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差转机电源故障检修实例李竹松（云南省嵩明县广播站６５１７００）机型浙江淳安无线电厂ＤＣＨ－５０Ｎ型５０Ｗ电视差转机故障现象；输出功率有时突然变小。检修程序：该机工作Ｚｈ后输出指示变小，机器面板输出指示由正常时的５０下降为３０；左功放输出指示正常，为２...
Difference turn power failure troubleshooting examples Li Tusong (Yunnan Songming County Broadcasting Station 651700) Model Zhejiang Chunan Radio Factory DCH-50N 50W TV Difference Machine Fault phenomenon; output power suddenly decreases. Maintenance procedures: the machine work Zh after the output instructions become smaller, the machine panel output instructions from 50 to 30 when normal; left amplifier output indicates normal, 2 ...