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fdbrighter:一块1.6厚,沉金的pcba上面5块BGA的封装芯片。测下来有几个管脚开路。怀疑虚焊。拍了xray也不太看得出什么。请大神帮忙看看。....... (2020-05-23 22:39)
fdbrighter:感觉xray拍得还是不太清楚。看不到dark ring。 (2020-05-25 23:54)
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