Hi folks, I'm new to this forum. So, my name is Rui Freitas and I'm from Portugal. I have a crt tv with a problem. If none of sources is connected to it the tv turn off a second after I turn on and If I try to use any of two scart sources sometimes the image doesn't appear or the sound but after a few seconds the tv turns off. It seems like the tv only remains on if it were connected to aerial. It is a Sayno tv, I really don't know the model right now but I can get it tomorrow. So, if anyone could help I will be much appreciated. Cheers.