| 摘要 |
PURPOSE:To perform a trial test with high efficiency for a control board, by providing signals which are fed to and delivered from the control board into input and output signals and at the same time giving a level conversion and a series-parallel conversion to the voltage of the divided input and output signals. CONSTITUTION:The contact signal delivered from a subject control board 1 is fed to a programming device 6 through a prefabricated cable 5 and then fed to a power input substrate 8 via a short circuit pin and through an interconnection cable 7. Here the level of voltage is dropped down to a logic level to be added with other inputs connected in parallel to each other and then fed in a parallel form to the corresponding address of a trial test device 30 which has been programmed previously through an extended cable 10. As a result, an output signal of the corresponding address is produced and receives a conversion of voltage level as well as a series-parallel conversion which are totally opposite to the input signal through the cable 10 and by a power output substrate. |
