Less mess? I've got enough information in each these diagrams to know precisely what this circuit does and also where to search for issues. Hope this helps. ( Note: don't confuse lecture or circuit diagrams with wiring diagrams; wiring diagrams will typically show images of elements such as the pictorial, and the way the whole or part of a circuit will be wired. The distinction is that wiring diagrams typically place an emphasis on actual physical location of necessary elements relative to each other that basically tell a layman Just What to do about the wiring. )
A schematic diagram refers to a particular kind of circuit design which utilizes standard electrical/electronic symbols rather than images to show the way the circuit (or part of it) works. Below is a typical 3-wire motor control circuit utilizing a standard short stop halt - start pushbutton channel employing a schematic diagram. (Momentary this means that the button/switch you trigger will go back to its default location once you let go of this, typically by a spring which forces the button/switch to get this done.)
Pictorial schematic diagrams, or pictorial circuit diagrams are basically the exact identical thing with exactly the exact identical purpose, but they use pictures of components inside the circuit rather than symbols. Again, here's the same specific circuit (almost except a control transformer was inserted and they are using conductors L1 and L3 instead of L1 and L2.
Think of it in this way; a circuit structure is any sort of diagram that demonstrates how a circuit operates where the most important objective is that the appropriate wiring of components and their connection to each other rather than physical place relative to one another or planning prototypes. However, in some applications classifying diagrams can be difficult so accept this as overall information. I've found this is especially true when working with much more complicated circuits and electronic equipment. I'm going to work with a simpler but average industrial circuit since these circuit setups are exactly the same, but nevertheless where you're able to observe how each type of diagram shows the purpose of the circuit in their own ways.
Here is another schematic diagram showing precisely the same circuit, connections and components and it appears different but they fall into the same category.
Here is a technical version of a diagram known as a ladder design. The main purpose of this diagram is to show the logic (speaking to electrical management ) of a circuit board. This really is the one I mostly come across in my line of work, and it is extremely successful for troubleshooting problems or learning how a circuit functions. Some circuits are so huge that many types of schematic diagrams have to be read in increments from book form (usually with coded numbers so that information can be easier located ). Again, here's the exact identical precise circuit since the first two, but looking at it in ladder shape.