OK, I tried to put the pin-out together. I don't have the cable, but I played around with the Multifunction Audio Cable YC A200 which I opened up for that purpose. Only when pins 3 and 5 are connected and not 4, the TP recognizes a video cable and askes for the video norm. When using these pins as ground, there is a humming noise and the video flickers. By connecting these pins with pin A, this problem is solved. I put the info on a figure... could someone with a cable and a multimeter validate it?
I made then a custom cable to work with the Multifunction cable. For this, a 4-pin 3.5 mm plug was worked on with a Dremmel (see figure). The plug needs then to be inserted into the receptacle so that the notch is at the upper left. Just turn the plug till it is no longer identified as headset but as video cable. The extra ground connection I got from a regular mini USB cable. Tested and works without problem...
http://forum.xda-developers.com/show...5&postcount=19
could a mod please sticky this post?