Voltage Problem on 2011 (EM2469) MBA

Hi!

I am currently trying to figure out why my MBA Logic Board is not working and the Battery is not charging. I tried to follow the Schematics from the power in to where the voltage drops.

Until this chip I keep my around 14V but on one pin it drops here (red squared one)

http://share-your-photo.com/bb19b27a69

The Connector which goes to R6920 only has 1,27V on the Multimeter, but the other two connectors of D6905 have the +/- 14V. Is that normal? What kind of part is D6905?

This is the chip on the board (red square)

http://share-your-photo.com/47fe572d46

the red circle indicates the component on the board which gets very hot, after plugging in the charger it takes around 30 seconds and I cannot even touch it anymore without burning my fingers.

All measuring was without battery. Charger only has the green LED on, nevermind whether the battery is plugged in or not and the board does not start.

Thank you very much for your help!

chris