Siemens AR.T EX0823排除
故障显示是曝光就reset,而且复位也复不起来了.机架亮不起来.错误代码的描述是>
DETAILED DESCRIPTION:
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Basic filament current is less than 4.2A for more than 8 seconds. This error
could be caused by a broken filament/filament transformer in the Rotanx, faulty
feedback or a too low supply to the filament.
查灯丝电源D21板发现灯丝的 40V电源没有.电路板上F11保险丝熔断,更换后,开机,保险丝依然熔断.仔细检测电路,发现F11后边电路,灯丝电路的整流桥有一个二级管短路了(MR856),更换一相近二极管机器就正常工作了. 谢谢分享:victory:
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