Won't charge at all

My ipad does nothing. Battery is okay with 3,85V. But when i connect the 30Pin Kabel a coil near the PWM IC is getting real hot nothing else happened. "2R2” stands on that coil and it i one of the bigger once.

The link shows the Coil

http://www.u2ugsm.com/blog/wp-content/up...

Good Picture here:

http://forum.gsmhosting.com/vbb/f631/ipa...

according to the diagram here and the points where i can meassure i just come till point number 5 (4,9Volt). the rest of the numbers 5,6,7 i get 0Volt