Operation Manual
20  
DL371 Audio System Engine
Operator Manual
>> To fit a module
1 Make sure that the unit is switched off and electrically isolated (see “To remove 
power from (electrically isolate) the unit” on page 16).
2 At the rear of the unit, offer up the rear of the module to its required module 
position. Make sure that the module is in the correct orientation and that the 
bottom eject handle is in the angled down position, as shown in the following 
diagram.
3 Insert the module into the empty slot and push it carefully, but firmly, into 
position. The bottom eject handle will clip back up into its fully fitted position 
(matching the top eject handle) when the module is in place.
4 Secure the module using the two securing screws (see Figure 1 on page 19).
5 Connect up the unit and switch it on (see Chapter 4 “Getting Started”).
6 Check that the new module is functioning correctly (see “DSP modules” on 
page 11).
Module
Rear of 
DL371 
Audio 
Cut-out
Bottom eject handle 
to be in the angled 
down position










