| 摘要 |
PURPOSE:To change automatically the connection of an equipment, to supply and receive a test signal and to decide whether the equipment is normal or not, by substituting a unit to be tested with the same incorporated unit in an interface circuit to constitute a system and using a controller to input automatically the test signal and reproducing the test signal. CONSTITUTION:A test signal generator 15 is connected to an incorporated unit A12 through an interface circuit 21 by a controller 18 in respect to check items, and a signal is taken out from the output terminal of a unit 22 to be tested through the interface circuit 21, and the level, the frequency, etc. of this signal are detected by a test signal detector 16, and results are inputted to the controller 18 through the interface circuit 21. These results are read by the controller 18, and it is checked whether they coincide with preliminarily set level, frequency, etc. or not. The controller 18 outputs check results to a display device 19 or a data recorder 20. |
