Commissioning, but at the instant of the shutdown is a momentary grating, illustrate basic normal line, field oscillating circuit, fault is put in apparent tube circuit and peripheral circuit. Examined three inspect the pipes are as, by high accelerating voltage, grating of flyback lines, judge fault in brightness of decoding and signal processing circuit, focusing on the decoding, scanning the small signal processing integrated circuits IC601 (AN5192K), measured 14} {, 23} {and} {47 feet of normal power supply voltage is 9 v, 5 v, peripheral components related to the luminance signal pin is no exception, estimation is IC601 damaged by lightning strong electric field. After replacing IC601 images appear, back after accelerating voltage troubleshooting.Acdservice manual download site