hfosteriv
New
United States
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Hello everyone, my first post on here so I will try to be as accurate and informative as possilble!
I have a DJI Osmo Zenmuse X3 camera, and had made a 3D printed external battery setup (before they were market available). Yesterday during normal use my osmo decided to turn ff and not turn back on afterwords, after som basic disassembly, i found a slight burning smell from the inside of the handle unit (part 17 I believe). I dissassembled the entire unit and did some circuit testing and visual inspection to find only one issue component located on the bottom left of the board(indicated by red box in image below). With the battery pushed against the terminals I get a reading at the pin indicated by the green box below But after that I get no 3v3 reading at any of the testpoints on the board but I do get the nominal voltage reading at the first 12v testpoint.
The chip was pretty burned up, and when I tried to remove it gently under a microscope, it crumbled into nothing but before I removed it I was able to get 4 large letters off of it that read AEUG but didnt find anything more.
I am wondering if anyone else here knows what chip this AEUG chip is so I can order another from mouser or digikey. I dont want to have to order another handle new with such a simple repair, and I am concerned about buying a donor handle for parts when this seems like it might be one of the reasons for the issues with the donor handle too.
Yes this is a simple repair for myself, I am an engineer that runs a 'side business' of doing component level repair for various small electronics, namley laptops so I am really not interested in just purchasing a replacement.
Just looking to see if I can get any information about the chip, I plan to call DJI and explain the situation to see if they can provide me with the specifications for replacement but I want to get several irons in the fire so to speak.
Thanks for your time and reading.
Board view with component issue location:
The pin that is showing the 12v nominal supply:
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