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新科HD7V-420液晶彩电,电源采用L6561D+203D6+4310AM+KA7500B方案电源电路,由三部分组成:一是以驱动电路L6561D为核心组成的PFC有源功率因数校正电路;二是以驱动电路203D6和4310AM为核心组
The new HD7V-420 LCD color TV, power supply using L6561D +203 D6 +4310AM + KA7500B program power circuit consists of three parts: one is to drive the circuit L6561D as the core of the PFC active power factor correction circuit; the second is to drive the circuit 203D6 and 4310AM as the core group