I'm not sure I understand your question. The taxonomy archive is in the typical locations automatically created by WordPress for any taxonomy, i.e. http://www.site.com/taxonomy_name_slug/taxonomy_term_slug
I have already disabled archives for the CPT in question, and that works fine. But that CPT still shows up on the archives of the taxonomy (along with another post types), and I would like this specific CPT *not* to appear in the archives of that taxonomy.
Does it make sense?