卫星信号卫星信号切换开关有卖

将四切一与接收机接好，打开电视机调整到卫星参数修改界面，用遥控器分别将四切一设置成1，2，3，4，此时用万用表分别测试4个端口的电压是否正常，一般四切一正常的情况下随着遥控器的选择，各端口会对应的输出电压。经过检查，两个四切一，一个S3端口坏，另一个S2,S4端口坏，故障现象为坏端口的输出电压不随设置变化，始终都有电压输出，初步判断驱动器件短路。

Product model:GSM - 2201

Product name: two into two out of the multi-channel switch

Material quality: zinc alloy die casting

Interface: - 5 inch F head

Product features:

Zinc alloy die casting shell, nickel plating surface treatment

High quality components, circuit design, small loss

Coaxial cable of the receiver output 13/18 v voltage by the toggle switch to switch to the corresponding port

Can step in two LuWeiXing television **s at the same time, through 13/18 v switch all the way

Can points two users at the same time, each other

Suitable for more star machine use

较大通过电流：13/18V

连接头：F型英制