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Motorola Manuals
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R-20010
Maintenance manual
Motorola R-20010 Maintenance Manual
Communications system analyzer
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Paragraph Page
Foreword
Repair Request Form
Section 1. Introduction
Description
Physical Characteristics
Electrical Characteristics
Input/Output Characteristics
Major Assemblies
System Analyzer - Top View
System Theory of Operation
Description
System Control
Processor
Processor Bus
General
Generate Mode
RF BUS Control
MOD Control
Receiver Control
Duplex Control
Receiver Filters
Frequency Standard
RF Synthesizer
Wideband Amplifier
Step Attenuator
Input/Output
Wattmeter
Monitor Mode
RF Input
2.5.3 Recei Ver
Duplex Generator (Standard and Enhanced)
Code Synthesizer
Frequency Counter
Digital Voltmeter (DVM)
Distortion/Sinad Meter
Oscilloscope
SYSTEM ANALYZER Block Diagram
Alignment Procedure
Introduction
Test Equipment Required
Preparation for Alignment
Basic Alignment Procedure
CRT Intensity Bias
CRT Astigmatism and Geometry
CRT Vertical Centering and Trace Rotation
3.2.7 Crt Horizontal Gain
Alignment Points
3.2.8 Crt Vertical Gain
Vertical Input Gain
DVM Zero
Character Generator
Spectrum Analyzer Centering
Alignment Points
3.2.13 Horizontal Timebase
RF Synthesizer Module (A9)
Alignment Points
System Checkout and Troubleshooting
System Checkout and Troubleshooting Procedures
Battery Charger Board
Test-Point Identification
Frequency Standard
System Wirelist and Parts List- System Motherboard (A19)
System Motherboard Wirelist
System Wirelist
Communications
High-Voltage Power Supply (A1)
Scope Amplifier Board
Printed Wiring Board Assembly and Parts List
High Voltage Power
Control Logic Functions
Battery Charger Board (A3)
Switcher Board (A6)
Output Voltages
Control Board (A4)
Block Diagram
Control Board (A4)
Control Board (A4)
Output Board
Printed Wiring
Internal DVM Inputs
Scope/DVM Control Board {A7)
Block Diagram
Scope/DVM Control Board (A7)
Control Board (A7)
Figure
Printed Wiring Board Assembly
Description
Theory of Operation
Linear if Section
Logarithmic Amplifier
0.2.3 FM/SSB/WB Signal-Present Detectors
0.2.4 Baseband Audio-Processing Circuits
Baseband Audio-Processing Circuits
Digital Control and Power Conditioning
Low-Pass Filter-Control-Bit Patterns
High-Pass Filter-Control-Bit Patterns
Modulation-Select-Control-Bit Patterns
Receiver Board (AS)
Logarithmic Amplifier
Section 11. Rf Synthesizer Module (A9)
11.1 Description
Theoryofoperation
Reference and Control Board (A9A 1)
Receiver Board
Reference and
Synthesizer Output
640-Mhz Loop Board (A9A6)
Printed Wiring Board Assembly
Ghz Loop Board
Mhz Loop
640-Mhz Loop Board (A9A6)
Printed Wiring
Block Diagram
RF Synthesizer Module
Printed Wiring Board Assembly
And Parts List
To 440-Mhz Loop Board (A9A2)
Oscilloscope
To 440-Mhz Loop
To 440-Mhz Loop
310 TO 440-Mhz LOOP BOARD
Synthesizer Output Board
Schematic
Mhz LOOP BOARD (A9A4)
Schematic
Schematic
Mhz Loop Board (A9A4)
Ghz Loop Board (A9A5)
Ghz Loop Board (A9A5)
Board
640-Mhz Loop Board (A9A6)
640-Mhz Loop Board (A9A6)
Synthesizer Motherboard (A9A7)
Assembly and Parts List
Printed Wiring
Audio Synthesizer Board (A10)
Description
Theory of Operation
Audio Synthesizer
DPL Generator
Assembly and Parts
1-Khz Tone
Internal Modulation
External Modulation
Modulation Control
Audio Synthesizer Board (A10)
Processor Interface Board (A11)
Assembly and Parts
Board Control
Processor Interface Board (A11)
Section 13. Processor Interface Board (A11)
Board
Printed Wiring Board Assembly and Parts List
Printed Wiring Board Assembly
Description
Theoryofoperation
Microprocessor
Memory
Memory Map
14.2.3 Input/Output
Memory Map
14-3. Block Diagram
Printed Wiring Board Assembly
Block Diagram
01-P29050H001
Description
Microprocessor
Front-Panel Interface Board (A15)
Printed Wiring
AF ADD and DATA BUS
Input Switching
RF-Attenuator Encoding
Functions of Miscellaneous Inputs
Sweep-Select Encoding
Block Diagram
Printed Wiring Board Assembly and Parts List
Front-Panel Interface Board (A15)
Theory of Operation
Frequency-Standard Interface Board (A16)
16.1 Description
Internal Source
External Source
Printed Wiring
Frequency-Standard Interface Board (A16)
Wattmeter Board
Wideband Amplifier Board
Wide Band Amplifier Board
Assembly and Parts
Wide Band Amplifier
Duplex Generator Board (a 17 A3)
Duplex Generator Board
Generator Board
Board
Wattmeter
Section 17. Rf Input Module (A17)
RF Wattmeter Board
Wideband Amplifier
RF Input Module
Wideband Amplifier Board (A17A2)
Duplex Generator Board (A17A3)
Enhanced Duplex Generator
RF Input Module
Enhanced Duplex Generator Board (A1 7A3)
Front Panel Assembly (A18)
Description
CONTROLS, SWITCHES and Leos
Front-Panel
Inside Front Panel
Inside Front Panel
Switch Interconnect Board (A18A2)
Section 19. Battery Assembly
19.1 Description
Installation
Printed Wiring
19.3 Operation
Section 20. Cellular Telephone Test Option
20.1 Description
Theory of Operation
Transmitted Data
Received Data
Control
Modulation
Manual-Mode Control
Block Diagram
Cellular Telephone Test Option
Part 1. Ieee Interface
21 .1 Description
Theory of Operation
IEEE Bus Interface
Remote Interface
Assembly and Parts List
IEEE Bus Interface
RF-Level Control
Modulation Control
Multipurpose Input/Output and Relay Ports
21.3 Description
21.4 Theory of Operation
Bus Interface
Address-Decode and Control-Latch Circuitry
Assembly and Parts List
Block Diagram
Printed Wiring Board
Section 22. Secure Com Option
Description
22.2 Theory of Operation
Transmit
Receive
Encoder Section
Inputs
Encryption Type
Encoder Outputs
SECTION SECURE COM OPTION (Cont)
Measurements
22.6.1 Bit Error Rate Test
Deviation Measurement
Duplex Generator
Oscilloscope Displays
Features
Self Testing
22.7 .3 Dual Code Operation
22.7.4 Plain Text Output
22.7.5 Printer Interface
Block Diagram
Block Diagram
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COMMUNICATIONS
SYSTEM ANALYZER R-20010
Motorola,
Inc.
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Maintenance Manual
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Algonquin
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Schaumburg,
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RLN4073A
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Table of Contents
Troubleshooting
SYSTEM CHECKOUT AND TROUBLESHOOTING
69
System Checkout and Troubleshooting Procedures
70
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