Dashboard Clock goes off?

[sven337]

Originally Posted by Kaanktm

Could you please inform about the circuit connections on the board.

Are you asking about how to connect the buck module I had to the board? Assuming you have the same, but all buck modules work the same way anyway, you have three leads to connect: Vin, Vout, and GND.
If you look at my very blurry (sorry..) last picture, you can see two red wires and one black wire (at the bottom)*come out of the module. The black wire is GND, and I've taken it at the GND of the capacitor that is next to the blue inductor.
Vin was the + of this capacitor (I think the capacitor/inductor/diode here are an input filter, all I really care about is that there's a constant 12V power supply available there and it was the input of the NPN transistors).
Vout is the leftmost pin of the VFD connector (all 4 left pins are connected together).
I hope this helps you