Good afternoon colleagues from the forum, I have a problem with the TV described since in principle I brought the yoke short and I was putting the vertical IC short, I changed the yoke to another that is not exactly the same as the original and the TV lit but with a lot of width and reduced vertical deflection, so I decided to enter service mode and if I succeeded but I had problems navigating the items, then simultaneously pressed the channel + and volume + buttons and now I can no longer enter mode service and the TV when connecting to the network no longer turn on the LED or turn on when pressing chanel + only turns on with the remote control and the channel synthony now appears to me with a little rain, I already exhausted my resources and I request your collaboration to know how to navigate the items of the service mode and restore the circuit to its factory state and thus leave this nail, see you later, a hug.