Rohde & Schwarz R&S FSH - Page 6

R&S FSH Contents
1145.5973.82 I.3 E-11
3 Repair..............................................................................................................................................3.1
Instrument Design and Functional Description............................................................................3.1
Description of the block diagram ................................................................................................3.2
Attenuator ...................................................................................................................................3.2
RF to IF conversion ....................................................................................................................3.2
Tracking generator (Model 1145.5850.13/23/26 only) ...............................................................3.4
RF/IF control...............................................................................................................................3.4
Mainboard...................................................................................................................................3.4
Power and battery management ................................................................................................3.4
Processing of measured data detectors.....................................................................................3.5
Resolution bandwidths (RBW)....................................................................................................3.5
Video bandwidths (VBW)............................................................................................................3.5
Detectors ....................................................................................................................................3.6
Keypad control............................................................................................................................3.6
Serial optical interface ................................................................................................................3.6
Power sensor..............................................................................................................................3.6
Color LCD module......................................................................................................................3.6
Module Replacement .......................................................................................................................3.7
Overview of the modules............................................................................................................3.9
Opening the instrument ........................................................................................................... 3.10
Closing the instrument............................................................................................................. 3.10
Replacing the battery............................................................................................................... 3.11
Replacing the housing............................................................................................................. 3.12
Replacing the front unit for R&S FSH...................................................................................... 3.13
Replacing the Color LCD Module............................................................................................ 3.14
Replacing the RF/IF module.................................................................................................... 3.15
Replacing the mainboard.........................................................................................................3.16
Replacing the N connector ...................................................................................................... 3.17
Replacing the binder and BNC connector block ..................................................................... 3.18
Replacing the power/audio connections.................................................................................. 3.19
Replacing a cable from the cable set ...................................................................................... 3.20
Troubleshooting............................................................................................................................ 3.21
Overview of errors, causes, and possible corrective actions .................................................. 3.22
Troubleshooting problems in switching on the instrument ......................................... 3.22