After replacing the power supply board, the light is still off which I think the problem is in the main board. So I pulled the hard drive out and connected to my Macbook, all the files still there. I tried Migration Assistant but it always shows "searching" for nearly one hour. I also tried EaseUS data recovery but couldn't parse the sparsebundle file. Is there any way I can try to get my data back without repairing TC mainboard? any suggestion would be highly appreciated.