Any suggestions? My TV has a great picture but it will blink out, the screen will go black . You can still hear the sound. If you tap the TV real quick the picture will come back on and stay on great. But if you bump it again or walk by it with heavy footsteps the picture will go out again.
You most likely have a bad connection around the flyback transformer or on the CRT driver board. There is alot of voltages around these areas I have just mentioned. This could be a simple fix for someone who knows how to solder and work on printed circuit boards, but if you do not have any experience solder on small printed circuit boards, play it safe and call in a trained tech to assist you in this repair, as it really should not be a big deal. Good Luck with this repair and please keep us informed as to what the problem was.