Printed circuit board failure determination method, and printed circuit board failure determination system

摘要

PROBLEM TO BE SOLVED: To provide a printed board failure determination method, capable of efficiently determining the occurrence region of a failure and specification of a failure state by a low-cost system, in various electronic devices having a plurality of printed boards.;SOLUTION: Each signal corresponding to the operation of a designated printed board is input, the total amount of power supply currents supplied to all printed boards every time these signals are input is measured in time series, a time series pattern of the measured power supply current total amount and a previously stored time series pattern of the power supply current total amount corresponding to the normal condition of the printed board every time the respective signals are input are collated with each other in each signal, and according to the collation result, a failure of the printed board is determined.;COPYRIGHT: (C)2003,JPO