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采用各种CPU的彩电,虽然线路各不相同,但笔者认为,只要通过现象进行分析,同样可以按照一般彩电的检修方法进行,但关键是首先要判断CPU工作是否正常。一般情况下,只要通过面板或遥控操作就可知CPU是否正常,在操作过程中,如有一个操作功能正常的话,那么CPU故障的可能性极小,要重点检查其接口电路或信号处理电路,如CPU没有一个操作功能正常的话,说明CPU工作失常或损坏。那么如何确定CPU的好坏或工作失常呢?大家知道作为一个单片微机系统,它工作需要的最基本条件是稳定可靠的工作
The use of a variety of CPU color TV, although the lines are different, but I believe that as long as the phenomenon through the analysis, the same color TV repair methods can be the same, but the key is to first determine whether the CPU work is normal. Under normal circumstances, as long as the panel or remote control operation can know whether the CPU is normal during operation, if an operation is normal, then the possibility of CPU failure is minimal, we should focus on checking the interface circuit or signal processing circuit, such as CPU does not have a normal operation of the function, then the CPU work is not working or damaged. So how to determine the CPU is good or bad work? We all know as a single-chip microcomputer system, it needs the most basic condition is stable and reliable work