Have TV Questions? Ask a TV Technician
Hello, and sorry you're having problems. We are now connected on this website- which saves you money over having a Tech come to your home, and in many cases we can fix the problem you're having. In other cases, these things do require additional parts to fix. But I can help you with that as well.
It's impossible to say it's an inverter or not without more information. First, when the screen goes black- do the backlights actually go out?
Also if you shine a flashlight against the screen at a 45 degree angle when the screen goes black, can you see a shadowy image of the programming behind the screen?