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1 故障现象1.1高条件长时间曝光时 ,控制台内出现哄鸣声 ,电源表、kV表指针回偏 ,出现白片。1.2低条件下短时间曝光时 ,照片影像示严重不足 ,不能满足诊断要求。2 故障分析 出现上述故障可能有如下原因 :(1)电源内阻过大造成压降过大 ,使电源表指针回偏。(2 )自藕变压器部
1 Symptom 1.1 When the condition is high for a long time exposure, a beeping sound appears in the console, and the power supply and kV pointers are back-biased. White patches appear. 1.2 In the short exposure under low conditions, the photo image shows a serious shortage and cannot meet the diagnostic requirements. 2 Fault Analysis The above faults may have the following causes: (1) The internal resistance of the power supply is too large and the voltage drop is too large. (2) Self-turning transformer