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故障现象开机 ,机器操作台上ＯＶＥＲ灯即亮。ｍＡ控制板上的Ｄ３—０１灯也亮。机器无法进入工作状态。故障分析与检修根据上述故障现象 ,并结合随机电路原理进行综合分析。ｍＡ控制板上Ｄ３—０１灯是灯丝加热工作异常故障指示灯。初步分析故障可能是该机灯丝加热电流过大或?
The fault phenomenon turns on, and the OVER light on the machine console is on. The D3-01 light on the mA control board is also on. The machine cannot enter working condition. Failure analysis and maintenance are based on the above-mentioned fault phenomena, and a comprehensive analysis based on random circuit principles. The D3-01 lamp on the mA control board is a malfunction indicator lamp for the filament heating operation. The preliminary analysis of the failure may be the machine filament heating current is too large or?