Moderator: Captain Ned
just brew it! wrote:The question in my mind is whether the problem is really the jack, or the circuitry which drives it. You may end up replacing the jack, only to find that it still does not work. On the flip side, it is also possible that the problem is merely a cracked solder joint; simply re-flowing the solder connections on the affected jack might be enough to fix it.
I'll bet the extra 2 connections are just to give it more mechanical strength (probably redundant grounds).