平时,在维修中遇到红外线接收头损坏均找同型号的接收头进行代换,由于电视机品牌众多,接收头也各式各样,这给代换中带来了不便。可否有一种通用型接收头呢?答案肯定,有。现在市场上流行一种万能接收头,类似于塑封三极管如图1所示。只要我们能正确判断出其引脚功能就可方便用于各种代换。判断引脚简法:“用万用表R×1kΩ档,先假定任一引脚为接地脚,黑表笔接假定地脚, Usually, in the repair encountered infrared receiver damage are looking for the same type of receiver to replace, due to the large number of TV sets, the receiver is also a wide range, which brought inconvenience to the replacement. Is there a universal receiver? The answer is yes. Now popular on the market a universal receiver, similar to the plastic transistor shown in Figure 1. As long as we can correctly determine the pin function can be easily used for a variety of substitutions. Judge the pin Jane law: "With a multimeter R × 1kΩ file, first assume that any pin is grounded, black pen connected to the assumption that the foot,