The design of schematic diagram should use SCHEMATIC DIAGRAM design system of PROTEL98 or PROTEL99SE to draw a schematic diagram, it is the foundation of circuit board design project. During this process, designer should take advantage of all kinds of drawing tools and edit functions provided by software, the process is see below:

1. Start-up: open up PROTEL98 schematic diagram editor:

Click “Start” bottom, and choose PROTEL98 inthe “Program”.

2. Install circuit drawing dimension and layout

User can install the dimension, orientation and grid size of drawing and title.

3. Place necessary components on the schematic diagram

User select the necessary components from database and place them onto the right place according to circuit schematic diagram requirement, as well as modification.

4. Layout the components which have been placed

Use line and signal to connect all the components on platform to constitute a complete schematic diagram

5. Modify components after PCB layout

In order to ensure the schematic diagram’s preciseness and aesthetic, components location need to be modify through delete, move and adjust drawing size, feature and orientation.

6. Save file and print output

Save schematic diagram which has been edited and print it out for file.

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