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发表于 2009-5-7 16:34:12
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驱动板问题,我这里有一台U2-811是这样的,驱动板里有五个IRF640,其中有3个坏了,更换后,机器正常./ }9 l2 n1 s2 D& N% o0 z: G5 s+ N
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