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报警器外壳一般是因为pcb
报警器外壳一般是因为pcb线路板上实施某些作用的功能键处的叉指接触点或导线间有短路或短路故障而致。可冲洗pcb线路板和导电胶接触点
一试。如无法故障检测，可查验场效应管实行某些作用的键操纵键入、輸出端导线是否有断路或短路状况。所有
失效，是因错手摔碎或是无原因毁坏。对某些功能键失灵的解决较简易，多见接触不良现象，可打开遥控器机壳，将其
不灵敏的功能键的导电胶接触点和相对应的包装印刷板位置用酒精棉球清理整洁，
The alarm shell is generally caused by short circuit or short circuit fault between interdigital contact points or wires at the function keys that perform some functions on the PCB circuit board. The contact point between PCB circuit board and conductive adhesive can be washed for a try. If the fault cannot be detected, check whether there is open circuit or short circuit in the key manipulation input and output terminal of the FET. All failures are broken by wrong hands or damaged for no reason. It can be used to clean the poor contact between the remote control key and the printing plate, which is relatively sensitive to the poor contact between the alcohol key and the printing plate,
晾晒后如仍不灵敏，可拆换导电胶或用香 烟锡箔纸粘于导电性接触点上去替代。假如情况是包装印刷板接触点触碰位置导电膜损坏，可以用∮０．４ｍｍ上下裸铜线沿 导线布线，将其一端焊在与导电膜相接的点焊上去做替代，随后再视情形用５０２瞬间胶将细铜线黏贴于原导电性 膜上。针对错手摔碎的状况，一般多见晶振电路內部芯片被震破，只需换掉同頻率晶振电路就可以。
If it is still not sensitive after drying, the conductive adhesive can be removed or replaced by sticking cigarette tin foil paper to the conductive contact point. If the situation is that the conductive film at the contact point of the packaging printing board is damaged, you can use ∮ 0.4mm up and down bare copper wire to route along the conductor, weld one end to the spot welding connected with the conductive film as a substitute, and then stick the thin copper wire to the original conductive film with 502 instant glue according to the situation. In view of the situation of broken by wrong hand, it is generally common for the chip in the crystal oscillator circuit to be broken. Just replace the crystal oscillator circuit with the same frequency.
The alarm shell is generally caused by short circuit or short circuit fault between interdigital contact points or wires at the function keys that perform some functions on the PCB circuit board. The contact point between PCB circuit board and conductive adhesive can be washed for a try. If the fault cannot be detected, check whether there is open circuit or short circuit in the key manipulation input and output terminal of the FET. All failures are broken by wrong hands or damaged for no reason. It can be used to clean the poor contact between the remote control key and the printing plate, which is relatively sensitive to the poor contact between the alcohol key and the printing plate,
晾晒后如仍不灵敏，可拆换导电胶或用香 烟锡箔纸粘于导电性接触点上去替代。假如情况是包装印刷板接触点触碰位置导电膜损坏，可以用∮０．４ｍｍ上下裸铜线沿 导线布线，将其一端焊在与导电膜相接的点焊上去做替代，随后再视情形用５０２瞬间胶将细铜线黏贴于原导电性 膜上。针对错手摔碎的状况，一般多见晶振电路內部芯片被震破，只需换掉同頻率晶振电路就可以。
If it is still not sensitive after drying, the conductive adhesive can be removed or replaced by sticking cigarette tin foil paper to the conductive contact point. If the situation is that the conductive film at the contact point of the packaging printing board is damaged, you can use ∮ 0.4mm up and down bare copper wire to route along the conductor, weld one end to the spot welding connected with the conductive film as a substitute, and then stick the thin copper wire to the original conductive film with 502 instant glue according to the situation. In view of the situation of broken by wrong hand, it is generally common for the chip in the crystal oscillator circuit to be broken. Just replace the crystal oscillator circuit with the same frequency.
