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松下彩电“三无”系常见故障,该故障的发生与遥控电源、开关电源、行输出电路及遥控电路这四部分电路中某一部分电路的工作异常有关。而电源指示灯(发光二极管)的发光变化又是受遥控电源、开关电源、行输出电路及遥控电路等工作状态控制的,这四部分电路是否工作正常,指示灯发光变化均有所不同。如果了解电源指示灯的发光原理,就可
Matsushita TV “three no” Department of common faults, the occurrence of the fault with the remote power supply, switching power supply, the output circuit and the remote control circuit of the four parts of the circuit in a part of the abnormal work of the circuit. The power light (light-emitting diode) changes in the luminescence by the remote control power, switching power supply, the output circuit and the remote control circuit and other working state control, the four part of the circuit is working properly, the indicator light changes are different. If you know the power light on the principle of light, you can