A schematic diagram is a picture that shows all the parts of a particular system; it is a drawing that uses symbols to represent important information. Schematics are frequently used to illustrate electrical or mechanical systems, but people create schematic diagrams to convey all sorts of information, and you have plenty of reasons to learn how to read a schematic diagram, even if you’re not a builder or an engineer. For example, a street map is a schematic diagram of a city, and it can help you find the place you want. If you haven’t done it yet, the day is coming when you will need to build a bookshelf unit, put together a child’s toy or install a new carburetor in your car, referring to a schematic diagram that explains the process. So learn to read a schematic diagram, select a simple project and begin to broaden your horizons.
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Difficulty:
Moderate
Instructions
1
Read the entire schematic before you begin building anything to make certain you understand how the project is supposed to go. Pay particular attention to any warnings or special notes. Lay the diagram out flat, and go through it from beginning to end.
2
Understand what each symbol in the schematic represents. The schematic will not have much meaning if you cannot properly identify the symbols. If you don't know a symbol, find a key someplace on the diagram.
3
Review the list of components included in the project. You need to be able to identify every nut, bolt and piece of whatever it is you’re building. Lay all the pieces out in an orderly way, and compare them to the drawings in the schematic. Your project may include several different sizes of the same type of component; sort them and identify them according to the diagrams.
4
Find the starting point, or first step, on the schematic. Follow the lines, arrows and numbers that connect the symbols to complete each step as illustrated in the diagram. Continue to follow the steps for the project in the proper order to the end.
Tips & Warnings
Be patient. If you don't understand something on the schematic, step back and review what you do know to make more sense of the diagram.
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