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三洋８３Ｐ机芯电源故障检修曹虎成故障现象电源故障引起输出电压升高。分析检修三洋８３Ｐ机芯采用自激非饱和调宽型开关电源，没有设置任何保护电路。电源引起的输出电压升高对负载电路的影响很大。维修时一定要断开负载电路，并在ＢＩ输出端接入假负载。８３Ｐ机芯开关...
Sanyo 83P power supply failure repair Cao Hucheng failure phenomenon caused by power failure output voltage increases. Analysis and maintenance Sanyo 83P movement using self-excited non-saturation widened switching power supply, did not set any protection circuit. The increase of the output voltage caused by the power supply has a great influence on the load circuit. Be sure to disconnect the load circuit during service and connect the dummy load to the BI output. 83P movement switch ...