The process of copy board

1. Preparation work

Prepare the required tools and equipment, such as high-precision scanners, image processing software, PCB design software, magnifying glasses, etc.

2. Obtain the original PCB board

Carefully disassemble the original device and remove the PCB board.Check whether the PCB board is damaged, deformed or stained. If so, it may affect the accuracy of the copy.

3. Scan the PCB board

Place the PCB board flatly on the scanner, making sure it completely covers the scanning area.

Choose an appropriate scan resolution, typically higher resolutions provide sharper images but also increase processing time and file size.

4.image processing

Import image processing software obtained by scanning, such as Adobe Photoshop, etc. Adjust the parameters of the brightness, contrast, and color balance of the image to make the outline of the line and components more distinguished.

5.layer map separation

If it is a multi -layer PCB board, according to the number of layers and characteristics of the PCB board, scanning images are used to separate the scanning image into each separate layer. For each layer of images, separate processing and optimization to improve the recognition of lines and components.

6. Line extraction

Use professional PCB copy software, such as Protel, Altium Designer, etc., and introduce the processed maps.Through the automatic or manual line extraction function of the software, the path of the line is depicted along the direction of the line. Check whether the extraction line is accurate. If there is a deviation, enter in time Ring correction.

7. component identification

With the help of a magnifying glass or microscope, carefully observe the parts on the PCB board Piece identification and model. Use the component database or online query tool to determine the component. Specifications, parameters and functions. The symbols and values of components are correctly marked in the schematic diagram.

8. Principles drawing

Based on the results of line extraction and component recognition, drawing the schematic diagram in PCB design software. Connect the component according to the logic relationship of the circuit to ensure the schematic diagram.Accuracy and integrity. Check and optimize the schematic diagram to remove redundant circuits and components to make the circuit structure clearer and simpler.

9.PCB design

After the drawing is completed, the PCB layout and wiring are performed according to actual needs and design specifications. Arrange the position of the component reasonably to make the line short and straight, reducing signal interference and delay. Set the number of layers, pores, line width and other parameters of the PCB board to satisfy.Performance and manufacturing requirements.

10. board

Send the designed PCB file to a professional PCB board manufacturer. Communicate the process requirements, materials selection and delivery time of the manufacturer.

11. Test and verification

After receiving the production PCB board, welding and assembly. Use test instruments, such as oscilloscope, logic analyzer, etc., perform functional testing and performance detection of PCB boards.Compared with the original PCB board to verify the accuracy and reliability of the copy plate.