Here's how my VS cable is wired if it helps (glad I checked, noticed the universal ground cable is broken!)
Looks like your cable is missing pin 14, video ground.
28, 27, 14, 13, 12, 10
f, e, b, a, Z, Y, X, W, V, U, T, P, N, L
It doesn't need any voltage passing through, just the video...