收到同行送来的故障机壹台先科触摸键电磁炉,故障表现为显示E9。网上查找资料显示E9为温度传感器故障。首先检测功率管传感器100K,正常,炉盘传感器100K正常。再查找分压电阻和5V电路也正常。后来突生灵感,对炉盘传感器插座加焊锡。开机正常。 |
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