Microcomputer-based testing and repairing system using digital signature mapping

Author

Refai, Mohamed Khalil

Author_Institution

Syst. & Comput. Dept., Al-Azhar Univ., Tanta, Egypt

fYear

1989

fDate

1-5 Oct. 1989

Firstpage

2314

Abstract

A novel approach called digital signature mapping (DSM) is proposed for testing and repairing loaded printed circuit boards (LPCBs). This microcomputer-based approach performs real-time measurement for LPCBs under test, particularly CNC (computer numerical control) controller boards. DSM uses the MC6809 and well-known test tools, so the proposed system is not very expensive and is very useful in testing and repairing small quantities of LBCBs. The required software, which is generated by mapping the signature of test points of a good LPCB, makes it suitable for application in a factory that uses a variety of CNC machines.<>

Keywords

automatic testing; electronic engineering computing; logic testing; microcomputer applications; printed circuit testing; CNC controller boards; DSM; LPCBs; MC6809; computer numerical control; digital signature mapping; loaded printed circuit board repair; microcomputer-based testing; real-time measurement; Application software; Circuit testing; Computer numerical control; Digital signatures; Particle measurements; Performance evaluation; Printed circuits; Production facilities; Software testing; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE

Conference_Location

San Diego, CA, USA

Type

conf

DOI

10.1109/IAS.1989.96965

Filename

96965