Hi folks from this great community, I have a 32pfl2507 / f8 philips TV that when I connect it to the line it cries the source, if I disconnect the main then it stops screaming, so I conclude that it is the main card of the problem. my question is if someone has solved this fault, or you have to forcefully change the main if someone wants to share with me that knowledge or how to look for the fault, I thank you in advance. atte: mesor