Turn on the amplifier and select the program source.
打开放大器电源，选择节目信号源。
The volume should be set to minimum before you begin playing the program source.
在开始播放节目信号源之前，必须把音量设定到最小。
VB will color bitmap into a grayscale (black and white image), with a program source.
说明：VB将彩色位图转化为灰度图（黑白图像），附带程序源码。
VB will color bitmap into a grayscale (black and white image), with a program source.
说明：VB将彩色位图转化为灰度图（黑白图像），附带程序源码。
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