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How to Read a Schematic
Schematics are the maps that provide guidance on the functioning, assembly and service of an electronic circuit. Without a schematic, only an undocumented mass of components and wires would be presented to the user or service technician. A schematic allows the user or service technician to understand the circuit function and become familiar with how the desired effect of the electronic circuit is achieved. Use these tips to learn how to read schematics. To create this article, volunteer authors worked to edit and improve it over time. Together, they cited 5 references. This article has also been viewed , times.
In electronic equipment, there has been a continuous move toward more complexity and increased miniaturization. These trends make troubleshooting and diagnosis ever more difficult. For an elevator motion controller in a public building, the stakes are high, because any outage, even for an hour. Additionally, there are health and safety issues that intensify the scenario. Consider a bank of elevators in a healthcare facility paralyzed by the failure of a single discrete component soldered in place on one of many circuit boards. Repair technicians can open enclosures and visually inspect their contents, often in vain. Sometimes, a burnt device, wire or termination will reveal the point of failure, but more often, the circuitry will just stare back at you.
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every component that a circuit contains, with each component having its own special symbol. This book is devoted mostly to schematics. 3. A pictorial diagram .
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Schematic Symbols (Part 1)
Paul Spinrad is a broad-spectrum enthusiast, writer, maker, and dad who lives in San Francisco. They serve as a map or plan for assembling electronics projects, and they are easy to read — far easier than understanding how the circuits they describe actually work. This is an important point: You can read and successfully build from a schematic diagram without understanding the circuit. Schematics are also readily available for countless easily-buildable electronic devices. Do you hear that? Schematic diagrams are made up of two things: symbols that represent the components in the circuit, and lines that represent the connections between them. Circuit diagrams depict a perfect world where wires and other conductors do not interfere with one another and have no resistance of their own.
Each is well illustrated with examples of technical diagrams similar to those the student will see in each discipline. Does your curriculum require additional topics not included in this textbook? Preview a Chapter. Topics: Using schematics; Electrical, pneumatic, hydraulic, and piping schematics; Looking for flow; Electrical current; Fluid flow. Learning Objectives: State the definition of a schematic.