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12-T240U1型(日本三洋牌)12英寸黑白电视机共用五块集成电路、十一只晶体三极管和十六只晶体二极管.它是能接收VHF频道和UHF频道的全频道电视机.其图象中频为37兆赫,伴音中频为30.5兆赫,音频输出700毫瓦,消耗功率29伏安.图1为12-T240U1型黑白电视机方框图.本机图象通道由μPC595C和μPC596C两块集成块组成,担负图象中
12-T240U1 (Sanyo, Japan) 12-inch black and white TV share five integrated circuits, eleven transistors and sixteen crystal diodes. It is able to receive VHF channels and UHF channels all-channel television. The image The intermediate frequency is 37 MHz, the audio intermediate frequency is 30.5 MHz, the audio output is 700 mW and the power consumption is 29 V. Figure 1 is a block diagram of a 12-T240U1-type black-and-white television set. The local image channel consists of two integrated blocks of μPC595C and μPC596C, In the image