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     The Schematic Workbook       

The Schematic Workbook

    In the electrical and electronic industry. a schematic diagram is often used to describe the design of equipment. Schematic diagrams are often used for maintenance and repair of electronic and electromechanical systems.
   Electricity is essential for light, power, air-conditioning, and refrigeration. Electricians install and maintain electrical systems for a variety of purposes, including climate control, security, and communications. They also may install and maintain the electronic controls for machines in business and industry. Although most electricians specialize in either construction or maintenance , a growing number do both. You must have knowledge of Ohm's law and theory, before you can successfully troubleshoot electrical equipment. However, unless you know how to apply Ohm's Law and theory, and make tests, your knowledge is useless. Theory and practical application must go hand-in-hand.


    It is extremely important for you to become familiar with the various symbols used. You will have to use this type of diagram throughout your career, because manufacturers of electrical equipment seldom supply a pictorial diagram, it is far easier to work from a schematic once you learn how to use it.
    Start first with simple schematics, and gradually work up to more complex ones. In time, you will be as much at ease reading reading a complex schematic diagram as you are reading your newspaper. You will soon learn the value of this type of diagram and see how much easier it is to use than the pictorial type.
    Symbols commonly used to represent resistors, capacitors, and ground connections.


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