收到同行送来的故障机壹台海信LED46K310X3D液晶电视,其电源板RSAG7.820.4933/ROH ,开机一直蓝灯黑屏,按键和遥控均无效,拆机测量电源板仅有待机电压5V,查电路后更换N893和N871(NCP1396),故障机修到这里,终于修好值得探讨。,开机正常。 |
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