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1.一般控制芯片的检测方法卫星数字电视接收机中使用了多种集成电路,接收机本身也可以说是一部电脑,它含有微处理器芯片、存储器芯片、解码芯片、系统控制芯片以及控制软件等。如果有一数字处理芯片无输出信号,并不一定是该芯片损坏。因为在微处理器控制下的处理芯片无输出信号一般有几种可能,如:没有时钟脉冲信号输入;或没有输入控制信号;或控制信号输入不正确;或软件电路出现故障;或在数据地址线路上出现问题;或相关记忆芯片
1. General control chip detection methods Satellite digital television receiver using a variety of integrated circuits, the receiver itself can also be said to be a computer, which contains the microprocessor chip, memory chips, decoders, system control chips and control Software and so on. If there is a digital processing chip output signal, not necessarily the chip is damaged. There are several possibilities for processing chips without output signals under the control of a microprocessor, such as: no clock signal input, no control signal input, incorrect control signal input or software circuit failure, or a data address Problems on the line; or related memory chips