收到故障机一用户送来的苏泊尔C21-SDHCB15电磁炉,故障表现是通电无显示,也没有反应。拆开电磁炉,经查R147断路,R159、R160的阻值增大,OB2226SP损坏,SPR-EE10变压器初次级短路,依次更换这些损坏的元器件后,故障修复。 |
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