The story is this, I bought this non-working FVM on ebay, which was used for the endoscope, it did not turn on, changed all the capacitors on the boards, changed the transistors and PC111 on the power supply, but it turned on and does not start, please help, what could it be? on the video how it turns on after idle time, it goes into protection and the orange light flashes, it seems to me that the electricity does not reach the tube
https://youtube.com/shorts/bhYls0jKDNc