My xz premium has power ic issue

Hi there,

my xz premium stop working. It doesn't display anything and doesn't vibrate when I plug in the power cable. The display is totally not functioning at all. So I went to the local repair shop and I was told that the problem was with the power IC issue. They also told me that they don't have the parts. So I went around from shops to shops that sell spare parts. Some of them told me that they have the parts for XZ premium but I wanted to make sure that I am buying correct part number. So could any of you help me to find schematic of XZ premium motherboard or workflow like the one I have uploaded.

Thanks