充电器插入市电220V，输出12V，用指针式万用表量电压有12V，但12V会慢慢下降到0伏。每次都是一样。
高压部分，（400V47uf）滤波电容断电，电压从660伏下降到300多伏，下降就变慢。
低压部分，绿色指示灯闪烁不停。
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充电器插入市电220V，输出12V，用指针式万用表量电压有12V，但12V会慢慢下降到0伏。每次都是一样。
高压部分，（400V47uf）滤波电容断电，电压从660伏下降到300多伏，下降就变慢。
低压部分，绿色指示灯闪烁不停。
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