论文部分内容阅读
例2机型:长虹 CJK5682型遥控彩电故障现象:”三无”,电源指示灯(待机灯)亮,按遥控器或面上的“二次开机”健,机内无任何动静《听不到继电器动作声)分析与检修:从放障现象看,故障可能是遥控电源开/关(待机)电路有问题。该机遥控电源开/关机切换电路由 CPU(M50431—101SP)(27)脚(POWER ON/OFF端)、VD006二极管和接口电路 V002以及继电器K801等组成(参见3期图27所示)
Example 2 Model: Changhong CJK5682 remote color TV Fault phenomenon: “three no”, the power indicator light (standby light) light, press the remote control or the surface of the “second boot” health, the machine without any movement "can not hear Relay action sound) Analysis and Maintenance: From the phenomenon of grading fault, the fault may be remote power supply on / off (standby) circuit problems. The machine remote power on / off switching circuit from the CPU (M50431-101SP) (27) feet (POWER ON / OFF side), VD006 diode and interface circuit V002 and relay K801 and other components (see Figure 27 Phase 3)