Hello, I'm after electronic school, but unfortunately I have never worked in my profession. I still remember Conieco and I have a question. After switching on the TV has no sound but no picture. I read similar topics. Image after highlighting the flashlight is. I read that it was the fault of the power supply that does not give voltage on the leds. I bought the whole power supply board at auction (used-seemingly functional) after attaching the same. There is no voltage at the backlight output. Question, should you always see tension after switching on? Is it still controlled from the second board? Maybe someone had a similar problem and can tell what could be the reason? Thank you in advance and best regards. daniel
