故障现象 :治疗中冷源回源不彻底 ,但没有故障显示 ,第二次出冷源时则显示冷源不在贮存位 ,必须重新回源才能再次出冷源。这种现象造成 :如用两个以上通道模拟则第二个通道不能出源 ,更不能进行热源治疗。故障分析 :(1)参考点处光电开关可能损坏。(2 )源从参考点回到储存位时距 Symptoms: During the treatment, the source of cold source is not completely recovered, but there is no fault display. When the source of the cold source is shown for the second time, it indicates that the cold source is not in storage and must be returned to the source before it can be used again. This phenomenon causes: If more than two channels are used for simulation, the second channel cannot be sourced, and it cannot be treated with heat source. Failure Analysis: (1) The photoelectric switch may be damaged at the reference point. (2) When the source returns from the reference point to the storage position