron

o Soldering Stand o Desoldering Tools o Set of Screw Drivers (Philip, Flat)

79

o Pliers o Long Nose Pliers

o Diagonal Pliers o Long Chain Nose Pliers

o Utility Knife o Cleaning Brush

Supplies and Materials o Electronic Components

o Soldering Lead o Wires o Silicon Grease

o Soldering Flux o Requisition Slip

Accessories

o PPE Working clothes Hand Gloves

Mask Goggles

Learning Materials

o Work Plan o Service Manuals o IC Manuals

o Learning Elements METHODOLOGIES:

Lecture/Discussion

Demonstration

Self-paced/Modular approach

Simulation

ASSESSMENT METHOD:

Demonstration

80

LO 2 Diagnose faults of audio products and systems


1. Systematic pre-testing procedure is performed in accordance with

the manufacturer’s instructions.

2. System defects/fault symptoms are identified using appropriate

tools and equipment in accordance with safety procedure.


4. Identified defects and faults are explained.

CONTENTS:

Common Symptoms/Defects of Audio Products and System

Schematic Diagram of Audio Products and System

Troubleshooting Guide in Audio Products and System

5’S Application

CONDITIONS:


Equipment o AM- FM Radio Receiver

o AM Radio receiver o Professional audio/public address (PA) system (power

amplifier) o MP3/MP4 o VCD/DVD Player

Instruments

o Signal Generator-AF/RF o Analog/Digital VOM o Oscilloscope

o Power Supply o Audio Frequency Counter

o Distortion Analyzer


o Soldering Iron o Soldering Stand

o Desoldering Tools o Set of Screw Drivers (Philip, Flat)

81

o Pliers o Long Nose Pliers

o Diagonal Pliers o Long Chain Nose Pliers


Supplies and Materials o Electronic Components

o Soldering Lead o Wires o Silicon Grease

o Soldering Flux o Requisition Slip

Accessories

o Working Clothes

Learning Materials

o Work Plan o Service Manuals

o IC Manuals o Learning Elements

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHODS:

Oral questioning

Performance Test with Rubrics

82

LO 3 Maintain and repair audio products and system


1. Defective parts/components are replaced with their appropriate

equivalent.

2. Repaired parts/components are soldered in accordance with the best practice in industry.

3. Substitutions of parts are done in accordance with the manufacturer’s specification.


5. Care and extreme precaution in handling the unit/product are observed.

CONTENTS:

Instruction in Repairing the Defective Audio Products

Procedure in Pre-testing Audio Products and System

CONDITIONS:


Equipment

o AM- FM Radio Receiver o AM Radio receiver

o DVD/VCD player o Professional audio/public address (PA) system (power

amplifier) o MP3/MP4

Instruments

o Signal Generator-AF/RF o Analog/Digital VOM

o Power Supply


o Soldering Iron

o Soldering Stand o Desoldering Tools o Set of Screw Drivers (Philip, Flat)

o Pliers

83

Long Nose Pliers Diagonal Pliers


Supplies and Materials

o Electronic Components o Soldering Lead o Wires

o Requisition Slip

Accessories

o PPE Working clothes Hand Gloves

Mask Goggles

Learning Materials o Work Plan

o Service Manuals o IC Manuals o Learning Elements

METHODOLOGIES:

● Demonstration ● Self-paced approach

ASSESSMENT METHODS:

Direct observation

Oral questioning

Performance test using rubrics

84

UNIT OF COMPETENCY : MAINTAIN AND REPAIR AUDIO-VIDEO PRODUCTS AND SYSTEM

MODULE TITLE : MAINTAINING AND REPAIRING AUDIO - VIDEO PRODUCTS AND SYSTEM


skills and attitudes required to maintain and repair audio - video

products and system including diagnosing faults and reassembling video products and system.



PREREQUISITE : NONE



LO 1. prepare an audio - video unit, tools and workplace for

maintenance and repair of audio - video products and

system;

LO 2. diagnose faults of audio - video products and system; and

LO 3. maintain and repair the audio - video products and system.

85

LO 1 Prepare an audio - video unit, tools and workplace for maintenance and repair of video products and system


1. Work station is cleaned and set for repair activities in line with the

workplace requirements.

2. Necessary tools, test instruments and Personal Protective Equipment are prepared in line with the job requirements.

3. Service manuals and service information required for repair/maintenance are used as reference.

CONTENTS:

Work Safety Requirements

Tools, Equipment and Devices for Repairing Audio - Video Products & Systems

Service Manuals

CONDITIONS:


Equipment

o Television o PC Monitor

Wires

Silicon Grease

Soldering Flux

Requisition Slip

Accessories

PPE o Working clothes

o Hand Gloves o Mask

o Goggles

Learning Materials:

o Work Plan o Service Manuals o IC Manuals

o Learning Elements

86

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHODS:


Demonstration

87

LO 2 Diagnose faults of audio - video products and system


1. Systematic pre-testing procedure is observed in accordance with

the manufacturer’s instructions.

2. System defects/fault symptoms are identified using the appropriate tools and equipment.


4. Identified defects and faults are explained to the person in

authority.

CONTENTS:

Common Symptoms/Defects of Audio - Video Products and System

Different Test Instruments and Hand Tools

Block and Schematic Diagram of Audio - Video Products and

System

Pre-testing Procedure in Diagnosing Faults in Video Products and

System

Troubleshooting Guide in Audio - Video Products and System

CONDITIONS:


Equipment o Television

o PC Monitor

Instruments

o Step down transformer o Analog/Digital VOM

o Oscilloscope o High Voltage Tester o Electronic Hand Tools

Soldering Iron Soldering Stand

Desoldering Tools Set of Screw Drivers (Philip, Flat) Pliers

Long Nose Pliers

Diagonal Pliers

88

Long Chain Nose Pliers

Utility knife

Cleaning Brush

Supplies and Materials

o Electronic Components o Soldering Lead

o Wires o Silicon Grease o Soldering Flux

o Requisition Slip

Accessories: o PPE-Working clothes

o Learning Materials:

Work Plan

Service Manuals IC Manuals

Learning Elements

METHODOLOGIES:

Lecture

Demonstration

Try-out exercise

ASSESSMENT METHODS:


Oral Questioning

Demonstration

89

LO 3 Maintain and repair audio - video products and system


1. Defective parts/components are replaced with their counterparts

and repaired at the specific location.

2. Control settings adjustments are performed in conformity with the service manual.


4. Care and extreme precaution in handling the unit are observed in

accordance with the manufacture’s recommendation.

5. The unit is reassembled and tested.

6. The unit is cleaned after the repair activity.

CONTENTS:

Reading Schematic Diagrams

Procedure in Repairing Audio - Video Products Assembling and Testing Audio - Video Products


Equipment

o Television o PC Monitor

Instruments

o Step down transformer o Analog/Digital VOM

o Oscilloscope o High Voltage Tester o Electronic Hand Tools

Soldering Iron Soldering Stand

Desoldering Tools Set of Screw Drivers (Philip, Flat)

o Pliers

Long Nose Pliers Diagonal Pliers Long Chain Nose Pliers


90

Supplies and Materials:

o Electronic Components o Soldering Lead o Wires

o Silicon Grease o Soldering Flux

o Requisition Slip

Accessories

o PPE-Working clothes

o Learning Materials Work Plan Service Manuals

ECC substitutional manual Learning Elements

METHODOLOGIES:

● Demonstration ● Group Discussion

● Self-paced approach ● Experimentation

ASSESSMENT METHODS:


Direct Observation

91

UNIT OF COMPETENCY : SERVICE AND REPAIR OF CELLULAR PHONE

MODULE TITLE : SERVICING AND REPAIRING LOW-END CELLULAR PHONE


skills and attitudes required in the

service and repair of low – end cellular mobile phones for text and

call features.



PREREQUISITE : NONE



LO 1. identify the parts of a low-end cellular phone unit and interpret a schematic diagram;

LO 2. diagnose a low-end cellular phone unit and analyze

the defects found;

LO 3. maintain and repair a low-end cellular phone unit; and

LO 4. test a repaired low-end cellular phone unit.

92

LO 1 Identify the parts of a low-end cellular phone unit and

interpret a schematic diagram


1. The parts of a low-end cellular phone unit are identified based

on the manual’s specifications.

2. The functions of its parts are identified and explained. 3. Schematic diagrams are interpreted in accordance with the


4. A cellular phone is identified for feature enhancements based on the specifications of the unit.

CONTENTS:

Parts of Low-End Cellular Phone - External Parts

- Internal Parts

Functions of its Parts

Schematic Diagram of Low – End Cellular Phone

Identifying Cellular Phone for Feature Enhancement

CONDITIONS:


Schematic diagram of low - end cellular phone

Service manual of low - end cellular phone

- operating instruction - user’s manual

- list of parts

1pc/model of cellular phone unit (Nokia 3210, 3310)

METHODOLOGY:

Lecture/Discussion (Multi-media presentation may also be used depending on the

availability of school facilities)

ASSESSMENT METHODS:


Interview

93

LO 2 Diagnose a low-end cellular phone unit and analyze the

defects found


1. A customer is interviewed to determine the possible causes of

defects of a cellular phone unit.

2. Pre-testing of a cellular phone is observed in accordance with the manufacturer’s manual.

3. Visual inspection of the internal components is conducted for

possible defects. 4. Troubleshooting is performed based on the manufacturer’s

manual. CONTENTS:

Common Symptoms/Defects of a Low-End Cellular Phone

Pre-Testing Procedure of Low – End Cellular Phone Unit

Troubleshooting Procedure of Low – End Cellular Phone Unit

CONDITIONS:


1pc/model of Cellular phone unit ( Nokia3210, 3310)

o functional low-end cellular phone o defective low-end cellular phone

Schematic diagram of low – end cellular phone

Service manual of low – end cellular phone

Workplace

Tools and equipment

- Hot air soldering tools (Rework station, Leolus600) - Variable regulated power supply (6A, 12A)

- Soldering iron (0-40 watts variable temperature) - Tweezers - Screw driver (flat, Philip)

- Multi-tester (analog/digital) - Test jig

- ESD- free work bench with mirror - High grade magnifying glass with lamp - Cleaning brush (non static)

- Soldering lead (60/40,70/30.50/50,) - Eraser (staedler, white) - Cleaning agent

94

- Plate for reball/magnetic handle

METHODOLOGIES:

Lecture/Discussion

Demonstration

Multi-media presentation

ASSESSMENT METHOD:

Demonstration

95

LO 3 Maintain and repair a low-end cellular phone unit


1. Components are tested using appropriate tools and equipment according to troubleshooting service manual.

2. Defective parts/components are replaced following instruction in the troubleshooting manual.

3. Parts are properly handled in accordance with the

manufacturer’s service manual. 4. Cleaning of the unit is performed.

5. Safety precaution in maintaining and repairing a low-end cellular phone are observed.

CONTENTS:

Proper Handling of Tools and Equipment Used in Repairing Low-End Cellular Phone Unit

Tools in Maintaining and Repairing a Low-End Cellular Phone

Maintenance and Repair Procedure of Low-End Cellular Phone

Unit

CONDITIONS:


1pc/model of cellular phone unit (Nokia3310) o functional low – end cellular phone

o defective low-end cellular phone

Schematic diagram of a cellular phone for text and call features

Service manual

Workplace

Utility knife

Clean rags

Tools and equipment

- Hot air soldering tools (Rework station, Leolus600) - Variable regulated power supply (6A, 12A)

- Soldering iron (0-40 watts variable temperature) - Tweezers

- Screw driver (flat, Philip) - Set of torx/star bit - Multi-tester (analog/digital)

- Wire stripper

96

- Test jig - ESD- free work bench with mirror

- High grade magnifying glass with lamp - Cleaning brush (non static)

- Soldering lead (60/40,70/30.50/50,) - Eraser (staedler, white) - Cleaning agent

- Wires (stranded, solid #22) - Silicon grease - Board for reworks

- Plate for reball/magnetic handle

METHODOLOGIES:

Lecture / discussion

Demonstration

ASSESSMENT METHODS:


Demonstration

97

LO 4 Test a repaired low-end cellular phone unit


1. A repaired unit is reassembled according to given procedure.

2. A reassembled unit is tested and cleaned in conformity with the manufacturer’s specifications.

3. Service completion procedure and documentation are complied

with based on the manual.

CONTENTS:

Procedure in Assembling and Disassembling a Low-End Cellular

Phone Unit

Procedure in Testing an Assembled Low-End Cellular Phone

Unit

CONDITIONS:


1pc/model of cellular phone unit ( Nokia3210) o Functional low – end cellular phone

Service manual of low – end cellular phone

Electronic Tools and equipment

o Cell phone charger o Multitester (analog/digital)

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHODS:


Demonstration

98

UNIT OF COMPETENCY : SERVICE AND REPAIR A CELLULAR PHONE

MODULE TITLE : SERVICING AND REPAIRING A HIGH-END CELLULAR PHONE


skills and attitudes required to

service and repair high –end cellular mobile phones for MMS, radio,

bluetooth, infrared, camera, 3G and software applications.



PREREQUISITE : NONE



LO 1. identify the parts of a high-end cellular phone unit and

interpret a schematic diagram;

LO 2. diagnose and analyze the defects found in a high-end

cellular phone unit;

LO 3. maintain and repair a high-end cellular phone unit;

LO 4 test a repaired high-end cellular phone unit; and

LO 5. install additional features.

99

LO 1 Identify the parts of a high-end cellular phone unit and interpret a schematic diagram


1. The parts and functions of a high-end cellular phone are

identified and explained. 2. Enhancement features of the high – end cellular phone are

identified, based on the manual’s specifications.

CONTENTS:

Parts of a High-End Cellular Phone

Enhancement Features of High – End Cellular Phone

Software Applications for Additional Features

CONDITIONS:


1pc/model of Cellular phone unit ( Nokia30….series,N70….series)

Schematic diagram of high-end cellular phone unit.

Service manual of a high – end cellular phone

o operating instruction

o user’s/owners manual o parts list

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHODS:

Written Test (objective type)

Test with Questioning

100

LO 2 Diagnose and analyze the defects found in a high-end

cellular unit


1. A customer is interviewed to determine the possible

causes of defects of a high – end cellular phone.

2. Pre-testing of a cellular high – end phone is performed in accordance with the manufacturer’s manual.

3. Visual inspection in the internal components is

conducted for the possible defects. 4. Troubleshooting is performed in accordance with the

manufacturer’s manual. CONTENTS:

Pre-Testing Procedure of High-End Cellular Phone

Common Symptoms/Defects of a High-End Cellular Phone

Troubleshooting Procedure of a High – End Cellular Phone

CONDITIONS:


cellular phone unit ( Nokia30….series,N70….series)

o Functional high – end cellular phone o Defective high – end cellular phone

Schematic diagram of high end cellular phone unit

Service manual

Tools and equipment

o Hot air soldering tools (Rework station, Leolus600) o Variable regulated power supply (6A, 12A)

o Soldering iron (0-40 watts dual heat o Tweezers

o Set of torx/star bit o Multitester (analog/digital) o Test jig

o ESD- free workbench with mirror o High grade magnifying glass with lamp o Cleaning brush (non static)

o Soldering lead (60/40,70/30.50/50,) o Eraser (staedler, white)

101

o Cleaning agent o Plate for reball/magnetic handle

METHODOLOGIES:

Lecture/Discussion

Demonstration ASSESSMENT METHODS:


Demonstration

102

LO 3 Maintain and repair a high-end cellular phone unit


1. Components are tested using appropriate tools and equipment

in accordance with the manufacturer’s service manual. 2. Defective parts/components are replaced according to the

troubleshooting manual.

3. The parts are properly handled in accordance with the manufacture’s service manual.

4. The unit is cleaned in accordance with the manufacturer’s

service manual. 5. Safety precaution is observed in maintaining and repairing a

high-end cellular phone. CONTENTS:

Repairing Procedure on a High End Cellular Phone Unit

Tools in Maintaining and Repairing High-End Cellular Phone

Proper Handling of High – End Cellular Phone (maintenance)

CONDITIONS:


1pc/model of Cellular phone unit ( Nokia30….series,N70….series) o Functional high – end cellular phone

o Defective high – end cellular phone

Schematic diagram of a high - end cellular phone

Service manual of a high – end cellular phone

Computer

Workplace

Utility knife

Clean rags

Tools and equipment o Hot air soldering tools (Rework station, Leolus600)

o Variable regulated power supply (6A, 12A) o Soldering iron (0-40 watts dual heat)

o Tweezers o Screw driver (flat, Philip) o Set of torx/star bit

o Open tool for nokia66…and 76… model and version. o Allen wrench o Multitester (analog/digital)

o Wire stripper

103

o Test jig o ESD- free work bench with mirror

o High grade magnifying glass with lamp o Flashlight/pen light (3volts)

o Cleaning brush (non static) o Soldering lead (60/40,70/30.50/50,) o Eraser (staedler, white)

o Cleaning agent o Wires (stranded, solid #22) o Silicon grease

o Software flasher (N-box, tornado, twister, power flasher, griffin, all latest version)

o Board for reworks o Plate for reball/magnetic handle

METHODOLOGIES:

Lecture

Demonstration

ASSESSMENT METHOD:

Demonstration

104

LO 4 Test a repaired high-end cellular phone unit


1. Repaired unit is reassembled according to a given procedure.

2. Reassembled unit is subjected to final testing and cleaning in conformity with the manufacturer’s specifications.

3. Service completion procedure and documentation are complied

with per manual of instruction.

CONTENT:

Procedure in Testing an Assembled High-End Cellular Phone

Unit

CONDITIONS:


1pc/model of high - end cellular phone unit ( Nokia

90….series,N70….series)

Service manual of high – end cellular phone

Tools and equipment o Cell phone charger

o Multitester (analog/digital)

METHODOLOGIES:

Lecture/Discussion

Demonstration

ASSESSMENT METHODS:

Demonstration

Performance test with rubric

105

LO 5 Install additional features


1. Software applications are identified according to their uses based on the specification manual.

2. Computer specifications are identified based on the software and hardware specifications in accordance with the manufacturer’s service manual.

3. Cellular phone is identified for other software application based on the specification of a unit.

4. Additional features are installed in accordance with service manual.

CONTENTS:

Software Installer

o twister o Owner flasher

Additional Features of a High-End Cellular Phone o Additional memory

o Backlight o Housing and accessories

o Ring tones o Games o Logos

o MP3/MP5 o Wallpapers

CONDITIONS:


1pc/model of high end cellular phone unit ( Nokia 90….series,N70….series)

Application software

Workbench

Software Installer

Personal Computer

USB cable, card reader, adaptor for mini-SD

106

METHODOLOGIES:

Lecture/Discussion

Demonstration

Practice exercise

ASSESSMENT METHOD:

Demonstration

107

ACKNOWLEDGMENT

Copyright Department of Education 2008

First Published JUNE 2008

This module is based on the Competency-Based Curriculum-Contextual Learning Matrix (CBC-CLM) and finalized on the Instructional Modules Finalization Development Workshop conducted at the

Development Academy of the Philippines, Tagaytay City on May 6 -10, 2008

This learning instrument was developed by the following personnel: TECHNOLOGY TEACHERS:

MR. VIC P. DIOLA – GROUP LEADER BAUAN TECHNICAL HIGH SCHOOL

DR. GILBERT M. CASTOR DON ALEJANDRO ROSES SR. SCIENCE-TECHNOLOGY HIGH SCHOOL

MR. EDDIELOU L. DAYAO SANCHEZ MIRA SCHOOL OF ARTS AND TRADE

MR. RUFO G. MALLA E. RODRIGUEZ VOCATIONAL HIGH SCHOOL

MR. SHERWIN P. MEDRANO SAN. PEDRO RELOCATION CENTER NATIONAL HIGH SCHOOL

MR. REMAR C. PINSOY BAGUIO NATIONAL SCHOOL OF ARTS AND TRADE

CONTEXTUAL TEACHER:

MRS. DAISY CAROUSEL P. CERVANTES DON ALEJANDRO ROSES SR. SCIENCE-TECHNOLOGY HIGH SCHOOL

FACILITATORS:

Dr. Edward dela Rosa TEC-VOC Task Force

Dr. Corazon L. Echano TEC-VOC Task Force

Encoders:

MRS. ROSARIO D. BRIONES

Mr. Mhariel L. Echano

Mr. Jason O. Villena

FUNDING: DEPARTMENT OF EDUCATION

108

ACKNOWLEDGMENT

Copyright Department of Education 2009

First Published JUNE 2008

This module is based on the Competency-Based Curriculum-Contextual Learning Matrix (CBC-CLM) refined during the Writeshop on the Refinement and Enrichment of Competency-Based Curriculum and

Contextual Learning Matrix of ARTS abd TRADES Specializations at Marikina Hotel, Marikina City on April 20 – 25, 2009.

This learning instrument was refined and enriched by the following educators:

TECHNOLOGY TEACHERS:

MR. VICTORINO P. DIOLA – GROUP LEADER TVE COORDINATOR, BAUAN TECHNICAL HIGH SCHOOL

BAUAN, BATANGAS

MR. REYNALDO C. CUNANAN HEAD TEACHER VI, E. A. RODRIGUEZ VOCATIONAL HIGH SCHOOL

NAGTAHAN, SAMPALOC, MANILA

MRS. GIGI C. CORPUZ TEACHER III, MALVAR NATIONAL HIGH SCHOOL

MALVAR, BATANGAS

MR. ISMAEL G. GALLARDO TEACHER I, COMMUNITY VOCATIONAL HIGH SCHOOL MASIPIT, CALAPAN CITY, ORIENTAL MINDORO

MR. RUFO G. MALLA TEACHER II, E. A. RODRIGUEZ VOCATIONAL HIGH SCHOOL

NAGTAHAN, SAMPALOC, MANILA

MR. GEORGE B. FUAZO TEACHER II, GEN. MARIANO ALVAREZ TECHNICAL HIGH SCHOOL

GMA, CAVITE

109

CONTEXTUAL TEACHER: ENGLISH

MRS. TERESITA P. TANAEL TEACHER III, GEN. MARIANO ALVAREZ TECHNICAL HIGH SCHOOL

GMA, Cavite

Mrs. Charlie I. Soriano

Teacher I, Don Alejandro Roces Sr. Science-Technology HS Quezon City

Mathematics

Mrs. Analiza Rosa P. Librada

Teacher I,-Mathematics Coordinator, San Pedro Relocation Center Nat’l. HS

San Pedro, Laguna Science

Mrs. Gemma G. Vallarta Teacher III Science Coordinator, San Pedro Relocation Center

Nat’l. HS San Pedro, Laguna

Mrs. Lenalyn Manzano Teacher I, E A. Rodriguez Vocational High School

Nagtahan, Sampaloc, Manila

FACILITATORS:

Dr. Corazon L. Echano

TEC-VOC Task Force

Dr. Victorio N. Medrano

TEC-VOC Task Force

Dr. Orlando E. Manuel

TEC-VOC Task Force

Encoders:

MARISOL E. SALDIVAR

FUNDING: DEPARTMENT OF EDUCATION

110

Electronics

Documents

hs san pedro

cell phone charger

professional audio public address

requisition slip accessories

end cellular phone

identical equivalent ratings

interpreting technical drawing

dc power supply