Obnoxious music and lousy video

I can't tell you how much I appreciate the time you took to make this video and to even shoot it from two angles. Many thanks.

TDBU Is top down, bottom up

What does PCA and TDBU stand for?

It would be much better if the video is more clearer or closer to the material being repaired. I can Hardly see what he's doing.

Thanks for the great video! I was able to use the walk through to fix an issue with the internal strings. You saved me so much difficulty and cost of dealing with a Hunter Douglas Service Centre! 👍

Great video, do you think that this would apply to a Powerview motor for a Sonnette shade? Thanks!