Troubleshooting - post assembly, 9 LEDs do not turn on

[gokul.krishnan]

Help!

I just finished assembling my first cube. Believe it or not, this was the first time I ever held a soldering rod in my hands! Took me over 4 days (@1-2 hrs per day) to fully assemble it, and I must confess I thoroughly enjoyed every moment of it!

Once connected to a USB power source, the cube goes through the self-test process and then cycles through the default pattern. However, 9 of the 64 LEDs do not turn on. These 9 LEDs are not in any specific plane and are distributed across all of the 3 axes. I had doubly made sure that all the LEDs are inserted corrected i.e. the longest LED-pin into the square slot.

Any suggestions on how I can troubleshoot what may be wrong, if it is a fried LED, or need to re-flow the solder etc.?

regards,
Gokul

[andrew]

Reflow all the joints and let us know how you get on.