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故障现象:冷机或第1次开机无蓝底。故障原因:此故障是因该机系统RC复位电路时序不稳定,导致对解压芯片NDV8501复位不良造成。排除方法:将系统复位电路由原来的RC复位电路改用IC复位电路。改进前RC复位电路见图1所示。改
Symptoms: cold or the first boot no blue. Fault reason: This fault is due to machine system RC reset circuit timing instability, resulting in decompression chip NDV8501 reset caused by poor. Remedy: The system reset circuit from the original RC reset circuit to IC reset circuit. Before improving the RC reset circuit shown in Figure 1. change