Documentation on any electronic device it is necessary to supplement it with the schematic diagram. It has to be not only is competent and is correctly made, but also qualitatively issued. The way of its drawing up depends on your opportunities.
Instruction
1. Before drawing up any electric circuit surely get acquainted with the system of so-called conditional graphic symbols - UGO. It is necessary to know several standards on such designations used in different countries, but here it is necessary to use by drawing up own schemes a domestic system. It is possible to get acquainted with it according to the reference given at the end of article.
2. In the absence of a drawing table make out the scheme on checkered or graph paper. The ruling on such paper has to be rather pale. Having scanned the scheme, open the file in the graphic editor of MtPaint, GIMP or similar, find point allowing to adjust brightness and contrast in the menu then achieve disappearance of a ruling with simultaneous increase in contrast of the scheme.
3. If desired, impose a usual tracing-paper on checkered paper or a squared paper. Draw on it the scheme, and after its scanning it will not be required to remove a ruling.
4. Considerably to accelerate drawing of conditional graphic symbols and to improve their quality, use a so-called "Cliche of the radio engineer", for example, of SPM-73.2 brand. Consider that this cliche is compatible only to mechanical pencils, and, it is desirable to use in them cores with a diameter of 0.5 mm.
5. For drawing of schemes on the computer use that raster or vector graphic editor to whom you got used. Advantage of such decision is the lack of need of reeducation, fast, mechanical performance of all operations. In advance make library of conditional graphic symbols for the editor - it is much more convenient, than every time to draw them anew. Time spent on creation of such library then will quickly pay off at the expense of an exception of the long repeating operations.
6. If desired it is possible to combine drawing up the electric circuit with preparation of its mathematical model. After that work of the scheme can be promodelirovat at any time. Use for this purpose the MicroCAP program or similar. A lack of such decision is badly readable execution of the scheme executed besides, according to the foreign standard.
7. In whatever way you prepared electric circuits, do not forget to assign to each of elements numbers at all, to specify pin numbers of any multioutput elements. After drawing up the scheme carefully check it, and if necessary - correct. Further it considerably will facilitate installation of the device, especially if other person carries out it.