yes is a expensive way to learn, but is fun...

I have hobbie more expensive this one, like my motorbike.
I do not know if I can do the jtag until the end, but in any case want to thank you for your help.
I bought the device to read the volts and ohms, and then I read your manual "Troubleshooting connection problems NAND-x"
http://team-xecuter.com/forums/showthread.php?t=77908&highlight=NAND+troubleshooting+guide
using your instrution, i got the following results:
point 1 = 1.36V
point 2 = 3.31V
point 3 = 1.24V
point 4 = 0.0V
point 5 = 3.09V
point 6 = 0.0V
point 7 = 0.0V (not indicate in the manual, is the yellow cable)
ohms reading:
r3b15 = 34.4ohms
tested connection with r3b15 point and ft3n2 point and get 0 ohms.
tested connection with r5b15 resitor and ft3n2 point and get 34.4ohms.
the connections in r3b15 are ok.
about the reading of the ohms of the 0V points i must have the psu connected?
I have made 2 reads of the point 4 and 6, psu not connected and psu connected.
using the black probe in groud (same point used to read volts) and the psu connected,
point 4 = 41.5 ohms
point 6 = 9.0K (device in 20K)
with psu not connected,
I obtain reading only when i put the device in 2000K (see the image)
point 4 = 264
point 6 = 530
The point 6 is almost the double of the normal (5.6K), do you now what can be the reason?
When connected the psu to make the read of the point 4 and 6 the console switched on, fan working, the game controler was not connected in the usb port. disconnected the psu, connected again and same problem.
Now the xbox power up every times i connect the psu. get green light in the psu. Connected the power button and every time the xbox start when insert the psu, click the power button and the console goes to standby mode... crazy
I used the new aplication xnandhealer to check one of the 3 reads made before my problem and the nand is valid with 0 error, the cb is 9230.