Hi.
I made a stupid mistake!
V- to V+
V+ to V-
I heard sparking noise so I turned the power supply down.
I realized something was wrong.
As a result, D13 seemed to burnt badly.
I had a hope that it would work correctly if I connect power in right way.
I tried it, red and blue LEDs lighted, but D13 caught fire and lighted.
I thought only a diode burnt. After D13 removed, there are three points to solder.
two points seems to be GND and connected each other, opposite side seems to be plus DC Voltage.
I have some diodes and might try one of them. but I don’t get what three solder points mean.
Is there anyone who give me advice?