铁皮壳,拿在手里有点沉
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参数及接线方式
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这个接线孔跟飞利浦的相比有个缺点,插进去后不容易拔出来
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还没过保,但因为是进水烧的,那就算了,质保指望不上了
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拆开有明显的进水锈渍,干净的那个被我擦过了
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锈渍很明显
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抽出PCB,元件挺多,而且挺工整,符合正规货的感觉
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PCB背面有烧灼的痕迹
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锈渍和烧灼痕迹
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这个PCB上没有保险管,走了两个蛇形线算是保险了
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13003的开关管,测了下居然没烧掉,正好能拆下来派上用处
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6800pf的CBB电容,PCB上有3个
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这个管子没去查有啥用途,不晓得在13003外还要啥
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EMI共模电感,一般在正儿八经的产品上都会有,不然肯定过不了认证,山寨货上必省
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高频变压器吧
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那个锈渍最明显的拆了,把能用的元件都拆了下来,备用,另一个可以考虑修修看,还是有希望修好的,不过3灯管的灯盘在家里似乎没啥用处
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手头的坏了好久的吸顶灯电子镇流器,检测后发现烧了13002开关管,CBB谐振电容可能也挂了,考虑到单独买两个13002及CBB电容不值得,所以一直就丢那了
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常规山寨做工,少个元件即不能工作,多个元件即有失山寨本色
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换上拆下的13003和6800pf CBB就修好了
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换下的CBB外观看倒也没啥,没有击穿,没有裂痕,估计是内部断线掉容量了,因为当初最早的故障是灯管不容易启动,后来才是烧了开关管
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Over~~~~~