It's my first instructable, and I wanted to share with world what hawe I done this time. Time to time I play with many of things upgrading it's functionality. But with this one I like to share. By the way, sorry if my language is bad, but there, in internet you already are familiar with that, I prefer. So, closer to case, you bought your iPhone4 or iPad, I got my iPhone too, so that's nothing exceptional. You bought VGA adapter, I bought too, and it drains baterry fairly quick. So there it ends, add USB to your VGA adapter, and I wil try to explain how. Sadly I dont hawe all steps with coresponding images, so I will use what I hawe.
What you need:
1. Apple iPad VGA adapter
2. USB cable with one end 4 pin USB A jack connector
3. Soldering iron with small tip
3.1. Hawing flux will help a bit.
3.2. Some tin
Step 1: Opening 30pin Connector
Somehow you need to remove inner plastic bezel from 30pin connector side. its glued there, so with some screvdriver, knife or somthing else help you need to open it. If you dont broke it while opening, than when you end it will look as new.
Step 2: Remove Shielding
Than you need to remove shielding, it's soldered around, so start with smaller ones, and last open at the wire side. Actualy I didn't unsolder, I just scraped exces tin with knife, and then gently cracked open it one by one.
Step 3: Customize Shielding Plates
Broke down one side of that shielding part from booth plates, so there is room where to place wires.
Step 4: Solder Back One Plate
Solder back one plate in place, but remember to leave open side with IC's.
Step 5: Solder Your USB Cable
1. Cut off other end of USB cable that you dont need.
2. Make hole in plastic case for wire and put wire throught it, don't miss it!
3.Solder USB wire as in picture (F-Free)
4. Solder USB shielding somwhere to metal casing (if cable has one)
USB pinouts: http://pinouts.ru/Slots/USB_pinout.shtml
30pin connector pinouts: http://pinouts.ru/PortableDevices/ipod_pinout.shtml
Step 6: Solder Back in Place Last Shielding Plate
As in steps title solder back in place last shielding plate.
Step 7: Putting Together Plastic Case.
Slide it all in place, and glue back that small plastic bezel.
Step 8: Use It!
Wuola, now you can watch movie and charge your idevice simultaneously.
For more advanced adapter usage google for TVOut (of course you need Cydia.)