See, the conundrum is this: There is at least one Paramount diagram and various Paramount sources (KA for one) which say that the TOS Connie had at least aft phaser banks and even a torp tube. Howevr, if this is true then why does the Refit Connie not have an aft torp tube? Why would they get rid of a perfectly good weapon like that when the geenral idea was to ADD more weapons on the ship to make it powerful enough to take on the latest Kling ships (which by the way have aft torps of course, so it's not an issue of "turning tail and running").
Hmmmm
I like to think the TOS Connie had at least aft phasers below the clamshell doors, becaus there are actually a series of lit greeblies there that COULD be phasers or something like that, but you don't have a similar arrangement on the Refit Connie, whose aft phasers are positioned ABOVE the clamshell doors. In fact, if those greeblies were not aft phasers and were instead some kind of navigational landing device/arrangement then obviously they are not really needed because the TMP refit does away with them completely. So, you could surmise that they are not for that purpose, and hence could be weapon hardpoints. The mind reels.