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遥控器的故障现象大致有两种,一、部分按键操作不起作用。二、全部按键操作不起作用。对于第一种,多数都是按键与触点的接触面导电率下降所致,只要在按键的接触面上贴一小块烟盒上的锡箔纸就行了(不排除某键线路有断路的可能)。对于第二种,确认了接收系统无故障后,修理遥控器,把判断晶振是否振荡作为一个突破口。打开遥控器后盖,取出电路板,注意观察电路板及晶振的两脚是否断裂,如正常,就给电路板外加上电源(这样做,是为了操作方便),用万用表黑表笔接电源负极,红
There are two kinds of remote control failure phenomenon, one part of the key operation does not work. Second, all the key operation does not work. For the first one, most of them are caused by the decrease of the electrical conductivity of the contact surface of the key and the contact, as long as a small piece of tinfoil on the contact surface of the key is pressed ). For the second one, after confirming that the receiving system has no trouble, repair the remote controller and judge whether the crystal oscillator is oscillating as a breach. Open the remote control back cover, remove the circuit board, observe the circuit board and crystal legs are broken, as normal, give the circuit board plus power (doing so, is easy to operate), with a multimeter black pen then negative power supply, red