Rohde & Schwarz 1138.4000, Service Manual

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Radio Unit R&S CRTU-RU Module and Cable Exchange
1140.0050.82 5.1 E-4
5 Documents
This chapter contains the documents for the CRTU Radio Unit. The documents for the modules with the
description of function, adjustment and interfaces are relegated to the Service Manual, Stock no.
1110.4903.92. To order replacement parts and modules please contact our
spare parts express service
or your Rohde & Schwarz service representative and note the hints given in the following section,
Module and Cable Exchange .
The address of our spare parts express service and a list of Rohde & Schwarz representatives can be
found at the beginning of this service manual.
Module and Cable Exchange
Table 5-1 at the end of this section lists all power cables available. The stock numbers necessary for
ordering replacement parts and modules can be found in the component lists further down.
Important Note!
When replacing a module please note the safety instructions and the repair in-
structions given in chapter 3 of this service manual.
Ordering replacement parts
To deliver replacement parts promptly and correctly we need the following indications:
•
Stock number (see component lists in this chapter)
•
Designation
•
Component number according to component list
•
Number of pieces
•
Instrument type the replacement part belongs to
•
Contact person for possible questions
Replaced modules
Replaced modules are an economic alternative for original modules. It should be kept in mind that
replaced modules are not new, but repaired and fully tested parts. They may have traces from use
but they are electrically and mechanically equivalent to new modules.
To find out which replaced modules are available, please refer to your Rohde & Schwarz representa-
tive (or to the central service division, Rohde & Schwarz Munich). The identification number is usually
the same as for the original module, but with a variant index .95, .96, .97 or .98.
Ordering and delivery of replaced modules
For ordering replaced modules, the same indications as for ordinary parts are required, however,
with the corresponding variant index appended to the stock number.
Taking back defective replacement modules
Defective modules of the replacement program which can be repaired are taken back within
3 months after delivery of the replaced module. A repurchasing value is credited.
Excluded are parts which can not be repaired, e.g. PCBs that are burnt, broken or damaged by repair
attempts, incomplete modules, parts which are heavily damaged mechanically.