23
 
 
Use the following procedure when mounting a 4003. 
 
1.  Carefully open the shipping container. 
 
2.  Remove the 4003 from the shipping container and lay the unit on a flat 
surface. 
 
3.  Unlock and open the panel door. 
 
4.  Remove the microphone from its holding clip and set it aside. 
 
5.  Remove the four screws holding the retainer (internal door) to the back box, 
as shown in Figure 11.   
 
RETAINER  HOLDING SCREWS
SCREWS
 
 
Figure 11.  Location of the Retainer Holding Screws 
 
Continued on next page 
Mounting the 4003 
Mounting Procedure 
RETAINER HOLDING 
SCREWS