| 故障表现为:三无. 此机电源板是IPL42A，开机检查没有3.3V，更换FSQ510和2个2.7欧电阻后3.3V正常。强制开机3.3V电压波动，怀疑滤波不良，代换FSQ510外围电容，当代换到450V/10UF电容时3.3V正常，故障机修到这里，终于修好值得探讨。。 |
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