CMU Manuals
1100.4903.82 0.1 E-4
Contents of Manuals for Universal Radio Communi-
cation Tester CMU200/CMU300
Service Manual Instrument
This service manual for Universal Radio Communication Tester CMU provides information on
checking the generator for compliance with rated specifications, as well as on adjustment, repair and
troubleshooting. It further contains all the information necessary for repairing the generator by the re-
placement of modules.
The service manual comprises five chapters and an annex (chapter 5) containing the CMU circuit docu-
mentation:
Chapter 1 Provides all the information necessary to check CMU for compliance with rated
specifications. The required test equipment is included, too.
Chapter 2 Describes the adjustment of the +5 VDC reference source and of the 10-MHz
reference frequency source as well as the software-controlled adjustment of indi-
vidual module data following module replacement.
Chapter 3 Describes the design of CMU as well as simple measures for repair and fault
diagnosis, in particular, the replacement of modules and access to hardware set-
tings by means of service commands.
Chapter 4 Contains information on the extension and modification of CMU by installing
instrument software and retrofitting options.
Chapter 5 Contains spare parts lists and exploded views of CMU.
Operating Manual
In the operating manual for CMU basic unit you will find information about the technical specifications
of CMU, the controls and connectors on the front and rear panel, necessary steps for putting the in-
strument into operation, the basic operating concept, manual and remote control.
For introduction typical measurement tasks are explained in detail using the functions of the user in-
terface and program examples.
The operating manual contains all information on the characteristics, operation and remote control of
the CMU including RF and Audio measurements. It further provides hints on preventive maintenance
and fault diagnosis by means of warnings and error messages output by the unit.
Service Manual Modules
The service manual modules is not delivered with the instrument but may be obtained from your R&S
service department using the order number 1100.4903.92.
Service manual modules contains information about the individual modules of CMU. This comprises
the test and adjustment of the modules, fault detection within the modules and the interface descrip-
tion.
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