收到同行送来的故障机壹台康佳LED43K1000A液晶电视，故障表现为不通电，此机为35023310三合一板，开盖检测电源电路4A保险熔断，CW912 101烧爆，电源调整管击穿，型号K6A65D，对电源电路原件逐一进行排查发现VDW908击穿，查资料得知稳压值6.8V。电源集成块8671A。网购K6A65D 8671A（为了万无一失换新）元件，6.8V稳压管在老式彩电上拆得。电源次级没有发现坏件。换好所坏的元件，检查无误，开机正常收看。至此故障修复。   |
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