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一台孔雀 Q47—39型彩电,加装了华龙 YS608AV/TV 转换模板,原电路板上用的是四模拟电子开关D4053BC(NEC 852887)作 AV/TV 信号转换,其相关引脚在电路中的实际用法如图1所示(与配带的原理
A peacock Q47-39 type TV, the installation of Hualong YS608AV / TV conversion template, the original circuit board is used four analog electronic switch D4053BC (NEC 852887) for AV / TV signal conversion, the relevant pin in the circuit The actual usage shown in Figure 1 (and with the principle