Hello, This TV was brought to me previously because it did not turn on and change an optocoupler from the source and it was working for a week. I have been returned for the same problem, I checked the optocoupler and it is fine. The problem is that if I disconnect the PS_ON signal the TV works correctly but when I turn it off the TV consumes 10 Watts, it does not turn off the source. I checked the mic and it gives the PS_ON signal, 3.3V when it goes off and 0V when it turns on. There is a component, I understand that it is a Q202 mosfet (with XF1V mark) on the mainboard that is associated with the PS_ON line that does not switch ... but in the gate there is 0.6V when the microphone gives 0V. I have desoldado said mosfet and I have brought the PS_ON signal that goes to the power board to 0V, and the fault is that the A5V signal ranges between 5V and 3.3V. Both boards without connecting PS_ON work correctly, but connecting them the TV does not turn on. The source is BN44-00518B. I add photos of the plates. Power board [url=https://www.yoreparo.com/external-link?codeHref=aHR0cHM6Ly9pYmIuY28vRm1NMVJMNA%3D%3D&hash=89044d7058869441c0b40c2af5c945eb] https://ibb.co/FmM1 Main board [url=https://www.yoreparo.com/link-external?codeHref=aHR0cHM6Ly9pYmIuY28vTldTNXg0Uw%3D%3D&hash=bfe32bbb088427288afac998c07c3498] https://ibb.co/NWS5x4 PS_ON circuit power board [url=https://www.yoreparo.com/external-link?codeHref=aHR0cHM6Ly9pYmIuY28vUU52QmttMg%3D%3D&hash=e4d790963e332c76973b32a9cea35e78] https://ibb.co/QNvlkm [ Optoacouplersinprimary [url=https://www.yoreparo.com/link-external?codeHref=aHR0cHM6Ly9pYmIuY28vTkxIYzA5dg%3D%3D&hash=abdbbc79d10c3721d0a9774f9ecff641] https://ibb.co/NLHc09 [NLHc09 PS_onCircuitinmainboardtopowerboard [url=https://www.yoreparo.com/link-external?codeHref=aHR0cHM6Ly9pYmIuY28vbmswWThZWQ%3D%3D&hash=f31028c0cbe266e7b2e1a5f8305b1d2e] https://ibb.co/ urk //ibl.co

I ask you what is happening when that tr dials 0.6 volts