Bought a DMD clock awhile back and I absolutely love it, but the DMD has an issue.
Basically I have a very faint vertical line that is always semi-lit (it's in the P in the photo). It's very hard to see and almost goes away if it's powered off long enough. I've done the test and no pixels are out, everything looks fine, and all the animations display OK.
I'm sure you experts can help me to diagnose the issue!