R&S ZVB Instrument Construction and Function Description
1145.1078.82 I-3.1 E-4
Table of Contents - Chapter 3 "Repairs"
3 Repairs............................................................................................................. 3.1
Instrument Construction and Function Description ..........................................................................3.1
Block Diagram ............................................................................................................................3.2
Description of the Block Diagram .............................................................................................3.11
Board Replacement.............................................................................................................................3.20
Board Overview ........................................................................................................................3.21
Replacing Front Module Controller A90 ...................................................................................3.22
Replacing the Lithium Battery on the Front Module Controller.................................................3.25
Replacing Hard Disk A60..........................................................................................................3.27
Replacing LCD A70 and the DC/AC Converter ........................................................................3.28
Replacing Flexible switch board (Keyboard) A16 / Key Pad A15.............................................3.30
Replacing the Front Cover........................................................................................................3.32
Replacing Disk Drive A30 .........................................................................................................3.33
Replacing USB Board A40 .......................................................................................................3.34
Replacing Power Supply A20 ...................................................................................................3.35
Replacing Fuse board A21 .......................................................................................................3.36
Replacing a Fan........................................................................................................................3.37
Replacing Motherboard A10 .....................................................................................................3.38
Replacing a Reflectometer RM8 A510 to 540 ..........................................................................3.41
Replacing a Reflectometer RM8 A510 to 540 ..........................................................................3.41
Replacing Generator Board (R&S ZVB4/8 only) ......................................................................3.42
Replacing Receiver Board (R&S ZVB4/8 only) ........................................................................3.43
Perform the factory system error calibration (see Factory System Error Calibration). Replacing
Generator and Receiver Cover (R&S ZVB4/8 only) .................................................................3.43
Replacing Generator and Receiver Cover (R&S ZVB4/8 only) ................................................3.44
Perform the factory system error calibration (see Factory System Error Calibration). Replacing
the Inner Conductor of a Port Connector (R&S ZVB4/8 only) ..................................................3.44
Replacing the Inner Conductor of a Port Connector (R&S ZVB4/8 only).................................3.45
Replacing the Bridge Unit (R&S ZVB4/8 only) .........................................................................3.46
Replacing a Reflectometer RM20 A510 to 540 ........................................................................3.47
Perform the factory system error calibration (see Factory System Error Calibration). Replacing
the Coupler Unit (R&S ZVB20 only) .........................................................................................3.47
Replacing the Coupler Unit (R&S ZVB20 only) ........................................................................3.48
Replacing the Reflectometer Fan .............................................................................................3.49
Replacing Network Controller Board A130, A140 ....................................................................3.50
Replacing Synthesizer Board A150, A160 ...............................................................................3.51
Replacing LO Divider A600 ......................................................................................................3.52
Replacing Frequency Reference Board A100 ..........................................................................3.53
Troubleshooting ..................................................................................................................................3.54
Test Equipment and Accessories .............................................................................................3.54
Troubleshooting - Power-up Problems .....................................................................................3.55
Troubleshooting Boot Problems ...............................................................................................3.56
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