IrishSights said:
Hey beeline, do you think you would have the time to do a more detailed howto? With a few more pics covering some of the questions raised so far. The work you have done so far is excellent.
Thanks mate! I wish I had taken pictures of the install but didn't and I'm a bit reluctant to pull anything apart for pics (I might not be so lucky next time!). Any pics of how she sits now I'll be happy to provide.
Made plenty of mistakes muddling through this process but got a great start by watching this video about 10 times
https://www.youtube.com/watch?v=TL8pqtEDuos&list=PLTd6szmxjVtaTQVlI8AODklX6km7Crgf3&index=8. I think he installs a H3-2D and a different VTx than mine but the rest is relevant. I also routed my transmitter wires through a different leg.
My first goal was to attach the 30 pin Hero port plug to the back-plate of the gimbal. Peel off the sticker covering the ribbon cable and remove the cable (there is a tiny tab or something to release it). Remove the now exposed screws from the back of the back-plate that hold the slug. This was difficult as the screw resisted the entire way out. A better screwdriver would have helped. Insert the new Hero port connector where the slug once resided. Insert the screws through the front of the back-plate using the slug as your nut on the backside. The slug also serves to protect some exposed bits on the back of the new plug. There are pictures at the very beginning of this thread for reference.
Next, I laid out all the wires from the gimbal to the iOSD and to the VTx and taped them together to check and double check that connections were correct. Be sure your wires are properly routed so they all wind up inside the Phantom when closing her up. This was my first time soldering and these wires are tiny, so a heavy dose of trial and error applies if you are not a pro like me. YouTube to the rescue. Don't forget the heat shrink (before you make the solder!).
While everything is still pulled apart, attach your GoPro to the gimbal, power up the Phantom and verify that video and the iOSD are working properly. Be sure your VTx antenna is attached but do not supply power to the gimbal (the gray cable on the back) for this test.
Remove the battery and stuff everything into the Phantom (as per the above video) and attach the lid. Attach the gimbal and its power supply and then the GoPro to the gimbal. It will click securely into place. I left the anti-interference board in place for now (mounted internally) and all is well. Be sure the wire leading out of the gimbal floats freely and is not too short or long, or in any way encumbering the gimbal movement.
Do a basic and advanced calibration along with calibrating your compass before your next flight.
Hope I haven't forgotten anything (errors and omissions clause here). I am certainly no expert. The main thing is to take your time and have no fear of the soldering iron. Hey, if I can do this, anyone can!