| 摘要 |
PURPOSE:To automatically return to an initial set value by detecting and storing the saturated or zero states of plural volume adjusting means in the case of adjustment. CONSTITUTION:When adjusting a main volume adjusting means 8f, the saturated or zero states of plural volume adjusting means 8a-8e are detected by a saturated/zero state detecting means 13 and stored in a second storage area 7CD. Namely, in a CPU 6, the plus button of an M-VR8f of an operation part 8 is depressed, and the saturated/zero state detecting means 13 detects the saturation value '100' or '0' state as the maximum output value of a power amplifier group 10 or a loudspeaker group 11. Based on this detection output, the value made plus by the M-VR8f is stored in respective areas FL', C', FR', RL', and RR' of the second storage area 7CD. Therefore, even when the adjusting amount of the main volume adjusting means 8f is turned to the zero or saturated state, the initial values of the plural volume adjusting means 8a-8e independently interlocked to the main volume adjusting means 8f are not changed but increased/decreased. Thus, the trouble of initial resetting can be avoided. |
