I have a Samsung 22" TV that comes on for about a second then goes black. I followed some threads that led me to replace capacitors to no avail. In the thread it said that the caps would be bulged, but none of mine were. I gave it a shot anyway. The sound is working and I can faintly see the picture if I darken the room and shine a flashlight into it. This tells me that the backlight has failed. The model is ln22b360c5d. Can you help me fix it?