收到同行送来的故障机壹台电视机是海信LED39EC110JD液晶电视,故障表现是电源指示灯不亮,拆开机器,开机测电源12v正常,在测12V转5V电路N18无5v输出,试着代换n18,AIC2863-5后,还是没有5v输出,后来用一块DC,DC电源板装上后,一切正常,故障修复。 |
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