Well while I don't have voltages from the FCC Header, I too also seem to only get voltages through a few pins... I think on the FCC20 pin you get like 5.05 Volts or so...
I took voltages from the back of the PCB with it plugged in an powered Up:
Alright,
So I've got the voltages from my XBOX (which doesn't work)... Note that the pin out numbers correspond to the pin numbers shown in the Wire Header installating for the Xecuter Pro2 chip on the Xbox-scene website...
Since I've installed the pin header, I have voltage both from the back of the chip when it is plugged in, and just the raw pins:
---BACK OF CHIP---
1) .22 Volts (seems odd)
2) 3.29 Volts
3) 5.05 Volts
4) 3.25 Volts
5) 3.25 Volts
6) .57 Volts (seems odd too)
7) 3.25 Volts
3.25 Volts
---Directly FROM Pins---
1) .26 Volts (seems odd)
2) 3.29 Volts
3) 5.05 Volts
4) 3.27 Volts
5) 3.26 Volts
6) 0 Volts
7) 3.25 Volts
3.25 Volts
Do you think somebody can post the Voltages they have from a working board?