There are actually 8 Case screws *all on the back - need a long philips #2 to do it.  Might have to remove the handle frame too for access and ease. 
The entire case is "glued" around the apparent seam (face comes apart from back).  
Use a rubber mallet (hammer) to hit it on the bottom (large plastic area near the seam) to start the separation, once it starts, rip it apart by hand - being careful that there are a couple of 'Plugs' to unhook when you separate the face from teh back.  
Yes, there is a fuse in there and it was the fix for mine - fuse blown. 
Desert Solutions . Net
                
 Sam (Desert Solutions)
                
 November 2007