To make a device compact, to eliminate the connection error by a maintenance person and to reduce the total number of testing devices to be loaded when connecting a printed circuit board package and testing devices to be loaded on a back wiring board.
A reception part receives a test request signal from an external controller and corresponding to the test request signal, a selection part selects any one of plural testing devices 300a-300m connected to an adapter connector CAN and connects it to printed circuit board packages 212a-212n. It is preferable that a connector for group connects plural back wiring boards 213 and any one of testing devices 300a-300m is selected and connected only to the printed wiring board connected to one back wiring board 213 in that board group by the above selection part.
| JPS61255600 | MEMORY CIRCUIT |
| JPS63148177 | CONSTITUTING METHOD FOR SCAN REGISTER |
| JP3003587 | INDIVIDUAL TEST PROGRAM GENERATION SYSTEM |
KOBAYASHI TOSHIJI
HAMANAKA NAOTO
MARUYAMA KAZUYOSHI
TANAKA MASAHIRO
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