Business Opportunities in Radio, TV and Electronic Works
Business Opportunities in RTV.
Select business field for growth and advancement
Customer Relation
Appear neat and well groomed.
Apply courteous action to solve customers’ complaints
Promote employer’s image.
Answer phone calls using appropriate answering techniques.
Finance
List the sources of capital.
Name Bank and Credit Union.
Business Management
Compare or balance credit against debit. .
State purchasing method.
Fill business records appropriately
Diagnosis and Repair of Colour TV Receiver
Identify symptoms and faults common to each stage of a colour TV set.
Differentiate between static and dynamic color convergence and operate the colour.
Diagnosis and Repair of Black and White (Monochrome) TV Receiver
State the procedures for TV repairs.
Interpret service manuals and Circuit diagrams.
Identify the symptoms and clear faults common to tuner, IF amp, Video amp, CRT and synchronizing stages.
Operate various electronic instruments to clear faults in a TV set.
Principles of Operation Colour Television Receiver
State the primary colours.
Explain the major system and standards for colour transmission and reception.
List the components of colour signal in television system.
Principles of Colour Signal, Transmission and Reception
Draw the block diagram of Colour Television receiver.
State the function(s) of each stage of colour television receiver
Describe the processing of picture and sound signal at different stages of a colour TV Receiver.
Monochrome Television Receiver
Explain the basic concept of Television Receiver.
Draw the block diagram of a monochrome Television Receiver.
Explain the functions and operation of a monochrome Television Receiver.
Sound Reproduction in Television Receiver
Explain the Sound Signal form and path from the receiver to the loud speaker.
Image Reproduction in Television Receiver
Describe how image is reproduced by the process of scanning in television receiver.
Explain the video signal path from the antenna to the picture tube or the display unit.
Television Transmitter
Explain the basic working principle of a Television Transmitter.
Draw the block diagram of a Television Transmitter.
Explain the function(s) of each of the stages of a Television Transmitter.
Oscillators and Multi-Vibrators
Explain the basic principles, designs and applications of simple Oscillators and Multivibrators
Build a simple Oscillator and Multivibrator.
Explain the various types of Oscillators and their applications.
Explain the various types of MuItivi brators and their applications.
Feedback
Explain the basic concepts of feed back amplifiers.
Explain types of negative feed back and their characteristics.
Explain effects of positive feed back on amplifiers.
Advantages of negative feed back.
Resistive, Inductive and Capacitive(RIC) Circuits
Calculate simple problems involving inductive and capacitive reactance.
Calculate simple problems involving RC, RL, LC, and RLC Circuits.
Fault Finding Equipment
Identify each of the Instruments.
Explain the operations, uses of functional parts and limitation of fault finding equipment.
Localizing fault to a component using test equipment.
Repair faults.
Kirchhoff’s Laws
Defining and stating vector diagrams.
Kirchhoff’s law.
Current law,
Voltage law.
Explaining current law using vector diagram.
Solving simple numerical problems involving Current and Voltage law.
Stating uses of Kirchhoff’s law and its advantages over Ohm’s law.
Safety Precaution in Television Workshop
Students should be able to:
Discharge smoothening Capacitor(s) in the power supply section of the Television.
Clean debris .’ and dust . collected around high voltage cage or the anode of the tube.
Take care and dispose picture tube properly.
Replace fuse and sensitive components with the right specification.
Radio Transmitter
Explain the function(s) and operation of radio transmitter.
Draw the block diagram of radio transmitter.
Explain the function(s) of each stage of radio transmitter
Lesson 28
Lesson 28