录音专用电路板。CPU采用89S51，由 两位静态数码管显示十六进制数据，还据有选择录音起始位，清除上一次录音 等功能。非常适用于分段放音电路的前期录音与调试。下面就是录音板的电路 图及源程序（汇编），供大家参考： -Recording dedicated circuit board. CPU uses 89S51, by two hexadecimal LED display static data, but also have a choice, according to t