Page 1 of 1

bottom layer wont do red

Posted: Wed Aug 17, 2016 10:48 am
by icemandave
this is the second cube i have made in 2 days.
you would think being $120 from jaycar it would come with clean components.
As both kits had black tarnished leds.
first kit 2 leds didnt work
the second is great but i noticed the bottom layer wont do red?
if someone could please help
also the start up sequnce the first 2 leds at the front right all the way up light up
if that helps thank you

Re: bottom layer wont do red

Posted: Thu Aug 25, 2016 2:18 am
by w1sby
Check all of your solder joints carefully. I had a similar problem with one of the ones I built. I had missed a joint on one of the risers.
I also had another place where I had solder bridge a gap that it was not supposed to. I do not remember which caused the symptoms you are seeing, but once I found it it solved the problem.
I hope that helps.