故障现像:自动关机 检修与分析:通电观察发现,机器刚显示“TCL”字样就马上关机,检测主板各个供电均正常,重点排查下复位电路发现C003处电压1V多(正常0.69V),更换Q001 ,D001通电检测,复位电压正常,开机正常。 |
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