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先项目系统为sensor采集图像经过UB953，再经过UB954至处理器。现接上953后PASS和LOCK灯会闪（PASS、LOCK脚接LED），另外一片954是正常的，PASS和LOCK灯长亮，这是什么原因？附上原理图与PCB截图。原理图中RIN0、PCB最下面的连接器 为故障处
