How do I troubleshoot disappearing picture on my TV?
TV is Philips, Model No.: 50PFL3008H/12
When I turn my TV on I get sound and picture no problem. However after about 10 minutes the picture disappears. When I shine a flashlight on the screen I can see silhouettes. I don’t understand why does it happen after some time of running. Any Idea?
What also worries me is the power board. I can hear quite annoying high-pitch buzzing and right above it there is a black ‘trail’ from heat, I assume. This is my first open TV so I have no idea if it’s normal or not.
What I would like to find out is how do I determine what is the issue causing the picture to disappear and is the power board ok?