收到同行送来的故障机壹台美的C20-SK2002电磁炉,故障表现为间断加热,经测总电流由2A到9A波动,加热1秒一停,最后查得可调电阻旁边贴片R2变值,更换同阻值4700后,一切正常,交付给客户使用。 |
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