Martin Logan Problem

I own a pair of SL3's and one of them have recently gone dead. After looking at it closly, I discovered there are some wires attached to the left and also to the right side of the back of the metal cage at the bottom just above the bass speaker. When I apply heavy pressure using my hand from the front of the metal cage at that point where the wires are soldered, the sound would be restored.

Has anyone come across this problem or maybe understand what it could be? Also, is there a way of disassembling this speaker so that I could get to the problem? Please advise. thanks.