I have a Sony HVR A1U video camera. It is about 4-5 years old. Last week I powered it on and put in a tape. Everything was working fine and I flipped over to the "view video" mode and it turned off. Now no lights turn on and the tape will not eject. The only activity is an occasional white flash on the LCD. I have tried this sing battery and ac power. Does anyone know what might be causing this? And if so, suggestions on fixing it?