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1 故障现象在有线电视网络中,曾出现过机房供给主放大器及干线放大器的ＰＳ6Ａ电源供给器自动告警,但前端主放大器及干线系统还能正常运行的不正常现象。2 故障处理在排除该故障过程中,从查找ＰＳ6Ａ电源供给器自动告警原因入手。首先检查ＰＳ6Ａ电源供给器是否出现故障,将供
1 Symptom In the CATV network, PS6A power supply of the main amplifier and mains amplifier in the equipment room has been automatically alarmed. However, the abnormality of the mains amplifier and the mains system in the front end can be abnormal. 2 Troubleshooting To troubleshoot the fault, start by looking for the cause of the automatic alarm of the PS6A power supply. First check if the PS6A power supply is faulty and will supply