Rohde & Schwarz CRTU-RU Service Manual page 17

Radio Unit R&S CRTU-RU
Contents of User Documentation for Protocol Tester
CRTU Radio Unit
Service Manual Instrument
This service manual for the CRTU Radio Unit provides information on checking the instrument for
compliance with rated specifications, as well as on adjustment, repair and troubleshooting. It further
contains all the information necessary for repairing the instrument by replacing modules.
The service manual comprises five chapters and an annex (chapter 5) containing the circuit documenta-
tion for the CRTU Radio Unit:
Chapter 1 Provides all the information necessary to check the CRTU Radio Unit for compli-
ance 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
module data after module replacement.
Chapter 3 Describes the design of the CRTU Radio Unit as well as simple measures for re-
pair and fault diagnosis, in particular the replacement of modules and access to
hardware settings by means of service commands.
Chapter 4 Contains information on the extension and modification of theCRTU Radio Unit
by installing instrument software and retrofitting options.
Chapter 5 Contains spare parts lists and exploded views of the CRTU Radio Unit.
Data Sheet
The data sheet for the Universal Protocol Tester CRTU-G, PD 757.6056.2x, informs about the tech-
nical specifications of the CRTU Radio Unit.
Operating Manual
The operating manual for the CRTU Radio Unit contains information about the controls and connec-
tors on the front and rear panel and their technical specifications, necessary steps for putting the in-
strument into operation, startup of the instrument until the GSM operation software is activated.
Service Manual Modules
The service manual modules is not delivered with the instrument but may be obtained from your R&S
service department.
The service manual modules contains information about the individual modules of the CRTU Radio
Unit. This comprises the test and adjustment of the modules, fault detection within the modules and
the interface description.
1140.0050.82 0.1
Manuals
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