TweeTer Not working.

Question

Hi, i was wondering, before dismanteling both door panels in order to see if the tweeter is just blown or if the cross-over just went out. My Right front Infinity Reference tweeter has no sound what so ever coming out of it. it was working fine up until i noticed a different sound in my car. & i realized my tweeter wasnt working.

My questions is: Do you think it is blown? or maybe the cross-over? & is there an easy way to finding out?

Thanks!!