There is a trouble shooting section in the maintenance manual. I hope you have one. It takes you step by step for every voltage and what the range is. Is this on a phase converter?
There are a pile of LED lights to aid diagnosis. The FMDC has eight accross the top. The AUF has one just about dead center and the mother board (BSP) has a string of them along the edge facing out. Again, the book would help.
It sounds as if the EZIO is bit maping the CRT correctly and the BSP is not booting correctly. All those tests are normal, but it does not go on from there.
George
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)