Good day, I talked with the client to know what input he is using and he answers that catv's so in that case there would be no problem.
I placed a digital tv antenna and it works perfectly. After a while the screen turns off but the sound still works. I measured all the operating source voltages, now I have to wait for the fault to occur again and compare the voltages.
Good morning I had this TV running three days in these conditions and it never failed. I delivered it to the client, and I will be waiting for something new