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Contents
About WAEC Syllabus
WAEC Syllabus is a subject outline that contains topics that a candidate intending to seat for an examination for that particular subject is required to cover prior to the exam in order to stand a chance of performing excellently in the exam.
Speaking of WAEC Syllabus for Radio, Television And Electronics Works, It therefore means that it’s an outline that contains all the topics for Radio, Television And Electronics Works that each candidate who enrol for Radio, Television And Electronics Works is expected to cover prior to the examination date. If you intend to sit for JAMB, checkout JAMB Syllabus for all Subjects here.
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WAEC Syllabus For Radio, Television And Electronics Works
Without wasting much time, the syllabus for Radio, Television And Electronics Works are as follows:
Aims And Objectives / Preamble
PREAMBLE
This examination syllabus evolved from the Senior Secondary School curriculum for Trade Subjects. It is intended to give candidates  insight into the world of Radio, Television and Electronics Works; improve their attitude towards the maintenance and repairs of  radio, television and electronic equipment and enable them to appreciate the relationship between science and technology.
OBJECTIVE
The objective of the syllabus is to test the candidates’ knowledge and understanding of the following:
- Workshop Safety Rules and Regulations;
- Basic Electricity;
- Electronic Tools and Instruments;
- Electronic Devices and Circuits;
- Electronic Communication Systems;
- Workshop Practice and Maintenance;
- Entrepreneurship in Radio, Television and Electronics Works.
EXAMINATION SCHEME
There will be three papers, Papers 1, 2 and 3, all of which must be taken. Papers 1 and 2 shall be a composite paper to be taken at one sitting.
PAPER 1:Â will consist of forty multiple-choice objective questions, all of which are to be answered in 45 minutes for 40 marks.
PAPER 2: will consist of six short-structured questions. Candidates will be required to answer any  four in 1 hour for 60 marks.
PAPER 3: Â will be a practical test of 2 hour duration. It will consist of three skill-based questions out of which candidates will answer two for 90 marks.
A list of materials for the test shall be made available to schools not less than two          weeks before the paper is taken for materials procurement and relevant preparations.
Alternative to Practical Work:
Alternatively, in the event that materials for the actual practical test cannot be acquired the Council may consider testing theoretically, candidates’ level of acquisition of the practical skills prescribed in the syllabus. For this alternative test, there will be two compulsory questions to be answered in 2 hours for 100 marks.
Industrial Attachment:
This should be done by the candidates during the long vacation between their SS II and    SS III course. It will be supervised and assessed by their subject teachers. It will carry 10 marks.
DETAILED SYLLABUS
| Â TOPIC Â | Â NOTES |
|  1. Workshop Safety Rules and Regulations  1.1 Sources and Prevention of Hazards 1.2 Safety Checks in Servicing Radio Receiver 1.3 Safety Precautions in Television Workshop    2. Basic Electricity 2.1 Structure of matter 2.2 Conductors, insulators and semiconductors 2.3 Current, voltage and resistance 2.4 Electronic components 2.5 Resistors and Capacitors 2.6 Kirchhoff’s Current and Voltage Laws 2.7 Diodes and Transistors 2.8 Battery 2.9 Ohm’s law 2.10 Electric power 2.11 Direct and Alternating Current 2.12 Alternating waveform 3. Electronic Tools and Instruments  3.1 Electronic hand tools 3.2 Electronic measuring instruments 3.3 Fault Finding Equipment 4. Electronics Devices and Circuits  4.1 Meaning of Electronics and Electronic circuit 4.2 Concept of emission and photoelectric devices 4.3 Semiconductors devices 4.4 Power Supply Unit 4.5 Amplifiers 4.6 Resistive, Inductive, Capacitive (RLC) circuits 4.7 Feedback 4.8 Oscillators and Multivibrators 5. Electronic Communication Systems  5.1 Electronic Communication Systems 5.2 Electromagnetic spectrum 5.3 Transducer 5.4 Modulation and demodulation 5.5 Radio transmitter and receiver 5.6 Selectivity and sensitivity 5.7 Resonant circuit 5.8 Satellite Communication Systems 5.9 Television Transmitter 5.10 Image and Sound Reproduction in TV receiver 5.11 Monochrome Television Receiver 5.12 Principles of operation of Colour Television Receiver 5.13 Principle of Colour Signal, Transmission and Reception 6. Workshop Practice and Maintenance  6.1 Soldering and Desoldering in Electronic Circuits 6.2 Electronic Repairs 6.3 Fault finding and repairs in radio receiver 6.4 Electronic Measuring Instruments 6.5 Diagnosis and Repair of Black and White TV Receiver 6.6 Diagnose and Repair of a Colour Television Receiver 7. Entrepreneurship in Radio, Television and Electronic Works  7.1 Business Management and Finance 7.2 Customer Relations 7.3 Business Opportunities in Radio, TV and Electronics works  |    Concept of safety Sources of hazards Treatments should include electric shock, damp or wet floor, wrong handling of tools, improper workshop dressing, horse play in the workshop Preparation of work areas Capacitor discharges Working on power lines and live circuits Handling of tools Power supplies in T.V. Picture tube High voltage section Component rating Definition and structure of matter Atomic structure Qualitative treatment only – definition and uses Definition, units and symbols of voltage, current and resistance Laws of attraction and repulsion of charges Identification of components by name, type, graphical symbol, value and rating Treatments should include resistors, capacitors, inductors, diodes, transformers, transistors, integrated circuit etc Graphical symbols, types, values and ratings Colour code of resistors and capacitors Comparison between meter measured and colour code values Testing of capacitors Concepts, definitions and calculations Types, graphical symbols and structure Treatments should include testing for diodes and transistor configuration (CC,CE and CB) Graphical symbol of a battery( primary cell and secondary cell) and types Testing of battery Treatments should include difference between wet and dry cells Definition Symbols and relationship between voltage, current and resistance. Resistors in series and parallel Definition, measurement and calculation Definitions, difference, uses and measurement of d.c. and a.c. Definition and calculation Treatments should include r.m.s., peak, and average values, frequency and period in an a.c. waveform Types and uses Treatments should include screw drivers, diagonal cutters, soldering gun, soldering iron, lead sucker or de- soldering tools, pocket knife, stripper and soldering wick Identification, uses and operation Treatments should include voltmeter, ammeter, ohmmeter, multi meter Basic a.c. and d.c. circuit, measurements of voltage, current and resistance Ohmmeter for testing semiconductor devices Identification of faulty meter Identification, uses and operation Treatments should include oscilloscope, signal tracer, digital frequency counter, logic probe, TV analyzer Definition Definition and application Treatments should include types of emission e.g. Thermionic, photoelectric, field and secondary Semiconductor theory and types Semiconductor diodes Treatment should include rectification, principles of operation, characteristics and application Principle and operation, schematic diagram Rectification and types Filters Construction of stabilized low d.c. power supply unit Operation, construction and uses of Class A, B, C and AB amplifiers Quantitative treatments only Concept of feedback Differences between types and their advantages Effect of a positive feedback on amplifiers, bandwidth, noise, gain and distortion Principle and types of oscillator Construction of a typical oscillator circuit Types of multivibrator Treatments to include astable, bistable and monostable Definition and types Block diagram, operation and function of each stage Noise Definition and classification Propagation of radio waves Radio frequency band- VLF, LF, MF, HF, VHF, UHF,SHF and EHF Application of frequency range in electronic communication – frequency spectrum to be intensified Definition, types and functions Treatments should include loudspeaker, microphone, video camera, video display unit(cathode ray tube(CRT),Liquid Crystal Display(LCD)) Definition, principle of operation and types of modulation AM and FM waveforms and envelopes Percentage of modulation – modulation index and modulation factor Meaning and function of carrier wave in radio communication. Definition and types of demodulation Function(s) and operation Block diagram and function of each stage Types of radio receivers – Tuned Radio Receiver(TRF), super heterodyne receivers(FM and AM) Advantages and disadvantages of each Definition Concept and function of tuner in radio receiver Identification of tuner stage in radio receiver Definition, types of resonance ( series and parallel) Concept of bandwidth and bandwidth ranges Calculation involving frequency ranges to determine bandwidth Treatments should include derivation of the formula for resonant frequency Elements and types Transmission and reception Antenna Working principle Block diagram Stages Principle of scanning Video signals Principle of FM detection Concept of Television Function and operation Application of television system Block diagram and function of each stage Processing of picture and sound signal Primary colours in television Colour television systems and standards – PAL, SECAM and NTSC Colour signal components Techniques and precautions Types of solder Types of flux – amber resin and NaCl solutions Dismantling and reassembling of power supply unit in a radio set Dismantling and reassembling RF, IF detector Stages in a radio receiver set AF amplifier circuit Installation and maintenance of a car radio set Diagnose fault by using fault finding pieces of equipment and logical trouble shooting procedure Components responsible for faults Remedies for the faults Alignment of RF and IF stages of a radio set using the necessary equipment and tools Use of multimeter Treatments should include measurement of the correct value of current, voltage and resistance in active and passive electronic components and circuits Procedure for TV repairs Use of service information manual and circuit diagram Identification of symptoms and repair of faults Fault clearing instruments Symptoms of faults Fault clearing at each stage Static and dynamic colour convergence comparison Colour bar generator and signal testing Accounting practices Cost benefit analysis Purchasing method Business records(Accounting ledger, Repair order form, Inventory sheet) Sources of capital e.g. Banks and Credit Unions Daily appearance at work Customer psychology Working relations Telephone courtesy Business Opportunities in Radio and TV Work Satellite installation Electronic specialist Radio and TV consultant Radio and TV technician Sales and Service Craft man Antenna and TV installation work
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- LIST OF FACILITIES AND MAJOR EQUIPMENT/MATERIALS REQUIRED
- Â Screw drivers
- Â Diagonal cutters
- Â Soldering gun,iron and lead
- Â Desoldering tools
- Â Pocket knife
- Â Stripper
- Â Semiconductor diodes
- Â Digital and analog multimeters
- Â Loudspeaker, microphone
- Cathode Ray Tube/LCD
- Nose pliers
- Old electronics panel
- Resistors, capacitors, inductors, transistors
- Vero board/breadboard
- C. power supplies
- Transformers
- Radio and television sets
- Oscilloscope
- Signal generator
- Magnifying glass
- Pattern generator (TV)
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