|I'm not altogether sure what the intended purpose of these things is but whatever...|
Once you pop it open, you can cut the wires from the breakout jacks, which will clean out some of the rat's nest inside. In my case, all of the wires were black, which... isn't great:
|The input/output switch isn't glued in, so you can remove it and save it for another project.|
|Here you can see one of the removed spade-prongs, with the popout locking mechanism.|
|You'll notice the SCART side has one less ground and one more white, unlabeled prong than the JP21 side. I just left that prong out entirely (#12) and everything still seems to work fine.|
Once the prongs are all reordered, you can use a small pokey thing to engage the center-locks, no soldering required. I used a cheap dental tool I had laying around to do the job, but those little pointy electrician's tools (the ones that look like dentists' tools with screwdriver handles) should work fine, too. After that, just glue the casing back together and you should be all set.