The wonder of the internet. Look around for awhile and you're bound to find an expert in any given field. You can download parts manuals, test procedures, just about anything you'd like if your Google-fu is strong.
Here in the family, we call this machine the Magic Information Box. Ask it a question, it'll spit out an answer. Maybe not the answer you're looking for, but if you keep at it, you'll get an inkling of where you need to look next. No, I'm not going into particulars, but I'm a whole lot further along than I was a daylight today. Hopefully, this is an easy fix.