In addition to our PCB Engineering capabilities we also provide a service to reproduce PCB artworks for old or obsolete printed circuit boards where the original is no longer available. This technique involves scanning the printed circuit board and accurately recreating the track work, component idents, resists and NC drilling information in our VCAM software. The customer can then order replacement printed circuit boards as required.
What is process of Multilayer PCB reverse engineering?
- Assign reference designations to unmarked components before starting PCB reverse engineering.
- Create a Component level BOM.
- Design -Identify the system’s components and their interrelationships.
- Components Placement & Mechanical.
- XY locations of Connectors, LED, Switches etc.
- Board mechanical Mounting holes & any special cuts on Boards, Board size etc.
- Download datasheets, application notes, and architecture information.
- Create net list.
- Make the Schematic Drawing and PCB Layout.
What are the applications of multilayer PCB reverse engineer?
- Circuit extraction and reverse engineering of obsolete parts
- Identifying patent infringement
- Building a “known parts” database for counterfeit screening
- Gathering competitive intelligence in preparation for new product launches
What are the considerations during multilayer PCB reverse engineer?
Becoming a PCB reverse engineer isn’t necessarily simple. But there are three main steps you need to take to achieve a functioning PCB without documentation or support.
Reverse Bound Constructing
To begin, you need accurate—and well-lit—images of both sides of your PCB. With these two images, you can create a layout for developing a schematic. With a basic board, you can use graph paper to draw the layout. Use symbols for each component and work carefully to capture the proper scale.
For more complex PCBs, using pencil and paper quickly becomes confusing. However, if you can create a line drawing for a relatively detailed PCB, you can skip image editing and color switching and go straight to preparing a schematic.
Using photographs is time-consuming, but it’s a necessary step for more complex layouts. Good lighting and a quality camera (whether digital or smart phone) will help make the process easier. You need a photograph of both sides of the PCB to begin.