The image intensifier TV System x ray is out of order and the power supply is dead. We usually suspect that there is a problem with the power supply. We can test the high-voltage power supply first. If the normal data can not be detected at the five test terminals of the high-voltage power supply, this is an abnormal situation. There are two reasons for this failure: one is the leakage of the inner gallbladder of the image intensifier TV System x ray, which results in the heavy load of the power supply and the deviation of the voltage of each pole, that is, the short circuit of the power supply. Secondly, there is a problem in the power supply itself, which has nothing to do with the inner gallbladder of the image intensifier. We recommend that the cause be found through specific image intensifier testing. Once the image intensifier fails, we recommend that we do not randomly evaluate the status of the image intensifier TV System x ray. We should find professionals to detect the failure of the image intensifier TV System x ray and find out the cause of the failure of the image intensifier through testing.