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高路华TC—2528、TC2818彩电的CPU采用M34300N4—721SP芯片。整机除了传统彩电使用的保护方式外,还使用了CPU监控保护电路,对意外损害进行监控。一且被监控电路发生故障,CPU即发出关机指令,使主电源停止工作,起到保护机器的作用。同时,由于CPU的监控点多达10个,任何一路发生故障后,都会使主电源处于关机状态。如果对CPU监控电路不熟悉,往往会认为主电源不能正常开机。这时若
High Road, China TC-2528, TC2818 color TV CPU using M34300N4-721SP chip. In addition to the traditional use of color TV protection methods, but also the use of CPU monitoring and protection circuit to monitor the accidental damage. Once the circuit being monitored is out of order, the CPU issues a shutdown command to stop the main power supply and protect the machine. At the same time, as the CPU monitoring point up to 10, any way after the failure, will make the main power is off. If you are not familiar with the CPU monitoring circuit, often think that the main power can not be normal boot. If this time