why are schematic circuit diagrams used rather than pictorial circuit diagrams?

Question

why are schematic circuit diagrams used rather than pictorial circuit diagrams?

Answer 1

Schematic Circuit Diagram

Answer 2

There are plain circuit boards that can be customized. Its a plain board with copper on one side. With it, you can use a masking tape lining the circuit according to the schematic. Cut the masking tape to the desired width. Then use a ferric acid solution, soak the board for a few minutes. The uncovered part will be removed. And you will end up with a circuit. Drill holes for wathever components you will add. You can then solder the components on the circuit. Note on ferric acid: use plastic container only to pour on!!! Be very careful, avoid contact with any part of the body. Another option is a pre-drilled circuit board. The holes are lined up in a grid and will have copper sorrounding the holes. To complete the circuit, you can use copper wires (insulated to avoid short) to bridge other components. I would go with the second option - inexpensive, the first one is a lot of hassle and dangerous and may not turn out as well as you wanted. I don't know how much you know about the symbols, but at least learn the basics of the components. The schematic looks pretty simple and basic. Pick up a book. I can tell already that you need 24 resistors with different ohms, some switches a couple of batteries etc. The white board is the circuit board. You don't need to have the exact same thing, as long as the flow is the same, the result is the same.

Answer 3

A schematic diagram is arranged to show the flow of signal through the device, usually with the input at the left and the output at the right.



The pictorial circuit diagram does not contribute this understanding unless the circuit is very very simple. It does show where the components are placed which is helpful to find them once you know which one you are looking for.

Answer 4

a SCHEMATIC tells you how the parts function. and how they are connected to each other.

A PICTURE only tells you what the parts look like

Answer 5

A diagram represents a standard that should be known to everyone everyone at a glance. Using pictures would presume an actual brand of product, often well before one is selected.

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And actual layout of the circuit showing where the chips will go and how the connections run is often the last thing done as complication of manufacture of multi layer boards and required ground planes and separation of various signal levels are worked out - settling things with pictures would be too early.

Answer 6

Schematic diagrams are more useful for understanding how the circuitry works. Pictorial diagrams are more useful for putting them into place. For example, if you only had a pictorial diagram of the circuits in a car, you would not know much about how to diagnose any electrical problems. If you only had the schematic diagram, you would know the logic of the wiring, but you might not be able to find it in a modern automobile.

Answer 7

Pictorial diagrams do serve a useful purpose but they only show the physical location of the components in a circuit. They normally do not show where the terminals of a component are connected in a circuit. Pictorials are used to locate and identify different components or test points in a circuit.



Schematic diagrams show exactly how all of the components and circuits are interconnected including all the circuits on the printed circuit boards. In a finished product schematics are used mostly for testing and trouble shooting. Schematics are also used in conjunction with lab instructions in training facilities.



If you were building a duplicate of an electronic device you would consult a pictorial to find out where to physically locate the components and a schematic to determine the proper electrical connections between the components.



Of course all components in a finished product have identity labels that are the same on the pictorial, the schematic and the parts list.