| 摘要 |
PURPOSE:To perform more secure maintenance than when a service control card is used and easily totalize information by storing history information in a storage part provided in the device. CONSTITUTION:When history information is inputted in case of a fault, a main switch is turned off and the main switch is turned on again while ''2'' and ''5'' of a ten-key 6 are pushed, so that the device enters a history mode. An input mode for one of a date, component number, trouble code is selected with the ten-key 6 to input data, and a copy key is pushed to let a central processor CPU1 know that the data input in the mode is completed. Thus, the input data is stored in a specific address of nonvolatile RAM2 equipped with a backup power source. The history information stored in the central processor CPU1 is printed out by a centralized controller 8 through a data outut 7. |
