"While attacking, if the defender spends a token, it cannot suffer more than 1 damage on hull zones other than the defending hull zone."
Rules Clarification Edit
Even if the defender is equipped with Advanced Projectors, XI7 Turbolasers
prevents the defender from suffering more than one damage in total on hull zones other than the defending hull zone.
For example, if an attack deals 4 damage, a defender with Advanced Projectors must suffer at least 3 damage on the defending hull zone; the fourth damage can be suffered on any hull zone.
FAQ Version 4.1.1; 2018/04/23
The effect of this Upgrade Card triggers during Attack Step 5: "Resolve Damage"