KR950013344A

KR950013344A - Printed Circuit Board Inspection Paper Control Method

Info

Publication number: KR950013344A
Application number: KR1019930021769A
Authority: KR
Inventors: 윤승원
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1993-10-20
Filing date: 1993-10-20
Publication date: 1995-05-17

Abstract

본 발명은 소자가 삽입된 인쇄회로기판(PCB : Print Circuit Board)의 출력 하드웨어의 불량여부를 신속하게 검사할 수 있도록한 인쇄회로기판 검사용지그의 제어방법에 관한 것으로, 키입력회로의 시작스위치의 키입력을 검출하는 단계와, 상기 시작스위치 키입력 검출시 피검사용 마이컴의 리세트 포트로 로우신호를 인가하는 단계와, 상기 피검사용마이컴의 구동회로 출력포트로 소정출력을 행하는 단계와, 소정 시간의 경과후 입력회로를 통해 입력되는 신호를 검출하는 단계와, 상기 입력 회로의 입력결과 정상신호가 입력되면 표시회로로 해당 LED를 점등하고, 정상 신호가 아닐 경우에는 소등신호를 출력하는 단계를 구비하여서 된 것이다.The present invention relates to a method of controlling a printed circuit board inspection jig for quickly inspecting whether an output hardware of a printed circuit board (PCB) into which an element is inserted is defective. Detecting a key input, applying a low signal to the reset port of the microcomputer to be tested when the start switch key input is detected, performing a predetermined output to a drive circuit output port of the microcomputer to be inspected, and for a predetermined time Detecting a signal input through the input circuit after the elapsed time, and lighting a corresponding LED when the normal signal is input as a result of the input circuit, and outputting an unlit signal when the signal is not normal. It was done.

Description

Printed Circuit Board Inspection Paper Control Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명이 적용되는 지그의 개략적인 회로도,1 is a schematic circuit diagram of a jig to which the present invention is applied;

제2도는 본 발명에 의한 제어 동작 플로우 챠트.2 is a control operation flowchart according to the present invention.

Claims

The output of the test microcomputer is connected to the reset port of the microcomputer to be inspected through the inverter, and another output of the microcomputer is connected to the drive circuit output port of the microcomputer to be inspected, and the individual test of each driving load such as the start of the test is performed. A key input circuit for performing a predetermined key input to enable a predetermined key, a display circuit for indicating the state of the PCB output circuit to be inspected by LED lighting, and a driving load connected to both ends of the test load of the PCB to be inspected to operate the driving load. A control method of a PCB inspection jig provided with an input circuit for detecting the operation of an output circuit, the method comprising: detecting a key input of a start switch of the key input circuit; Applying a low signal to a reset port, performing a predetermined output to a drive circuit output port of the microcomputer for inspection; Detecting a signal input through an input circuit after a lapse of a predetermined time, and lighting a corresponding LED when the normal signal is input as an input result of the input circuit, and outputting an unlit signal when the signal is not normal. Control method of a printed circuit board inspection jig characterized in that it comprises a.

※ Note: The disclosure is based on the initial application.