Logic Gate Circuit Diagram - We have a new glossary in development. While the new glossary is being developed and tested, this legacy glossary is still in use. Glossary —A collection of words with their meanings. This glossary has key terminology in use in PCB design and manufacturing, with rudimentary electronics.. Electronic Circuit Schematics. Note that all these links are external and we cannot provide support on the circuits or offer any guarantees to their accuracy.. 1b. Before Beginning: Should you attempt Printed Circuit Board (PCB) repair? Soldering coils and switches is one thing. But fixing printed circuit boards is a whole other thing!.