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Elecric vehicle tester

阅读:618发布:2022-07-13

专利汇可以提供Elecric vehicle tester专利检索,专利查询,专利分析的服务。并且PURPOSE: To detect the position of defects, by covering over a logic printed board a mask corresponding to the kind of defects of vehicle and by checking the circuits on a flow chart in accordance with the light-on/off indication of luminescent diodes provided at check points on the mask.
CONSTITUTION: When the vehicle does not work, the mask 41 is taken out from a mask file. Overlapping the mask on another mask on the logic printed board 21, only the light-on/off indication of the luminescent diodes ED1, ED4WED6 can be seen through the mask 41. Namely, the diodes ED1, ED4WED6 are all lighted on. If a luminescent diode is found lighted off when a full line on the flow chart is traced from DSF, a dotted line is thereafter traced. As a result, a printed circuit board S could be found defective.
COPYRIGHT: (C)1979,JPO&Japio,下面是Elecric vehicle tester专利的具体信息内容。

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