Rohde & Schwarz 802.2020.54 Manuals

Manuals and User Guides for Rohde & Schwarz 802.2020.54. We have 1 Rohde & Schwarz 802.2020.54 manual available for free PDF download: Service Manual

Rohde & Schwarz 802.2020.54 Service Manual

Rohde & Schwarz 802.2020.54 Service Manual (630 pages)

Radiocommunication Tester CMT

Brand: Rohde & Schwarz | Category: Test Equipment | Size: 31 MB

Table of Contents

Table of Contents
46
Stabilization of the Output Voltages
49
Soft Start
50
Protection of the 5-V Output
51
Protection of the 12-V Output
51
Testing and Adjustment
53
Testing the Switch-On and Monitoring Logic
54
Starting-Up the Switching Regulator
55
Testing the Power Pack under Load
57
Start-Up with AC Supply Operation
58
Testing the Specification with the Power Pack Closed
58
Troubleshooting
84
Component Lists Circuit Diagrams Component Layout Diagrams
84
Testing and Adjustment
169
Adjusting the 100-Mhz Crystal Oscillator
169
Testing the Synchronization with an External
169
Lo-Mhz Reference Frequency
169
Adjusting the Reference Oscillator Option (OCXO)
169
Testing the VCXO Loop
170
Frequency Adjustment of the RF Oscillators
170
Testing the RF Loop
171
Testing the Spurious FM
171
Troubleshooting
172
DC Voltage Values
172
Signal Level
173
RF Level
173
Testing the Control Signals for the M Divider
174
Interfaces
175
Component Lists
230
Circuit Diagrams
234
Component Layout Diagrams
249
Service Manual for 2Nd AF Synthesizer Option CMT-B7
369
Function Description
369
Testing and Adjustment
370
Testing the Input Stage
370
Adjusting the Sinewave Generator
370
Testing the Reference Voltage
370
Testing the Level Attenuator
370
Testing the PILINT Output (Internal Pilot Tone Output)
371
Serv I Ce man Ual
385
Function Description
385
455-Khz if Section
387
Testing and Adjustment
388
Testing the Fixed Oscillator
388
Testing the if Section
389
Adjusting the Fixed Oscillator
390
Adjusting the Oscillator
390
Adjusting the Phase Control
390
Adjusting the if Section
391
Adjusting the Offset
391
Adjusting the Balance
392
Interfaces
393
Service Manual for Display/Keyboard Module
427
Function Description
427
Key Detection
427
Rotary Pulse Generator
427
Display Control "'''.,''G0
427
Led/Illumination Control
427
Loudspeaker Amplifier
427
Rotary Pulse Generator
428
Display Control
428
Led/Illumination Control
429
Loudspeaker Amplifier
429
Troubleshooting
432
Service Manual for RF Millivoltmeter Option Em-B8
508
Function Description
508
Testing and Adjustment
509
Testing the Reference Generator
510
Replacing the Diodes in the Probe
510
Replacing the Diodes in the 10-V and 100-V Insertion Units
510
Function Description
537
Output Frequency
537
VCXO Loop
537
RF Loop
539
Control and Diagnosis
540
Testing and Adjustment
542
Frequency Adjustment of RF Oscillators
542
Level Adjustment of RF Oscillators
542
Testing the RF Loop
543
Testing the Frequency Dividers
543
Testing the VCXO Loop
544
Troubleshooting
544
Frequencies at the Output of the N Divider
544
DC Voltage Values
545
Signal Levels
545
Control Signals for Octave Divider
546
Control Signals for the M Divider
546
Bit Pattern
547
Interfaces
548

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