You could have it serviced by a technician, but unfortunately, I don't have any suggestions on what the issue could be without inspecting the unit.
I bought a used TV last year with no warranty. I knew it had a problem when I bought it but now I want to fix it.
When I turn on TV, it works perfectly for 10 or 15 minutes. I was able to make it work longer last summer by using a fan sighted into the TV but now I don't know what to do..
I replaced the power supply but it didnt work so I'm trying to find some help here.