Wiring direction: The layout direction of the components should be as consistent as possible with the schematic diagram. The wiring direction preferably coincides with the wiring direction of the circuit diagram. It is often necessary to perform various parameters on the welding surface during the production process.
2. The arrangement of components should be reasonable and even, and strive to be neat and beautiful.
3. Resistor, diode placement: flat and vertical:
(1) Flat release: When the number of circuit components is small, and the size of the circuit board is large, it is usually flat.
(2) Vertical: When the number of circuit components is large and the size of the circuit board is not large, it is generally vertical, and the distance between the two pads is generally 1 to 210 inches.
4. The principle of placing potentiometers and IC sockets:
(1) Potentiometer: When designing the potentiometer, the current should be increased when the clockwise adjustment is full. The potentiometer should be placed in the overall structure and panel layout requirements, and should be at the edge of the board as much as possible, and the handle should be turned outward.
(2) IC seat: When using the IC seat, special attention should be paid to whether the orientation of the positioning groove on the IC seat is correct, and whether the IC pins are correct.
5. Arrangements for entering and leaving the terminal:
(1) The two related lead ends should not be too large, generally about 2 to 310 inches.
(2) The inlet and outlet should be concentrated on the 1 to 2 side as much as possible, not too discrete.
6. When designing the wiring diagram, pay attention to the order of pins and the spacing of components should be reasonable.
7. On the premise of ensuring the performance of the circuit, the design should be reasonable, the external wiring should be used less, and the wires should be wired as required.
8. When designing the wiring diagram, minimize the traces and keep the lines as simple and clear as possible.
9. The width of the terminal strip and the spacing of the lines should be moderate. The spacing between the two pads of the capacitor should be as close as possible to the spacing of the capacitor leads.
10. Design should be done in a certain order, eg, from left to right, from top to bottom.
