Board replacement

[EstebanRH23]

Hi,
I got some problems with the board of automodel car V1, How can I get or purchase a new one?
The problem is that after I press the green button for three seconds, the entire board don't stays energized, it turns off just after I release the green button, maybe is a problem with the relays.
Or can I substitute the relays? I would like some advice.
Regards.

[AutoModelCar]

Most of the time the hardware does not have problem, maybe it is Servo problem.
Please disconnect servo from the board, (you should open the lidar and then under the lidar you will find the servo connector on the board), then try to start the car. If it works, hen you should replace just the servo.

[EstebanRH23]

I already did that, I've disconnected the servo, I've reload the main program in the Arduino board and doesn't seem to make a effect, even I checked the fuses and they look fine.
I'm pretty sure that the problem is with the board because we got borrowed another V1 car and we changed the board, after that the car worked fine, and the other car got the same problem.

[AutoModelCar]

Disconnect whole cables , motors , lidars, ...
Check it again.
Play with Arduino code, change it to make the board always on, without switch.
Check it again ...
Otherwise you should send the board to Berlin to be checked.