Motorola R-2002A User manual

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MOTOROLA ll'ttiC.
Communications
Group
R-2001A/R-2002A
COMMUNICATIONSSYSTEM
ANALYZER
© Motorola, Inc. 1980
All Rights Reserved
Pr i nted in U.S.A . 1313 E.
Algonquin Road, Schaumburg , II. 60196 68P81069A84-0
5/ 30/80- SK

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TABLE OF CONTENTS
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FOREWORD
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SECTION 1
1-1
Introduction .............................................................................. 1-1
SECTION 2 - DESCRIPTION
2-1 Description ............................................................................... 2-1
2-3 Microprocessor ........................................................................... 2-1
2-4 Display .................................................................................. 2-1
2-5 System Warnings ......................................................................... 2-1
2-6 Functions ................................................................................ 2-1
2-7 AM, FM, CW, DSB Signal Generation ...................................................... 2-2
2-8 Simultaneous
Modulation ................................................................. 2-2
2-9
Modulation Display ....................................................................... 2-2
2-1 0 Sweep Generation ........................................................................ 2-2
2-11 SINAD Metering .......................................................................... 2-2
2-12
Multi-Mode Code Synthesizer ............................................................. 2-2
2-13
Off-The-Air Monitor ...................................................................... 2-2
2-14 IF Display
................................................................................ 2-2
2-15 Spectrum Analyzer
....................................................................... 2-3
2-16 RF
Burnout Protection ............ , ....................................................... 2-3
2-17 Terminated
RF Power Measurement ....................................................... 2-3
2-18
In-Line Power Measurement. ......................................................... , .... 2-3
2-19 Duplex
Generator ........................................................................ 2-3
2-20 500-kHz
Oscilloscope ..................................................................... 2-3
2-21 Frequency Counter ....................................................................... 2-4
2-22
AC/DC Voltmeter ......................................................................... 2-4
2-23 Power
Supply ............................................................................ 2-4
2-24 Accessories
.............................................................................. 2-4
SECTION 3- INSTALLATION
3-1 Packing Information ...................................................................... 3-1
3-4 Initial Setup .............................................................................. 3-1
3-5 Analyzer ................................................................................. 3-1
3-6 Battery Pack ............................................................................. 3-2
3-7
Blower Assembly ......................................................................... 3-2
SECTION 4 - OPERATION
4-1 General .................................................................................. 4-1
4-3 Controls, Indicators, and Connectors ...................................................... 4-1
4-5 Operation ............................................................................... 4-12
4-7 Calibrate
................................................................................ 4-12

TABLE OF CONTENTS (CONT)
Paragraph Page
SECTION 4- OPERATION (CONT)
4-8 Generator Operation ..................................................................... 4-13
4-9 Duplex Generation ...................................................................... 4-14
4-10 Frequency Counter ...................................................................... 4-15
4-11 Spectrum Analyzer ...................................................................... 4-15
4-12 Monitor ................................................................................. 4-16
4-13 Ext Wattmeter ........................................................................... 4-17
4-14 Simultaneous Generate and Measurement Operations ..................................... 4-17
SECTION 5 - MAINTENANCE
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5-1 Service ................................................................................... 5-1
5-6 Replacement Parts Ordering .............................................................. 5-1
5-9 Addresses ................................................................................ 5-1
5-10 General Offices ........................................................................... 5-1
5-11 U.S.Orders .............................................................................. 5-2
5-12 Canadian Motorola Electronics Company .................................................. 5-2
5-13 All Countries Except U. S. and Canada .................................................... 5-2
5-14 Major Assemblies .......................................................................... 5-4 ,...._
5-16 Theory of Operation ...................................................................... 5-5 4
5-17 General .................................................................................. 5-5
5-20 System Control ........................................................................... 5-5 ,._
5-25 Generate Mode ........................................................................... 5-5
5-34 Power Meter ............................................................................ 5-11
5-40 Monitor Mode ........................................................................... 5-12 -
5-52 Duplex Generator ....................................................................... 5-14
5-56 Code Synthesizer ........................................................................ 5-15
5-65 Frequency Counter ...................................................................... 5-17
5-71 Digital Voltmeter (DVM) .................................................................. 5-17 :
5-84 Oscilloscope ............................................................................ 5-19
5-96 Sinad Meter ............................................................................. 5-21
5-99 Alignment Procedure .................................................................... 5-22
5-100 Introduction .................... .' ........................................................ 5-22
5-102 Test Equipment Required ................................................................ 5-22 .-
5-104 Preparation for Alignment ................................................................ 5-23
5-105 Basic Alignment Procedure .............................................................. 5-23
5-118 Extended Alignment Procedure ........................................................... 5-27 ~
5-126 Checkout Procedure ..................................................................... 5-32
5-127 Introduction ............................................................................. 5-32
5-129 Test Equipment Required ................................................................ 5-32 ..,...
5-131 Procedure ............................................................................... 5-33
5-146 System Troubleshooting ................................................................. 5-37
SECTION 6- SYSTEM INTERCONNECT AND PARTS LISTS
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TABLE OF CONTENTS (CONT)
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SECTION 7- LOW VOLTAGE POWER SUPPLY (A1)
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7-1
General .................................................................................. 7-1
7-2
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Input Power Control ..................................................................•... 7-1
7-6
DC Output Control ....................................................................... 7-1
7-9 Protection
Circuitry ....................................................................... 7-1
7-13
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High Voltage Supply Control .............................................................. 7-2
SECTION 8 - SCOPE AMPLIFIER (A2)
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8-1
General .................................................................................. 8-1
8-2 Deflection
Amplifiers ..................................................................... 8-1
8-3 Horizontal Timebase Generator
........................................................... 8-1
-8-5 Horizontal
Switching ...................................................................... 8-1
8-6
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8-8 Intensity
Control ......................................................................... 8-1
Focus Control ............................................................................ 8-1
r 8-9 Astigmatism, Geometry, and Trace Rotation
............................................... 8-1
SECTION 9 - SCOPE/DVM CONTROL MODULE (A3)
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9-1
General .................................................................................. 9-1
9-4 Scope Vertical
Control .................................................................... 9-1
9-7 SSB Detection
............................................................................ 9-1
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9-8
i 455 kHz PLL
............................................................................. 9-2
t 9-9 Scope Horizontal
Control ................................................................. 9-2
9-11 Synthesizer Sweep
Control ................................................................ 9-2
-9-12 Scope
Z-Axis Control ..................................................................... 9-2
9-13
Modulation Display Control ............................................................... 9-2
9-17 Peak
Detector ............................................................................ 9-3
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9-18 DVM
Control ............................................................................. 9-3
9-21
SINAD Detection ......................................................................... 9-4
9-22
Module Control ........................................................................... 9-4
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SECTION 10- RECEIVER (A4)
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10-1 General
................................................................................. 10-1
10-2 Down Converter ......................................................................... 10-1
10-4 Linear IF Amplifier and Detectors ......................................................... 10-1
10-8 Audio Switching and Filtering ............................................................ 10-1
10-10 Logarithmic Amplifier and Detector ....................................................... 10-2
10-11 Alarm
Generator and Audio Amplifier ..................................................... 10-2
10-12 Module Control. ......................................................................... 10-2
SECTION 11 - RF SYNTHESIZER (AS)
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11-1
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General ................................................................................. 11-1
11-2 Frequency Synthesis Scheme
............................................................ 11-1
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TABLE OF CONTENTS (CONT)
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SECTION 11- RF SYNTHESIZER (AS) (CONT)
11-5 310-440 MHz Phase Locked Loop ........................................................ 11-1
11-6 60.5 MHz Phase Locked Loop
............................................................ 11-1
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11-7 550 MHz Phase Locked Loop ............................................................. 11-1
11-9 500-1000 MHz Phase Locked Loop ....................................................... 11-2
11-10 Modulation Control ...................................................................... 11-2
11-11 Module
Control .......................................................................... 11-2
SECTION 12- AUDIO SYNTHESIZER (A6)
12-1 General ................................................................................. 12-1
12-2 Private Line Generator ................................................................... 12-1
12-7 DPL Generator .......................................................................... 12-1
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12-10 1 kHz Tone .............................................................................. 12-2
12-11 External
Modulation ..................................................................... 12-2
12-12 Modulation
Control ...................................................................... 12-2 1
12-14 Module Control .......................................................................... 12-2
SECTION 13- PROCESSOR 1/0 MODULE (A7)
13-1 General ................................................................................. 13-1
13-2 10.245 MHz Phase Locked Loop .......................................................... 13-1
13-3 System Control Bus Interface ............................................................ 13-1
13-6 DVM .................................................................................... 13-1
13-8 Frequency Counter ...................................................................... 13-1
SECTION 14 -IEEE INTERFACE MODULE (AS)
14-1 General ................................................................................. 14-1
14.2 IEEE Bus Interface ...................................................................... 14-1
14-3 RF Level Control ........................................................................ 14-1
14-5 Modulation Control ...................................................................... 14-1
14-6 Address Decode and Control Latches ..................................................... 14-1
SECTION 15- PROCESSOR MODULE (A9)
15-1 General ................................................................................. 15-1
15-2 Processor ............................................................................... 15-1
15-6 Character Generator ..................................................................... 15-1
SECTION 16- HIGH VOLTAGE POWER SUPPLY (A10)
16-1 General ................................................................................. 16-1
16-2 High Voltage Supply ..................................................................... 16-1
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TABLE OF CONTENTS (CONT)
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SECTION 17- RF INPUT MODULE (A11)
17-1 General
................................................................................. 17-1
17-2
Input Protection and Power Meter ......................................................... 17-1
17-4 Wideband
Amplifier and Frequency Converter ............................................. 17-1
17-9 Duplex Generator
....................................................................... 17-2
SECTION 18- FRONT PANEL INTERFACE MODULE
18-1 General ................................................................................. 18-1
18-2 Input Coupling and Ranging ............................................................. 18-1
18-4 DVM Buffer ............................................................................. 18-1
18-5 Frequency Counter Preamp .............................................................. 18-1
18-6 Scope Vertical Preamp ................................................................... 18-1
18-7 Scope Horizontal Preamp ................................................................ 18-1
18-8 Control and Display Interface ............................................................ 18-1
SECTION 19- 10 MHz FREQUENCY STANDARD MODULE (A13)
19-1 General ................................................................................. 19-1
SECTION 20- FRONT PANEL (A14)
SECTION 21 -BLOWER ASSEMBLY
SECTION 22 -IEEE -488 BUS CONTROL
22-1 Introduction ........................................................................... 22-1
22-7 IEEE-488 Bus Structure ................................................................ 22-3
22-9 Bus Signals
........................................................................... 22-3
22-10 Data Transfer
......................................................................... 22-3
22-12 Programming
.......................................................................... 22-3
22-15 Command
Structure ................................................................... 22-4
22-24 Command Strings
.................................................................... 22-10
22-25 Command Types ..................................................................... 22-1 0
22-29 Trigger Command .................................................................... 22-10
22-30 Return Data
.......................................................................... 22-10
22-35 Programming Commands
............................................................. 22-11
22-36 Terminal Mode ....................................................................... 22-11
22-42 Error Messages ....................................................................... 22-11
22-45 Service Requests ..................................................................... 22-14
22-46 Programming Considerations
......................................................... 22-15
22-53 General
.............................................................................. 22-16
22-54 R2002A Analyzer
Configuration .................................. oA ••••••••••••••••••• 22-16
SECTION 23- BATTERY ASSEMBLY
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LIST OF ILLUSTRATIONS
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Figure Page
1-1 Communications System Analyzer .......................................................... 1-0 ~
2-1 Accessories Supplied with Analyzer ......................................................... 2-4
3-1 Typical Communication System Analyzer Packaging ......................................... 3-1
4-1 Controls, Indicators, and Connectors, Front Panel ........................................... 4-2
4-2 Controls, Indicators, and Connectors, Left Side Panel ....................................... 4-3
4-3 Controls, Indicators, and Connectors, Rear Panel ............................................ 4-3
4-4 System Analyzer Time Base Calibrate Test Setup and CRT Display .......................... 4-13
4-5 Duplex Generation Test Setup and CRT Display ............................................ 4-14
4-6 Spectrum Test Setup and CRT Display ..................................................... 4-16 -
4-7 Wattmeter Test Setup and CRT Display .................................................... 4-17
4-8 Test Setup for FM Receiver Sensitivity Using Generator and SINAD
Meter with CRT Display ................................................................... 4-18
4-9 Test Setup for Pager and Alert Functions with CRT Display ................................. 4-19
4-10 Test Setup for Using DVM and Signal Generate with CRT Display ........................... 4-20
5-1 Communication System Analyzer, Top View Cover Removed ................................. 5-3
5-2 Communication System Analyzer, Bottom View Cover Removed .............................. 5-3
5-4 Generate Mode Block Diagram ............................................................ 5-10
5-5 Power Meter Block Diagram ..........................................................•.... 5-12
5-6 Monitor Mode Block Diagram ............................................................. 5-13
5-7 Duplex Generator Block Diagram .......................................................... 5-15
5-8 Code Synthesizer Block Diagram .......................................................... 5-16
5-9 Frequency Counter Block Diagram ........................................................ 5-17 ,....-"""\
5-10 Digital Voltmeter (DVM) Block Diagram .................................................... 5-18
5-11 Oscilloscope Block Diagram ............................................................... 5-20 ""'"'
5-12 Sinad Meter Block Diagram ............................................................... 5-22
5-13 Scope Amplifier Alignment Points ......................................................... 5-23
5-14 Front Panel Interface Alignment Points .................................................... 5-26
5-15 Scope/DVM Control Alignment Points ..................................................... 5-27
5-16 Horizontal Time Base Alignment Points .................................................... 5-27
5-17 DVM Input Buffer Alignment Points ........................................................ 5-28
5-18 Scope/DVM Control Test Point Numbering .............................................•.... 5-28
5-19 Processor 1/0 A/D Alignment Points ....................................................... 5-29
5-20 Scope/DVM Control Char Sweep and Sinad Alignment Points ............................... 5-30
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LIST OF TABLES
Table Page
1-1 Physical Characteristics .................................................................... 1-1
1-2 Electrical Characteristics ................................................................... 1-1
1-3 Input/Output Characteristics ............................................................... 1-5
2-1 Accessories Supplied with the Communication Systems Analyzer ............................ 2-5
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2-2 Optional Equipment for Use with Analyzer .................................................. 2-5
4-1 Controls, Indicators, and Connectors ....................................................... 4-1
5-1 List of Subassemblies ...................................................................... 5-4
5-2 Control Buses and Functions ............................................................... 5-9
5-3 Basic Test Equipment Required ........................................................... 5-22
5-4 Extended Test Equipment Required ........................................................ 5-23
-5-5 Test Equipment
........................................................................... 5-32
5-6 System Troubleshooting .................................................................. 5-37
5-7 Test Point Identification ................................................................... 5-42
9-1 Internal DVM Inputs ....................................................................... 9-3
22-1 IEEE-488 Interface Controllable Functions . .. . . .. . . .. . . . . . . .. . . . . .. . .. . . . . .............. 22-2
22-2 Command Categories . . . .. . . . . . . .. . . . . .. . . .. . . .. . . . .. .. . . .. . . . .. . . . . .. . . . .............. 22-4
22-3 Programming Commands ................................................................ 22-5
22-4 Terminal Mode ASC II Characters Printable Characters................... . ............. 22-12
22-5 Error Messages . .. . . . . . . . .. . . . . . .. . . . . .. . . .. . . .. . . . . .. . . . . . .. . . .. . . . .. . . . ............. 22-14
22-6 SRQ Data . . . .. . . . . . . .. . . . . .. .. .. . . .. . . . . .. . .. . . . . . .. . . . . .. . . . .. . .. .. . . . . .............. 22-14
22-7 Code Synthesizer Programming Considerations .. . . . . . . .. . . . . .. . . .. . . . . .. . ............. 22-15
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FOREWORD
1. SCOPE OF MANUAL
This manual contains information for the installation, operation, and maintenance of the Communications
System Analyzer.
2. PURPOSE AND USE
The Motorola Communications System Analyzer is a portabletest instrument, designed specifically for the
service and
monitoring of communications equipment. Its functions supersede those of a Service Monitor,
expanding the features and capabilities
to the point wherein servicing is achieved with a single instrument,
rather than a host
of separate equipment.
The
R2001 A is the standard Communications System Analyzer. The R2002A Analyzer, which contains the
IEEE-488 Standard interface control bus, is also available. Programming for the R2002A is covered in Seeton
22 of this manual.
The Analyzer improves a technician's efficiency and accuracy and reduces servicing time.
The
Communications System Analyzer performs the functions of signal generation, signal monitoring, and
the tests normally associated with the devices listed below.
• Spectrum Analyzer
• Duplex Generator
•
Modulation Oscilloscope
• Frequency
Counter
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AC/DC Digital Voltmeter
•
RF Wattmeter
• General Purpose Oscilloscope
•
Multi-Mode Code Synthesizer
• SINAD Meter
• Sweep Generator
The Analyzer meets
the shock and vibration requirements of EIA test RS1528, the same specifications met
by
Motorola mobile radios. This minimizes failures when the instrument is used in a mobile service van, and
means it is
as tough as the radios it services.
The
Communications System Analyzer is designed to be serviced quickly and easily, should a breakdown
occur.
The majority of the circuitry is on seven modular plug-in circuit boards which have built-in test points
that aid in isolating the problem to a specific board. Simple plug-in replacement gets the instrument back in
service.
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Figure 1-1. Communications System Analyzer
1-0