Module Replacement  R&S FSP 
1164.4556.82 3.66  E-1 
Replacing the DC/DC Converter Option R&S FSP-B30) 
(See chapter 5, spare parts list, item 3000.) 
The DC/DC converter (3000) is mounted on the rear panel of the instrument. 
 
See also DC Power Supply  R&S FSP-B30 operating manual. 
 
CAUTION  
The DC/DC converter in an unmounted state is a module in "open frame" design. 
Therefore make sure that it is mounted only by skilled electricians (see operating 
manual, safety instructions, item 9). 
Make sure that the DC/DC converter is separated from the supply source. 
Removing the DC/DC Converter 
 Unplug the supply cable on the DC/DC converter. 
 Unscrew the three captive screws on the converter. 
 Pull off the converter to the rear.  
 
Installing the new DC/DC Converter 
 Plug the DC/DC converter (3000) onto the rear-panel power plug. 
 
Note: The power switch is automatically actuated when the DC/DC converter is connected.  
  Fasten the converter to the rear panel with three fixing screws. 
 
Note: 
Rear-panel foot with Options R&S FSP-B30 (DC/DC converter) and R&S FSP-B1 (housing with 
shock protection):  
If Option R&S FSP-B1 is present, the right rear-panel foot (3020) is modified in order to ensure sufficient 
ventilation of the power pack.  
 
Fig. 3-1  Removing and installing the DC/DC converter, R&S FSP-B30