[SOLVED]Damaged LED

[Mitteau]

Hello, everybody
M3 LED of my cf do not light up. Looks damaged.
Can I find another one and what is the reference ?
Thank you
Jean-Claude M.

[tobias]

I would guess it is the soldering that has cracked. Heat up the solder on the different pads with a soldering iron and it will most likely work again.

[Mitteau]

Thank you for quick answer.
That's the problem. I made new soldering three times. It works a little bit then stopped. And now the color has changed : no more white but yellow-brown. Perhaps my soldering iron was too hot...
Nevertheless I can fly without M3 Led...
Regards
Jean-Claude M.

[tobias]

Maybe it is the trace to the LED that has cracked. If you bend the arm a bit can you get it to light up? If the trace has cracked somewhere I would think it would be close to the solder pads. Then scrape off the lacquer covering the trace just beside the pad so you can solder the trance and the pad together again.

[Mitteau]

Hi
That's right. The difficulty is the solder which is at the center of the LED. I half-succeed soldering it, the work is not easy. Nevertheless, now, I know the problem: I did not see the third connection of the LED.
Bye
Jean-Claude M.

[tobias]

Actually on the blue leds the center pad is not electrically connected. The blue led is an Evelight 12-21-BHC-AN1P2-2C. However I still have doubt it is actually the LED that is broken. Much higher probability it is the soldering or one of the traces.