Hello everyone.
After many years away from radio control and due to the confinement by # Covid_19 I have removed old junk from the warehouse.
I have dusted off my old radios, an Airtrónics M8 and a Nomadio Sensor to play VRC-PRO www.wrcworld.com
To be able to use them for a long time I used a 5V power supply for the Nomadio and another 12V power supply for the Airtronics.
By my mistake I connected the 12V power supply to the Nomadio and it broke. Don't power ON
Yesterday I tried to repair it and found a diode that was burned out. I bypassed it and the Nomadio came back ON.
I was very happy to have it repaired, but when I tried to connect it to the PC in order to play VRC I was unable to pair it with the transceiver. Before the mistake I played perfectly and the transmitter/transceiver are perfectly paired. I tried to rebind in the transmitter and push the bind button in the transceiver but don't pairs-


Arrows color
Pink: USB comunication port
Orange: frontal buttons board
Green: main board.
Red: radio board
Yellow: trims and programables buttons (2 sides)



the radio boards from another angle



Mainboard



power and data connector, in red circle positive pole and the burned diode.
As I bypassed the diode and as protection I installed a DC-DC step down regulator as showed in the image



With it I can regulate the output voltage, 5,5V for example, and the input voltage is indifferent. In this way, I can power the Nomadio whith a power supply from 5V to 48V or a 1S, 2S,3S…10S LiPo battery and the output voltaje always is regulated to 5,5V

I think that the overcurrent have afected to the radio board, but I have no idea how to repair it.

If somebody have a Nomadio broken, I would also be interested.
I need the radio board, it doesn't matter if the screen doesn't work or it has broken steering wheel or throttle.

Thanks.
Excuse me for my bad english.
Edit: please, I see I have duplicated the post but I can access to the other, a moderator can delete the other?

Hi,
I think that I have problem in the 2,4GHz radio module

Hi, I purchased this radio used a few days ago & it worked fine till last night. I put a batter in the vehicle I purchased it with then turned the radio on. It powered on & to my surprise, it said “Sensor by Nomadio” which it hadn’t done b4. I then powered on the car & it said something else & I missed what it said as I had music going, I turned the radio off then back on again, but it did not power on this time & has not powered on since. I took it apart & looked at the diode that you had shown the burnt out in yours & it looks fine. I didn’t see anything else that could have been burned out. I put fresh AA in it & tried again to no avail. Any thought on what it could be? What I missed. Kinda pissed off as I used this thing twice & it’s already dead.

Have you tested if the diode as continuity in one sense only?

Since you have the nomadiu removed, can you tell me exactly what the diode is printed on his surface? Can be "s36" or "ss36"?

it the “s36” I would post a pick but according to the forum I’m not good enough yet. Please feel free to email me at [email protected] for easier correspondence. I’d like to hopefully get this fixed. Thanx.