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The 3V jumper is showing .02 - 0.04 (which I assume is bad :-)

Definitely bad, but not necessarily serious. Is the 3 volt jumper in the same relative position as the 5 volt one? If not, move it to the other postion and retry. If it is, you will need to try to find the point where the 3 volts goes missing, starting with the TX board. It'd probably be something with the DB-25 cable. Report back and I can point you to where the 3 volts can be found if needed.

Hope this helps,
Stu