| 摘要 |
PURPOSE:To change a control sequence without changing the hardware by use of a small-sized equipment, by discriminating a kind of a signal conversion panel of each channel by a common part, and controlling in common various signal conversion panels mounted to each channel, by the common part. CONSTITUTION:A common part 512 stores a signal sent out from a pattern generating circuit at every channel, in an RAM, and discriminates a kind of a signal conversion panel mounted to a channel in accordance with a pattern signal stored at every channel in a microprocessing device MPU. On the other hand, in an ROM, a control program for each kind of the signal conversion panel is stored, the control program of the signal conversion panel concerned is executed, various signal conversion panels are controlled in common by the common part, and a data obtained by a shift register SR2 is sent out to a sound multiple device 52. |
