I was watching tv today all of a sudden the tv picture went fuzzy and a high pitch noise came on. I recently replaced the light bulb in February and I took it out to check it, its still good. Now when I try to turn the tv the noise come on and there is no picture. I took off the back and I can see the lightbulb turn on, but then it shuts off and the noise continues. Any possibility to what happen and how I can fix it myself?