H520 main board

RPG · Apr 5, 2025

I need a complete main board for a H520. If anyone has a good one please let me know.

RPG · Wednesday at 5:44 PM

Does anyone know of a source to get the h520 main board schematic. I'm trying to find out what the parts are with ADEG 150 . I believe they are part of the motor circuitry. I have noticed a drop of sorter against a d e g and it touches a circuit next to it. This is located on the motor that I've had failure problems with. I would like to see the schematic so I can understand how that circuits put together. Maybe my fix to the older problems

WTFDproject · Wednesday at 8:52 PM

RPG said:
.... I'm trying to find out what the parts are with ADEG 150 .....

A picture would be a great help. Especially a close-up of the solder.

RPG · Wednesday at 10:58 PM

Hope this is clear

WTFDproject · Wednesday at 11:33 PM

RPG said:
View attachment 32041
Hope this is clear

It is. It needs to come off. Not the first stray solder drop we've seen on a Yuneec board.
If you can't remove it yourself, you might find an electronics / computer repair shop that can help.
Unfortunately, the existence of the solder may have already damaged something. You won't know until it is removed.

RPG · Wednesday at 11:54 PM

I believe that's the problem but as you said the damage may be done. I received another board and had it half connected and saw two motor wires are missing. Now I don't know if somethings wrong or not. It's a gift that keeps on giving. I'll remove this tomorrow and we'll know if it's good or bad

h-elsner · Thursday at 2:59 AM

I couldn't find datasheet for those circuits but I'm pretty sure that this are dual "Gate Driver" for the MOSFET bridge. The MOSFET bridges control the motor coils.
The number after ADEG is different from board to board (a lot number?). A problem with those driver may cause defect MOSFETs but the drivers usually contain a overcurrent protection.

You will never get a schematic of the H520 board but the principle is here for example: