Problem Crackling from anode after rewiring cab, speckles on screen

[deadendthrills]

I rewired my cab today with a new JAMMA loom which has fixed issues I was having with RGB but created an ominous crackling from the anode cap which also manifests as light speckles on the screen. The JAMMA loom itself has been tested before without this issue, but since then I've spliced it onto a replacement AMP-UP connector from Videotronics, as the old one had been damaged. I've checked and double-checked all the pinouts but am wondering if the problem is where I've spliced the two AC cables for the AMP-UP. I doubt it's the anode cap itself as it looks very clean and didn't have this problem before splicing the new loom.

The bridge loop on the left is the degauss pins, which is how the AMP-UP in my cab was previously, and which didn't cause issue with the old loom.

 

[deadendthrills]

So I cut the loop in the degauss wire and the problem seems to have gone away. Not sure why my cab originally had that loop but I'm guessing the monitor was switched at some point to one with automatic degaussing rather than the manual of the MS9? Either way, can't imagine having that circuit bridged is a good idea.