Excellent tuto...
I got few questions. I got a JBJ canopy that I want to repurpose. But 4 of the 5 strips don't light up. I already checked the board where it connect each strip with the one that light up. And all the channel works. How can I identify the diode that might be causing the strip not to light? Or it could be something else? How can I diagnosed the posible cause of not lighting it up?
Hey Gino!
Sorry for the delay. It sounds as if you might have a few dead LED's causing the strips to not light up. My recommendation would be to pick up a cheap 2-AA battery holder and solder to leads off of the pack. One on the positive and the other on the negative. Keep in mind to try to match the voltage as close as possible to what each LED would be driven with.
Once you have done that, I would go through each one matching up the positive and negative terminals from the pack with the LED on the board to see which fire up and which ones are dead.
Hope this helps!