Rohde & Schwarz R&S SMU200A, Service Manual

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R&S SMU200A Module Replacement
1007.9845.82 3.51 E-6
Installing a New RF Module
Plug the new board into the instrument and reconnect the RF cables.
Reinstall instrument cover 1.
Perform internal adjustments after replacement according to chapter 2, “Adjustments”.
Replacing a Digital Board
(See chapter 5, spare parts list 1141.2057.01, parts list and drawing 1141.2005.01 and 1161.0066.01)
A
Table 3-3 Replacing digital boards – overview and specific requirements of the individual boards
Digital module Specific Requirements
DAC Interface A340 Caution: Do not forget to unplug 3 coaxial cables on the bottom side before pulling out the
module and to retrofit after inserting the new board.
DAC Board,
Option B13 A580 The DAC interface board A340 first is to be dismounted (see “ Replacing the Digital Module
DAC Board, A580 - Option B13 ” section on page 3.52 ).
Universal Coder
Option B10/B11 A500
Differential I/Q
Output Two cables have to be mounted.
Fading Simulator,
Option B14 A520
Fading Simulator
Extension
Option B15 A525
I/Q Bridge
Option B15 A640
Baseband Input
Option B17 A620