来看看是如何维修的:
观察G41 Head Drive板DS8(X-my)灯不亮,无-24V电压,测该板Z6:XLO Logic为5V,再测B22(XHi/XLODR)为5V,结合输入Head Driver板各逻辑信号,判断U3(AD7511)异常,更换AD7511故障排除。
西门子M2-6745加速器故障二:
开机后出现Mode(Hw),Mode(Sw)连锁,Head Control只亮TAR DR。
来看看是如何维修的:
打 开机盖找到C41 Head Drive,观察印刷板中间烧黑,功放块UDN2943Z已烧坏。初步
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