Has anyone had to replaced a Z-Chip in a MH-721 Cutter and if you have cane you walk me through it I know where it goes I just dont want to put it in upside down and melt my Mother Board. I cant get anyone to answer at Tech and need my machine really bad. It takes me 5 to 7 days to get my stuff when I order it , I am in Ky. Need help bad have a big job to do and really cant wait until Monday.