March 5, 2013 at 1:12 pm #20891
I’m not sure that I understand the situation fully; perhaps you can clarify a few things:
1. Columns 0-16 are dim, and 17-25 are bright, even after swapping U4/U5. Correct?
2. Do you have some other LEDs that are not lighting correctly?
3. Have you finished installing the LEDs yet?