| 摘要 |
PURPOSE:To simplify an operation by providing a changeover switch in which a common contact is connected to a switching signal terminal, the first contact is connected to the first and the second input terminals and the second contact is connected to the third input terminal and a delay circuit disposed between the first contact and the second input terminal. CONSTITUTION:At the time t1, the common contacts 5c, 5c' of the changeover switch 5 are changed over and connected to the first contacts 5a, 5a'. Then, at the time t1, the first contacts 5a, 5a' respectively are led to H as shown in the figures (a), (b). According to the leading of the first contact 5a to the H, the input terminal 1a of an LSI1 is led to H at the time t1 as shown in the figure (f) and the LSI1 goes to a recording standby mode. Thus, according to the leading of the first contact 5a' to the H, the input terminal 1b of the LSI1 temporarily is trailed to L at the time t1 as shown in the figure (g), thereafter, the input terminal 1b of the LSI1 is led to H at the time 2 after the elapse of the time determined by the time constant of the serial circuit 9 of the delay circuit 14 from the time t1 and the LSI1 goes to a recording mode to start the recording. |
