Motorola R-20010 User manual

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COMMUNICATIONS
SYSTEM ANALYZER R-20010
Motorola, Inc. I '.188
All R ig ht Rc crvc:d
Printed in U .. A.
Maintenance Manual
t1i\ Motorola Test
'f.:)} EquipmentProducts
1313 E. Algonquin Rd.
Schaumburg, IL 60196 RLN4073A
12/l m6-PH I

TABLE OF CONTENTS
Paragraph Page
1.1
1.2
FOREWORD
SECTION
1. INTRODUCTION
DESCRIPTION
..... . . ... . . ....... ...... .. ..... . .. .. .. .. .... . .............. .
MAJOR ASSEMBLIES . ...... . ...... ... .. .... ... . ......... . . . .. .. ........... .
SECTION 2. SYSTEM THEORY OF OPERATION
1-1
1-8
2.1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 SYSTEM CONTROL
... ...................... ... ....... ... . . . ..... . . ......... 2-1
2.2.1 Processor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2.2 Process or Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2.3 Control Busses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2.4 IEEE Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.3 GENERATE MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.3.2 Frequency Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3.3
RF Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3.4 Wideband Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3.5 Step Attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3.6 Input/Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.4 WATTMETER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.5 MONITOR MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.5.2
RF Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.5.3 Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.6 DUPLEX GENERATOR (STANDARD AND ENHANCED)
.... . ......... . ................ 2-6
2.7 CODE SYNTHESIZER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.8 FREQUENCY COUNTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
-7
2.9 DIGITAL VOLTMETER (DVM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.10 DISTORTION/SINAD METER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2.
11 OSCILLOSCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3.1
3.2
SECTION 3. ALIGNMENT PROCEDURE
INTRODUCTION .... . ... ...... . ... .. .......... . ... .. ... .. . ................. .
3.1.1 Test Equipment Required
...... .. ..... . ........ . ..... . ... . .. .. ... . .... .
3.1.2 Preparationfor Alignment
............. .... . ........ .. ... ... .... . . .. ... .
BASIC ALIGNMENT PROCEDURE .. ... . ...... . . . . .. . . ...... . . . .. .. ...... . ... . . .
3.2.1 Low Voltage Supply
.......... ....... .......... .... . ... ..... ......... .
3.2.2 CRT Intensity Bias
.. . . ..... ... . ... .. .... ......... . . . ... .... . . ....... .
3.2.3 CRT Intensity Balance
........ . .. . ..... . .. ....... .. ....... ...... .. . ... .
3.2.4 CRT Astigmatism and Geometry . .
.. .. .. . . . ................ ... . . .. . .... · ~ ·
3.2.5 CRT Vertical Centering and Trace Rotation ................ ........ ... : .... :.
3.2.6 CRT Horizontal Centering ..... . .. . .. ... ..... .. ................. ·. ...... .
3.2.7 CRT Horizontal Gain
...... . .... ........................ ... ... .. ...... .
3.2.8 CRT Vertical Gain .
.... . . . ...... . ... ....... .. ............. ... ........ .
3.2.9 Vertical Input Gain.
.... .. ......... .... ...... ...... ... . ........... . ... .
3.2.1
0 DVM Zero ....... . ........ . ...... .. ... ...... . .... ................. .
3.2.
11 Character Generator .... . . ..... .... ...... . . . ...... . ..... . ............ .
3.2.12 Spectrum Analyzer Centering
................... ..... ... . . .... . .. ..... .. .
3.2.13 Horizontal Timebase
.. ... . ........................ ... .. . ... .. .... . . .. .
3-1
3-1
3-1
3-1
3-1
3-1
3-1
3-3
3
-3
3-3
3-3
3-4
3-4
3
-5
3-5
3-5
3
-6

TABLE OF CONTENTS (Cont)
Paragraph Page
3.3 EXTENDED
ALIGNMENT PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
4.1
4.2
4.3
6.1
6.2
7.1
7.2
8.1
8.2
3.3.1
DVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.3.2 Distortion/SINAD Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-8
3.3.3 Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3. 3A RF Synthesizer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.3.5 Frequency Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
0
3.3.6 Duplex Generators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.3.7 Wideband Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.3.8
Wattmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 19
3.3.9 Scope Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3.3 .10 Cathode Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 19
SECTION 4. SYSTEM CHECKOUT AND TROUBLESHOOTING
INTRODUCTION
.... . ..... . . . .. .... .... .. ...... .. . ............... ....... ... .
SAFE HANDLING OF CMOS INTEGRATED-CIRCUITS DEVICES .. . . ................... .
CHECKOUT AND TROUBLESHOOTING PROCEDURES . . ..... .... . ........ ......... .
SECTION 5. SYSTEM WIRELIST AND PARTS LIST- SYSTEM MOTHERBOARD (A19)
. (See LIST OF TABLES)
SECTION 6. HIGH-VOLTAGE POWER SUPPLY (A1)
DESCRIPTION . . .......... ........ . . ............ . .................... . ... . .
THEORY OF OPERATION ... ... ................ .. .... . .. . .... . . ... . ... ....... .
6.2.1 Voltage Regulation Circuit
.. .. .. .. ................... . .... ..... ........ .
6.2.2 Multipliers
...... .. .... . .... . .. .... ... ... . .. .. .... ........ . ...... . .. .
6.2.3 Intensity
Modulator .............. .. .................... . ............. .
6.
2.4 Focus Modulator . . ....... . .... .... . ... .. ........ . .... ..... . ......... .
6.2.5 Transient Protector(A1A2)
....... . ........ . ......... . ........ . . ..... .. .
SECTION 7. SCOPE AMPLIFIER BOARD (A2)
DESCRIPTION . . . . . ......... . ........................ . ......... ..... ..... . .
THEORY OF OPERATION .... . . . .................. . ...... .. . . . . ......... . .... .
7.2.1 Deflection Amplifiers
................. . . . .... .. ... . . . ................. .
7.2.2
Hor izontal Timebase Generator ... .. ..... .... .. .. .. . . . . .. . . .. .. ... .... .. .
7.2.3 Horizontal Switching
.. . ... .. .. .... ...... ... . ..... . . .. ........ .... .. . . .
7.2.4 Z-Axis
Modulator . .. ... ... . ... .. ............... . . . .. .. ... . . ...... . . . .
7.2.5 Intensity Control
.. ..... .. . .. ... ....... .. ...... . .... . ............ . ... .
7.2.6 Focus Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2.7
Ast i gmatism . Geometry, and Trace Rotation . . ....... ... . . . . ............... . .
SECTION 8. LOW-VOLTAGE POWER SUPPLY (A3-A6)
DESCRIPTION ........ .. .... . . . .. ... ... ........... . ......... .... .. .. .... . . .
THEORY OF OPERATION ........................ .. ... .... .. . .... ........ . . .. .
8.2.1
Battery Charger Board (A3) . ...... ... .. . ....... . .. .... . ...... ..... .. ... .
8.2.2 Control
Board (A4) ...... .. .. ..... .... .. ............ . ....... .... .. . .. .
8.2.3
Output Board (AS) . . .. ... . .... ... ..... ...... ... .. ........ . . ...... . . . . .
8.2.4
Switcher Board (A6) .... . . .. . ........................ .. .... . ......... .
8.2.5 Rear Panel
..................................... . .. . ... . ..... . . . .. . .
ii
4-1
4-1
4-2
6-1
6-1
6-1
6-1
6-1
6-1
6-1
7-1
7-1
7-1
7-1
7-1
7-1
7-2
7-2
7-2
8-1
8-1
8-1
8-1
8-3
8-4
8-4

TABLE OF CONTENTS (Cont)
Paragraph Page
9.1
9.2
SECTION 9. SCOPE/DVM CONTROL BOARD {A7)
DESCRIPTION ... .. ..... ... ... . ..... . . .. ... . . . ..... .. ..... . . .. . . ... .. . .... .
THEORY OF OPERATION. .. ......... . ........ .. ........ . .. . .. . ........ . .... . .
9.2.1 Scope Vertical Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.2 Dual-Display Control . .
.......... . ...... . ........ . ....... .. .. .. .... . .. .
9.2.3 Scope Horizontal Control. .
........... . .. . .... . ......... . . . .. . .. . ...... .
9.2.4 Synthesizer Sweep Control
............. . . .......... . .. . ... . ... . ... . . . . .
9.2.5 Scope Z-Axis Control
.... .. .. ... .. . ...... . .. . .................. . . .. .. .
9.2.6 Modulation-Display Control
... ................ . ......... . ...... . .. ... .. .
9.2.7 Peak Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.8 DVM Control .
..... .. . .... . .... . ... . .. . . . . .. ... . ... . ... ............ .
9.2.9 External DVM/Distortion Control
.. . . . . . . .. .. ... . . . . ... . . . .. . .. . .. . . . . . .. .
9.2.1
0 Distortion Measurement ..... . . . . ... . .... . ............. . .. . .. . . .... . .. .
9.2.
11 External DVM Measurement .. . ... . .... . ..... . . ... . ... .. ....... . ....... .
9.2.12 Audio Amplifier and Alarm Generator . .
.. . .... . ... . .......... . ... . ........ .
9.2.13 Board Control
.. . . .. ... .. . .. .... . .. .. .. . .......... . ..... . . .. . . ... . .. .
SECTION 10. RECEIVER BOARD {AS)
9-1
9-1
9-t
9-1
9-1
9-2
9-2
9-2
9-2
9-2
9-3
9-3
9-3
9-3
9-3
10.1 DESCRIPTION .... . .. . . . ..... . . .... ........ ... .... . ....... .. .. ... .. . ..... .. 10-1
10.2 THEORY OF OPERATION.
.. .... . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
10.2.1 Linear IF Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
10.2.2 Logarithmic Amplifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
10.2.3 FM /SSB/WB Signal-Present Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
10.2.4 Baseband Audio-Processing Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
10.2.5 Digital Control and Power Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
SECTION 11. RF SYNTHESIZER MODULE (A9)
11 .1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
11 .2 THEORYOFOPERATION ... . .. . .. . . .. ... .. ....... . .. . .. . . .... .... .. . .. . . .. . . . 11 -1
11 .2.1 Reference and Control Board (A9A 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 -1
11 .2.2 310 to 440-MHz Loop Board (A9A2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 -2
11 .2.3 Output Board (A9A3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
11 .2.4 60.5-MHz Loop Boa' rd (A9A4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 -3
11 .2.5 GHz Loop Board (A9A5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 -3
11.2.6 640-MHz Loop Board (A9A6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 -4
11 .3 SYNTHESIZER MOTHERBOARD (A9A7) .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 -5
SECTION 12 . AUDIO SYNTHESIZER BOARD (A10)
12.1 DESCRIPTION .... . . ..... . ... ... ..... . .. . ... . ...... . .. .. . ..... .. ...... .. ... 12-1
12.2 THEORY OF OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
12.2.1 Audio Synthesizer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
12.2.2 DPL Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
12 .2.3 1-kHz Tone. ... . ...... . .. . ......... . . . .. .. . .... . ........... . ... .. . . . 12-2
12.2.4 Internal Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2
12 .2.5 External Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2
12.2.6 Modulation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2
12.2.7 Board Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2
iii

TABLE OF CONTENTS (Cont)
Paragraph
Page
SECTION 13. PROCESSOR INTERFACE BOARD (A11)
13.1 DESCRIPTION . ..... . .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
13.2 THEORYOFOPERATION
........... ..................... .. ....... .. .... .. . .. . 13-1
13. 2.1 System Control-Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
13.2.2 Digital Voltmeter (DVM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
13.2.3 Frequency Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2
13
.2. 4 Board Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-3
SECTION 14. PROCESSOR BOARD (A 14)
PART 1. 01-P22140E001
14.1 DESCRIPTION ... . .... . .... . ... ..... ... ... . . .... . .. ... .. . . . . . . . . . . . . . . . . . . . 14-1
14.2 THEORY OF OPERATION .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1
14.2.1 Microprocessor. .... . ..... .. .... . ..... ... . . ... . . . . . . . . . . . . . . . . . . . . . . . 14-1
14.2.2 Memory ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1
14.2.3 Input/Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2
14.2.4 Character Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2
PART2. 01-P29050H001
14.3 DESCRIPTION ....... . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3
14.4 THEORY
OF OPERATION .. . .. .. ... . .... .......... .. ..... .. . .. .... .. .. . ... . . . . 14-3
14.4.1 Microprocessor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3
14.4.2 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3
14.4.3 Input/Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3
14.4.4 Character Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-4
14.4.5 DTMF Encode/Decode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-4
14.4.6 Printer Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-4
SECTION 15. FRONT-PANEL INTERFACE BOARD (A15)
15 .1 DESCRIPTION .... ... ................. . ......... . ............... . . . .. .. .... 15-1
15.2 THEORY
OF OP ERAT ION . ....................... ... ....... .... .. ... . ...... . . . 15-1
15.2.1 Processor-Control Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1
15.2.2 Analog Interface .
... .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-5
SECTION 16. FREQUENCY-STANDARD INTERF-ACE BOARD (A16)
16.1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
16.2 THEORY OF OPERATION
.............. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
16.2.1 Internal Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
16.2.2 External Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
SECTION 17. RF INPUT MODULE (A17)
17.1 DESCRIPTION .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1
17.2 THEORY
OF OP ER ATION. . . . .. ........ . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1
17.2.1 Wattmeter Board (A17A1) ........... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1
17.2.2 Wideband Amplifier Board (A17A2)
.. ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-2
17.2.3 Duplex Generator Board (A17A3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-3
17.2.4 Enhanced Duplex Generator Board
(A1 7A3) .. .... . ... .. . . . . . . . . . . . . . . . . . . . . . 17-5
SECTION 18. FRONT PANEL ASSEMBLY (A18)
18.1 D ESC RIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-1
18.2 CONTROLS, S
WI TC H ES AND L EOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-1
18.3
DECODING FOR DISPLAY, FU NCTION AND MODULATION LEO s. ...................... 18-4
iv

TABLE OF CONTENTS (Cont)
Paragraph
Page
SECTION 19. BATTERY ASSEMBLY
19.1 DESCRIPTION . .. ...... . . . . . . .. .. . .. . ... . . .... . .. . . .. ... . . . .... . .. . ... . . . .. 19-1
19.2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 -1
19.3
OP E RATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-2
SECTION 20. CELLULAR TELEPHONE TEST OPTION
20.1 DESCRIPTION . .. .... . .... ......... . . .. . . . . .... . .... . . .. . ....... . . . .... .... 20-1
20.2 THEORY
OF OPERATION . . . .. .. . .. . ..... . . . . . . . . . . . . . ... . . . .. . . .. .. . .. ... .... 20-1
20.2.1 Transmitted Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 -1
20.2.2
Received Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
20.2.3 Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
20.2.4 Modulati on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
20.2.5 10- KHz Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
20.2.6 Manual-Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
SECTION 21. IEEE/REMOTE INTERFACE OPTION
PART 1. IEEE INTERFACE
21 .1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -1
21.2 THEORY
OF OPERATION .. ... .. . ....... . .... .. . . .. ... . . ..... . .. . ... .. . ....... 21 -1
21 .2.1 IEEE Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -1
21.2.2
RF-Level Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1
21 .2.3 Modulation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -1
21 .2.4 Address-Decode and Control-Latch Circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -1
21 .2.5 Multipurpose Input/Output and Relay Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1
PART2. REMOTEINTERFACE
21.3 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -2
21.4 THEORY
OF OPERATION ..... . . ... . .. . ... . .. . . . . . . . ... . ... . .. .......... . .... . 21 -2
21 .4.1 IEEE Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -2
21.4.2
RS -232 Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -2
21.4.3
RF - Level Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -2
21 .4.4 Modulation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -2
21.4.5 Address-Decode
and Control-Latch Circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-2
21.4.6 Multipurpose Input/Output
and Relay Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 -2
SECTION 22. SECURE COM OPTION
22 .1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1
22 .2 THEORYOFOPERATION. . . . . . .. . . . . . . .. . . . . ... .. . . .. . .. . . ... ...... .. .. . . . . .. 22 -1
22.
2.1 Transmit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 -1
22.2.2
Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1
22 .3 ENCODER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1
22. 3.1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1
22 .3.2 Encryption Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1
22.3.3 Encoder Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1
22 .4 DECODER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 -2
22 .4.1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 -2
22.4.2 Decryption Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-2
22.4.3 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-2
22 .5 PROGRAMMER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-2
v

TABLE OF CONTENTS (Cont)
Paragraph Page
SECTION 22. SECURE COM OPTION (Cont)
22.6 MEASUREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-2
22.6.1 Bit Error Rate Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-2
22.6.2 Deviation Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-2
22.6.3 Une Level Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-3
22 .6.4 Oscilloscope Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-3
22.7 FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-3
22 . 7.1 End ofMessage (EOM Signaline Test) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-3
22.7.2 Self Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-3
22 .7.3 Dual Code Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-3
22 .7.4 Plain Text Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-4
22.7.5 PrinterInterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-4
SECTION 23. TRUNKED RADIO TEST
23.1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1
23.2 THEORY OF OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1
23 .2.1 Transmitted Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1
22.2.2 Received Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1
23 .2.3 Data Detect Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1
23 .2.4 Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1
23 .2.5 RF Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1
vi

Rgure
1
1-1
1-2
1-3
1-4
1-5
1-6
LIST OF ILLUSTRATIONS
FOREWORD
Repair Request Form
SECTION 1. INTRODUCTION
Two-Tone (A/B) Sequence Timing . .. . ... . . .. . . . . . .. .... .. ... .. . . . . .. .. . . .. . .. .
5/6 Tone Sequence Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
MTS SequenceTiming ..... ... . . .. . .. ........... . . ... . .. . .. . ...... . . . .... . .
2805 Sequence Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Communications System Analyzer -
Top View , CoverRemoved ... . .. . .... . ... . ...... .
Communications System
Analyzer- Bottom View, Cover Removed .. . ......... ..... . . .
SECTION 2. SYSTEM THEORY OFOPERATION
Page
xiii
1-5
1-6
1-6
1-6
1-9
1-9
2-1 Communications System Analyzer -Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-
11
2-2 Communications System Analyzer -Bus Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 12
2-3 Generate Mode -Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 13
2-4 Wattmeter -Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2-5 Monitor Mode -Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2-6 RF Input Module -Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-
16
2-7 Code Synthesizer-Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 16
2-8 Frequency Counter -Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
2-9 DVM/Distortion Analyzer -Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2-1
0 Oscilloscope -Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-
10
3- 10a
3- 11
3- 12
3- 13
3- 14
5-1 a,b
5-2 a,b
5-3
5-4
5-5
6-1
6-2
6-3
6-4
6-5
SECTION 3. ALIGNMENTPROCEDURE
Control Board (A4) -Alignment Points
.... . . ... .... . .... . . .... . . . .. .. .. . .. ... . .
Scope Amplifier Board (A2) -Alignment Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front-Panel Interface Board (A15) -Alignment Points . .... . . . . . . . ..... . . . . .... .... .
Scope/DVM Control Board (A7)- Alignment Points . . .. . . ...... . .. .. . . .. . ... . .. .. . .
Processor Interface Board (A11)-Alignment Points . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. .
Receiver Board (AS) -Alignment Points .....
.. . .. . .. . ..... . ....... ..... .... ... .
60.5 MHz Loop Board
(A9A4)- Alignment Points . ... ........ .. ..... .. ... .. . . . ... .
GHz Loop Board -Alignment Points. .
... . .. . . .. ... . . . . ... . ..... . . . .. ... .... .. .
Frequency Standard Interface Board -Alignment Points . .
........... ... .. . . ...... . .
Duplex Generator Board (A 17 A3) -Alignment Points .. ..... . ...................... .
Enhanced Duplex Generator Board
(A 17 A3) -Alignment Points . . . . . . . . . . . . . . . . . . . . . . .
Wideband Amplifier Board -Alignment Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wattmeter Board -Alignment Points . .
............... ..... ...... . . . ...... . ... .
Scope Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
High voltage PowerSupply Board -Alignment Points .. . . . . .. ... . ....... .. . . . ... .. .
SECTION 5. SYSTEM WIRELIST AND PARTS LIST- SYSTEM MOTHERBOARD (A19)
System Motherboard(A19) -Printed Wiring BoardAssembly and Parts List . .. . ....... . . .
Chassis-Assembly and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subsystem -Assembly and Parts List
... .. . .. . . . ..... .. ..... .... . .... ... ... . . .
CRT-Assembly and Parts List . .
.. . ... .... . .. . .. . . . .............. . .. .. . . .. . . . .
Front Cover-Assembly and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6. HIGH-VOLTAGE POWER SUPPLY (A1)
Block Diagram ...... .... .... . .. . .. . . . ...... .. ...... ... . ............ . .. . . .
Schematic
........ ... .. . .. .. . .... ....... . ......... .... ..... ............ .
Pri nt ed Wir in g Board Assembly and Parts List ........ ..... ....... ......... . ...... .
Assembly and Parts List ....... . .. .. .. ..... ... .. . ... .......... . .. . . .. . .. . .. .
Transient Protector (A1
A2 ) - Assembly and Parts Li st ....................... . .. . .. .
v
ii
3-2
3-3
3-4
3-5
3-7
3-12
3- 13
3-14
3-15
3-16
3-
16a
3-17
3-18
3-19
3-20
5-95
5-97
5-98
5-99
5-100
6-3
6-4
6-5
6-6
6-7

Figure
7-1
7-2 a,b
7-3
8-1
8-2
8-3
8-4
8-5
8-6
8-7
8-8
8-9 a,b
8-10
8- 11
8-12
9-1 a,b
9-2 a-d
9-3
10-1 a
10-1 b
10-1 c
10-1 d
10-1 e
10 -2 a-e
10-3 a,b
11 -1
11 -2
11-3 a,b
11 -4
11 -5
11 -6
11 -7
11 -8
11 -9
11 -10
11 - 11
11 -12
11 - 13a .b
11 -14
11 -15
11 - 16
11 -1 7a .b
LIST OF ILLUSTRATIONS (Cont)
SECTION 7. SCOPE AMPLIFIER BOARD (A2)
Block Diagram ......... .. ... .... .. ... . ...... · .......... .. . ............... .
Schematic (Sheets 1 and 2)
................................................. .
Printed Wiring Board Assembly and Parts List
........... ... ..... . ....... .. ....... .
SECTION 8. LOW-VOLTAGE POWER SUPPLY (A3-A6)
Page
7-3
7-4
7-7
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-S
Battery Charger Board (A3) -Schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Battery Charger Board
(A3)- Printed Wiring Board Assembly and Parts List . . . . . . . . . . . . . . 8-7
Battery Charger Board (A3) -Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Control Board (A4) -Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Control Board (A4) -Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 0
Control Board (A4) -Printed Wiring Board Assembly and Parts List
.............. ·. . . . . . 8- 11
Output Board (AS)- Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13
Output Board (AS) -Printed Wiring Board Assembly and Parts list (Sheets 1 and 2) . . . . . . . . 8-15
Switcher Board (A6) -Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
Switcher Board (A6) -Printed Wiring Board Assembly and Parts list . . . . . . . . . . . . . . . . . . . 8-19
Switcher Board (A6) -Assembly and Parts
list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
SECTION 9. SCOPE/DVM CONTROL BOARD (A7)
Block Diagram (Sheets 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Schematic (Sheets 1 thru 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-11
SECTION 10. RECEIVER BOARD (AS)
Receiver Board (AS) -Block Diagram ............... . .......... . ........ . .... . .
Linear IF
Amplifier- Block Diagram .................... . ......... ........... . .
Logarithmic Amplifier -Block Diagram
.. . ... . .. .. ......... .. .... . . ...... .. . ... .
FM/ SSB / WB Signal-Present Detectors -Block Diagram .......................... . .
Baseband Audio-Processing Circuits -Block Diagram
....... .. .................... .
Schematic (Sheets 1 thru 5) .
.. ....... ... ........................ . ........... .
Printed Wiring Board Assembly and Parts
list (Sheets 1 thru 4) ... .... ...... . ..... . .. . .
SECTION 11. RF SYNTHESIZER MODULE (A9)
RF Synthesizer Module (A9) -Block Diagram ... . .................... . ...... .. .. .
RF Synthesizer Module (A9) -Assembly and Parts list ........... . . . . ...... ....... .
Reference and Control Board (A9A
1) -Block Diagram ........ . ........ . ....... .. .. .
Reference and Control Board (A9A
1) -Schematic .............. ... . ...... . .. ..... .
Reference and Control Board (A9A
1) -Printed Wiring Board Assembly and Parts list .. .. .. .
310 to 440-MHz Loop Board (A9A2) -Block Diagram ................... . ......... .
310 to 440-MHz Loop Board (A9A2)- Schematic ...................... . ..... . .. . .
310 to 440-MHz Loop Board (A9A2)- Printed Wiring Board Assembly and Parts List. ... ... .
Synthesizer Output Board (A9A3) -Block Diagram
.. .... . ........... . .... ........ .
Synthesizer Output Board (A9A3) -Schematic
......... .... .................. . .. .
Synthesizer Output Board (A9A3) -Printed Wiring Board Assembly and Parts
list ........ .
60.5-MHz Loop Board (A9A4)- Block Diagram ... . .............................. .
60.5-MHz Loop Board (A9A4)- Schematic (Sheets 1 and 2) . . ....... . ...... . ....... .
60.5-MHz Loop Board (A9A4) -Printed Wiring Board Ass
em bly and Parts List ........... .
GHz Loop Board (A9A5) -Block Diagram
.............. . .. . .. . ....... .. .... . . . . .
GHz Loop Board (A9A5) -Schematic
.................. . ...... . ............ .. . .
GHz Loop Board (A9A5) -Printed Wiring Board Assembly and Parts
list (Sheets 1 and 2) . .. .
vii i
10-7
10-8
10-9
10-9
10 -10
10 - 11
10 -17
11 -7
11-8
11 -9
11 -10
11-11
11-13
11 -14
11 -15
11 -17
11 -18
11 -19
11 -21
11 -22
11 -25
11 -27
11 -28
11 -29

LIST OF ILLUSTRATIONS (Cont)
Figure Page
11 - 18 640 - MHz Loop Board(A9A6) -Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 31
11 -19 640 - MHz Loop Board (A9A6) -Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 32
11 - 20 640 - MHz Loop Board (A9A6) -Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . 11 - 33
11 - 21 a,b Synthesizer Motherboard (A9A7) -Printed Wiring Board Assembly and Parts List (Sheets 1
and
2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 35
SECTION 12. AUDIO SYNTHESIZER BOARD (A10)
12 -1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 -3
12 -2 a-c Schematic (Sheets 1 thru 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 -4
12-3 Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 -7
SECTION 13. PROCESSOR INTERFACEBOARD (A11)
13 -1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 -5
13 -2 a-c Schematic(Sheets 1 thru 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 -6
13 -3 Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 -9
14-1
14-2
14-3
14-4
a-e
14-5
14-6
14-7 a-f
14-8
SECTION 14. PROCESSOR BOARD (A14)
Memory Map . . . . . . ... ..... . .. . ... . ... .. . . ...... .... ... ... .... . . .. .. . . . . .
Memory
Map .. . ... . . . .. . . .... . .... .. ... ....... ..... . . . . . . . . . ... ..... . . . .
Block Diagram (01 -P22140E001) Part 1 . .. ... . . ... . ... . .... .... ...... . .... . ... . .
Schematic (Sheets 1
thru 5) ... . .. . ... .......... .. ....... .. . .... ............ . .
Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . . . . . .. ............ . . .. . .
Block Diagram (01-P29050H001) Part 2 .. . ...... . .. .. .. . .... .. .. . ....... .... ... .
Schematic (Sheets 1 thru
6) .... . ...... .. .. . . . . . ... ..... .. . . . .... . . . . ... . .... .
Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... .
SECTION 15. FRONT-PANEL INTERFACE BOARD (A15)
14-1
14-3
14-5
14-6
14-11
14-13
14 - 14
14-20
15-1 Block Diagram ................ . . .. .. ...... .... . ...... ........ .... ~ . . . . . . . 15 -7
15-2 a,b Schematic (Sheets 1 and 2) .
..... ........ . ....... ... ......... . , . ... ... ..... , . 15 -8
15-3 Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-11
SECTION 16. FREQUENCY-STANDARD INTERFACE BOARD (A16)
16 -1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -1
16 -2 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -3
16 -3 Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -5
16 -4 Assembly and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -6
17 -1
17-2
17 - 3a
17 - 3b
17-4
17 -5
17 -6
17-7
17 -8
17 -9
17- 10
17- 11
17-12
SECTION 17. RF INPUTMODULE (A 17)
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
InterconnectDiagram ........... . ........ . ..... . .. ... ..... .. ... ........ .. . .
Assembly and Parts List
....... . ........... . . ...... . .. . . ..... .......... ... . .
RF Input Flex Standard -Printed Wiring Board Assembly and Parts List
..... . ....... ... .
RF WattmeterBoard
(A17A1)- Block Diagram . . . .. .. .. .......... ...... ...... . .. .
RF WattmeterBoard (A17A1) -Schematic
..... ..... . . ....... ......... ....... .. .
RF WattmeterBoard (A
17 A1) -Printed Wiring Board Assembly and Parts List .. ...... . . . .
Wideband Amplifier Board (A17A2) -
Block Diagram ............ ..... . ....... . .... .
Wideband Amplifier Board (A
17 A2) -Schematic . . . . ..... . ....... . . . . ... . .. .. ... . .
Wideband Amplifier Board (A17A2) -Printed Wiring Board Assembly and Parts List.
... .... .
Duplex Generator Board (A17A3) -Block Diagram
... ........... .... . .. .. .. .. . . .. .
Duplex Generator Board (A17A3) -Schematic . . . . .
..... . . . ................... . . .
Duplex GeneratorBoard (A17A3) -Printed Wiring
Board Assembly and Parts List .. . . . . . .. .
ix
17-9
17 - 10
17 - 11
17- 12
17 - 13
17- 14
17 - 15
17- 17
17 - 18
17 - 19
17-21
17-
22
17-23

Figure
17-13
17-14a-c
17-15
18-1 a,b
18-2 a
18-2 b
18 -2 c
18-2 d,e
18-2 f
18 -3
18-4
19-1
19-2
19-3 a,b
LIST OF ILLUSTRATIONS (Cont)
Enhanced Duplex Generator Board (A 17 A3) Block Diagram ...... . ...... .... . ....... .
Enhanced Duplex Generator Board (A
17 A3) Schematic Diagram ..... ........ ......... .
Enhanced Duplex Generator Board (A
17 A3) Assembly and Parts List . . . .. .... .. . .... .. . .
SECTION 18. FRONT PANEL ASSEMBLY (A18)
Schematic .......... ... .......... . ... ....... .. .... . . ............. . . . . .. .
Front
Panel- Photo .. . . . . .. ... .. ... . ... . ......... .. . .. . ... ...... . ........ .
Inside Front Panel -Photo ......... . .. . . . .. ... ...... ....... . . . . . . . ......... .
Inside Front Panel -Drawing .... . . .. ... . ..... . .. ......... ...... .. . ......... .
Front Panel Left and Right Flexes -Printed Wiring Board Assemblies and Parts List
....... .
Switch Interconnect Board (A18A2) -Printed Wiring Board Assembly and Parts List . . ..... .
Display Board (A 18A 1) -Schematic ............. . . .... ....................... .
Display Board (A18A 1) -Printed Wiring Board Assembly and Parts List ... .. .. .. . .... . . .
SECTION 19 . BATTERY ASSEMBLY
Mounting Detail. .. . . ...... .. ...... .... .... ......... . ... ... .... ........... .
Schematic
...... .. . ...... . ... . ................. . ...... ... ..... . ........ .
Printed Wiring Board Assembly, Parts Location Detail and Parts List.
.......... . ........ .
SECTION 20. CELLULAR TELEPHONE TEST OPTION
Page
17-25
17-
26
17- 29
18-5
18-6
18-7
18-7
18-8
18-9
18-10
18- 11
19-1
19-2
19-3
20-1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-3
20-2 a, b Schematic (Sheets 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-4
20-3 Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-7
21-1
21-2 a, b
21-3
21-4
21-5 a-f
21-6 a,b
22-1
22-2 a-g
22-3
SECTION 21 . IEEE/REMOTE INTERFACE OPTION
PART 1. IEEE INTERFACE
Block Diagram ..... ... . . ......... .... . .. ...... . ......................... .
Schematic(Sheets 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. .
Printed Wiring Board Assembly and Parts
Ust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Input Module, IEEE/Remote Interface
Options- Assembly and Parts Ust . . . . .. . ...... .
PART 2. REMOTE INTERFACE
Schematic(Sheets 1 and 6) .. . .. .... . ....... .. ..... . ............... . .... . . . . .
Printed Wiring Board Assembly and Parts
Ust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 22 . SECURE COM OPTION
Block Diagram ................ . .. ...... . . .............. . . .. ...... . . . ... . .
Schematic (Sheets 1 thru 7)
.... ..... .. ....... ......... ... . ... .. .... ....... .. .
Printed Wiring Board Assembly and Parts
Ust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 23. TRUNKED RADIO TESTOPTION
21-3
21-4
21 -7
21-9
21 - 11
21-17
22-3
22-4
22-
11
23-1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-3
23-2 a-e Schematic (Sheets 1 thru
7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-4
23-3 Printed Wiring Board Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
-1 1
X

Table
1
-1
1 -2
1-3
1-4
2-1
2-2
2-3
2-4
2-5
2-6
3-1
3-2
LIST OF TABLES
SECTION 1. INTRODUCTION
Physical Characteristics ............. . .... .. .. ... ... ... .. . . .. . .. . ... .. . ... . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inpu t/Output Characteristics .... ..... ... .. .. . . . .. . . ... .. .. .... . .. .. . . ....... .
List
of Subassemblies ........ . ..... . ...... ..... . . . . . . . . . . . .. . .. . . ..... . .. . .
SECTION 2. SYSTEM THEORY OF OPERATION
AF BUS Control .... ..... ... . . .. ... .... . .. ........ . .. ........ . ... . . . . ... . .
RF
BUS Control . . . . ... .... . .... .. ... . ... . . . ..... .. .. .. .. . . .. . ... .. ... . .. .
MOD Control . . . ...... . ... .. .... .. . . .... . . . .. .. .. ...... . . . .. ... . .. .... .. .
Receiver Control . .
................. . .. . ... .. ..... . . . ... . . . . . . . . ... . .. . ... .
Duplex Control
... . . .... ....... ........ . . .. . . ....... .. . . . . . .. ............ .
Receiver Filters
......... . ....... . .. . ..... . .. . . .. ... .. ... .. . .. . ... . . . .. ... .
SECTION 3. ALIGNMENT PROCEDURE
Basic Test Equipment Required ........ ... ... ... ... . ... . . . . .... ... ..... .... . . .
Extended
Test Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4. SYSTEM CHECKOUT AND TROUBLESHOOTING
Page
1 -1
1-1
1-7
1-8
2 -2
2-3
2-3
2-3
2-3
2-3
3-1
3 -1
4-1 Test Equipment for Checkout and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 System Checkout and Troubleshooting Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-3 Test-Point Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
SECTION 5. SYSTEM WIRELIST AND PARTS LIST- SYSTEM MOTHERBOARD (A19)
5-1 System Motherboard Wirelist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5-2 a-r System Wirelist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-59
6-1
8-1
8-2
9-1
SECTION 6. HIGH-VOLTAGE POWER SUPPLY (A1)
Wirelist tor the High-Voltage Power Supply ...... . .... . ........... .... .... . ...... .
SECTION 8. LOW-VOLTAGE POWER SUPPLY (A3-A6)
Control Logic Functions. . .... . ... . ... . .. . ... . .... ... . .. . ..... ....... . ...... .
Output Voltages . .... . .... . . ... ....... ... . .. . ..... . . .. . . ... . .. .. . . ... .... .
SECTION 9. SCOPE/DVM CONTROL BOARD (A7)
Internal DVM Inputs . .. . . . . ............ . . ............ . .. . ....... .. .. . ..... .
SECTION 10. RECEIVER BOARD (AB)
6-2
8-3
8-4
9-3
1 0-1 Functions of Digital Control Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
10-2 Low-Pass Filter -Control- Bit Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
10-3 High-Pass Filter -Control-Bit Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
1 0-4 Modulation-Select -Control-Bit Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
SECTION 15 . FRONT-PANEL INTERFACE BOARD (A15)
15-1 AF ADD and DATA BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-2
15 -2 Decoding tor Display, Function, and Modulation LEOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 -2
15 -3 Range-Attenuator Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3
15 -4 Input Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3
15 -5 RF-Attenuator Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 -3
15-6 Functions of Miscellaneous Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 -4
15-7 Sweep-Select Encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 -4
xi

LIST OF TABLES (Cont)
Table Page
SECTION 17. RF INPUT MODULE (A 17)
17-1 Switch Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-4
17-2 Switch Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-6
17-3
RF Input Module -Wirelist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-7
SECTION 18. FRONT PANEL ASSEMBLY
18-1 Controls, Switches and LEDs on the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 -1
18-2 Decoding for Display, Function, and Modulation LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-4
xii

1. SCOPE OF MANUAL
This manual contains information for maintenance
of Motorola
's Communications System Analyzer.
2. PURPOSE AND USE
This manual is designed specifically as an aid to
troubleshootingand repairing the SystemAnalyzer. It
is arranged so that you can conveniently troubleshoot
and repair at the board level and pursue detailed
investigations to
the component level by using the
composite drawing of each printed wiring board
assembly.
3. WARNINGS AND CAUTIONS
You should observe several precautions when han-
dling
this equipment.
WARNING
This unit is designed to be oper-
ated with a ground connection
to
the chassis via a three-wire power
connection.
If the unit is not prop-
erly grounded while operating from
an ac power
so urce, the voltage
potential between
it and ground
may cause an electrical shock.
WARNING
Thissystem's Processor board uses
a
lithium battery as a memory
keep-alive voltage source. Do not
mutilate or disassemble
the bat-
tery
ce ll. The li thium metal is a very
active material
that burns in the
presence
of water or high humid-
ity. Do
not put the battery in fire,
attempt to charge it, heat it above
100 °C, or solder directly to the cell.
Do not overdischarge the cell
to a
reverse voltage greater than 3V: the
battery may burst
and burn or
release hazardous materials. (See
Section 4, Table 4-
2, under NON-
VOLATILE MEMORY, for bat-
tery troubleshooting procedures
and cautions.)
xiii
FOREWORD
CAUTION
Lithium batteries are classified as
hazardous materials and must be
disposed of accordingly. Do not
throw
out the battery with the
everyday trash. Consult state and
local codes for the appropriate
disposal procedure. Motorola will
dispose
of an expended battery if
yo u return it (in the replacement
battery container) to the follow-
ing address: Motorola Inc., Return
Goods
Department, 1313 East
Algonquin Road, Schaumburg, Ill.
60196.
CAUTION
This equipment contains parts
that are subject to damage by
static electricity . Take proper
precautions when handling them .
(For specific precautions on han-
dling CMOS integrated circuit
s,
see Section 4, System Checkout
and Troubleshooting, paragraph
4.2.)
4. SERVICE
The Motorola Test - Equipment Repair Center serv-
ices all
test equipment su pplied by the Motorola Com-
munications Group.
The center maintains a stock of
replacement parts for original equipment and a com-
plete library ofservice information for all Motorola
test
equipment. (For the request form, see Figure 1 at the
end
of the section.)
Most in-warranty repairs are performed
at the Cen-
ter. Exceptions include repairs on some equipment
not
manufactured by Motorola. These are performed by
the original supplier
under the direction of the Test-
Equipment Repair Center. Out -of-warranty service is
performed on a
time -and-materials basis at competi-
tive rates, with a turn-around goal of less
than ten
working days. Reply cards ·returned with repaired
instruments continually survey customersatisfaction.
The Test - Equipment Repair Center also provides
the convenience of telephone troubleshooting. Fre-
quently, under
the direction of the Te st- Equipment
Repair Center, you will be able to troubleshoot a piece
of equipment and isolate defective compon
ents via

telephone . Required re placement part s are then
immediately shipped to you, thereby reducing ship-
ping time and servicing costs. For telephone trouble-
shootin
g, co nta ct the Te st- Equipment Repair Center
toll fr ee at (8 00) 323-6 96 7.
All
other inquiries and requests for calibration and
repairs of test equipment should be directed to the
Area
Part s Office. Thi s office will contact the Te st -
Equipment Repair Center , proce ss the necess ar y
paperwork
and , if necessary, have th e Center conta ct
yo u to expedite the repair.
5. ORDERING REPLACEMENT PARTS
Motorola maintains a number of parts offices stra -
tegically located throughout the United States. These
facilities
are staffed to process parts orders, identif y
part numbers, and otherwise assist in the mainte-
nance and repair of Motorola Communications prod-
ucts.
Orders for all replacement parts should be sent to
the nearest service centers listed below. When order-
ing replacement parts ,be sure to include the complete
identification number located on
the equipment.
6. ADDRESSES
6.1 General Offices
MOTOROLA INC.
Communications Division Parts Dept .
1313
E. Algonq uin Rd.
Schaumburg, Illinois 60196
Phone: [phone]
Executive Offices: 1301 E. Algonquin Rd.
Schaumburg, Illinois 60196
6.2 Test Equipment Service Centers
SCHAUMB . URG
Motorola, TESD
1308 Plum Grove Road
Schaumburg, Illinois 60713
Phone: [phone]
FAX: [phone]
EL SEGUNDO
Motorola WCTESD
2333-B Utah
Ave .
El Segundo, California
9024 5
Phone: [phone]
xiv
BASINGSTOKE
Motorola Ltd .
Edison Road
Houndmills Industrial Estate
Basingstoke, Hampshire
UNITED KINGDOM
Phone : [phone] (2034)
MELANO
MotorolaSpA
Viale Milanofiori F3-4
20090 Assago (MI)
ITALY
Phone : [phone]
MELBOURNE
Motorola Pty Ltd .
666 Wellington Rd.
Mulgrave 3171
Victoria
AUSTRALIA
Phone : [phone]
FAX: 6-13
-5 61 -3809
PARIS
MotorolaS.A.
1 Rue Jacques Rueff CE26
92182 Antony Cedex
FRANCE
Phone : [phone]
SINGAPORE
Motorola
Shaw Towers
100 Beach Road #35 -00
SINGAPORE0718
Republic ofSingapore
Phone : [phone]
SOUTH AFRICA
ALCOM pty. Ltd .
5
Thora Crescent
Wynber
g, TVL
SOU TH AFRICA
Phone: 27 - 11 -887-0900 ex 187
FAX: [phone]
TAUNUSSTEIN
Motorola GmbH
Georg Ohm Str. 2
06208 Taunusstein 4 (NeuhoO
WEST GERMANY
Phon e: 49-6128-702179
FAX: [phone]

6.2 Test Equipment Service Centers (Cont)
TEL-AVIV
Motorola
16,
Kremenetski St.
Tel -Aviv 67 899
ISRAEL
Phone : [phone]
TOKYO
Nippon , Motorola
5-2-32 Minami-Azabu
Minato - Ku
Tokyo 106
JAPAN
Phone: [phone] (2023)
TORONTO
Motorola
Unit 10
3420
Pharmacy Ave.
Scarborough,
Ontario
CANADA
Phone : [phone]
XV

MOTOROLA, INC.
COMMUNICATIONS SECTOR
TEST EQUIPMENT REPAIR CENTER
1313 EAST ALGONQUIN ROAD
SCHAUMBURG, ILLINOIS 60196
TEST EQUIPMENT REPAIR REQUEST FORM
This completed form must accompany equipment returned
for repair.
CUSTOMER'S PURCHASE ORDER NO. I
DATE
MODEL NUMBER
I
SERIAL NUMBER
DESCRIPTION OF PROBLEM: I
REQUESTED REPAIRS: I
SHIP TO ADDRESS: I
SHIP VIA : I
Providing the i nformation below will re du ce the turnaround time on your Test
Equipment Repair.
I
1
MOTOROLA CUSTOMER NUMBER
BILL TAG
SHIP TAG
INTE RNAL MOTOROLA A CC OUNT NO. I
Figure /. Repair Re qu est Fo rm
SIGNED : ---- ---- ----
xvi
68P81062 E96 - 0

1.1 D ESC RIPT ION
The Motorola Communications System Analyzer is
a portable
te st instrument, designed specifically for
servicing and monitoring communicationsequipment.
Its functions supersede those
of a Service Monitor,
expanding the features and capabilities so
that serv-
icing involves only a single instrument, rather than a
host ofseparate equipment.
The R2001D is th e standard Communications Sy s-
tem Analyzer. The R2002D has the added capability
of an IEEE-488 Standard Interface control bus, and
the R2008D
ha s the added capability of "Cellular
Radio" testing.
The R2009D adds both of these capa-
bilities to the basic unit. By improving a technician's
efficiency and accuracy, the Analyzer reduces service
time.
The Communications System Analyzer generates
and monitors signals, performing the
te s ts normally
associated with the equipment listed below.
• Spectrum Analyzer
• Duplex Generator
• Modulation Oscilloscope
• Frequency Counter
• AC/DC Digital Voltmeter
• RF Wattmeter/Signal-Level Meter
SECTION 1.
INTRODUCTION
• General Purpose Oscilloscope
• Multi-Mode Code Synthesizer
• Di st ortion/SINAD Meter
• Sweep Generator
• DTMF Encode/Decode
• Printer Port
The An alyzer meets the sh oc k and vi br at ion
requirements of E
IA te st RS152B, th e sa me sp ec i fi-
cations m et by Moto rol a mobile radios. Thi s mini-
mizeg fail ur e wh en the instrume nt is used in a mobile
servi ce va n, and means the Analyzer is as tough as th e
radios it servi ces .
Ta
bl es 1-l. 1 -2 . and 1 -3 li st the physic al , elect ri ca l,
and inp
ut /output characteristics of the Co mmunica-
tions System An al yze r.
Ta
bl e 1- 1. Ph ysical Ch aracte ri stics
Cha r acte ristics Description
Len gt h 20.00 i nc h es (50.8 em)
Wi dth
15.50 inches (:19 .4 em)
Hei !( ht 8.25 inches (21.0 em)
Weil( ht :!5.5 po und s (16.1 kg)
(excluding h
at tery pack a nd
cover acctssories)
Table 1 -2. Electrical Characteristics
Frequency
Range:
Resolution:
Ac cura cy:
C har a cteri stics
Output (into 50 ohms)
Attenuator :
RangeFM :
Ran geAM:
Accuracy:
Spectral purity
S puri ou s:
H ar monics:
MODES
Signal Generator Mode
10kHz to 999.9999 MHz
100Hz
Description
Equal to master oscillator time base
16
dB variable plus 10 dB steps over 13 ranges
O. lJlV to 1 Vrms (- 127 dBm to +1 3 dBm)
O. lJlV to0.4 Vrms
:t 2 dB ma.xi.mum with s tep attenuator in 10 dB pos iti on.
± 4
dB maximum in any other s tate.
.; -40dB
.; - IS dB
1-1

Table 1- 2. Electrical Characteristics (Cont)
Characteristics Description
MODES
Signal Generator Mode
Frequency modulation
Ran ge: 0
to 75kHz peak
Accuracy: ±5% ofreading
Re sidual FM : 20 Hz max. at 300 to 3 kHz from r.
Residual AM: 1.0% max. at 300 to 3kHz from fc
External/internal frequency range:
5Hz to 20kHz (±3 dB),50 Hz to20 KHz(± 1 dB)
External in pu t: Appro1imately 150 mV for 20 kHz deviation
Modes: Internal, erternal , microphone or all simultaneously
Amplitude modulation
Range: 0 to 70% from 1 to 500 MHz
Accuracy: ±10% off ullscalefromO % to 50% AM
External/internal frequency range: 5 Hz to 10 kHz (± 3dB), 5Hz to 3 kHz ( :t 1 dB)
Erternal input: Approximately
150m V for80%
Modes: Internal,
ertemal , microphone or all simultaneously
Double sideband suppressed carrier
Carrier su ppr ession: - 15
dB (1 MH z to 500MHz)
Sweep Generator Mode
Adjustablesweep width from 10kHz to 10 MHz at a fixed sweep rate . Synchronized to internalscope display.
Monitor Mode
Frequency
Range: 1 MHz to 999.9999 MHz
Resoluti on :
100Hz
Accuracy:
Equal to that of master oscillatortime base
Frequency error indicator
Autoranging CRT display. Resolution ± 10Hz for frequency error
measur eme nts on 1.0 kHz, 10.0 kHz and 100.0 kHz full scale ranges. For
frequency errors lese than 100 Hz ,1 Hz resolution. Special function control will
allow direct frequency r ead-out to 1 H:.t resol uti on .
Input se11sitivity
1.5 11 V for 10 dB EIA SIN AD (narrow band ± 6 kHzmod. acceptance).
(over 4 MHz to 1000 MH:.t) 7 11 V for 10 dB EIA SINAD (wide band ± 100kHz mod. acceptance). Useable to
1MHz .
Spurious response
- 40 dBe typical
0 dB image at ±21.4 MHz
-10 dB at L.O. harmonics ± 10 .7 MHz
D evia tion measurement
Range: 1, 10, 100 kHz full scale
Accuracy: ±
5% ofreading
Pe ak deviation limit alarm :
Set via keyboard to 100Hz resolution (0 kHz to 99.9 kHz).
Audible alarm indicates limit condition and will be active in all Monitor mod es.
AM modulation mea s ur eme nt
Range: 0 to 100%
Acc ura cy: ±5% offull scale
Signal strength meter
Ran ge: 1 MHz to 999.9999 MHz
Sens itivit y:
-100dBm to +52 dBm , combined specification of antenna and transceiver
ports.
Selectivity: 30
kH z maximum at 3 dB bandwidth.
RF Wattmeter
(Autoranging display)
Frequency ran ge:
1 MH z to 1000 MHt
Power range: 0.1
watt to 125 watts
Accuracy: ± 10%, 1
watt to 125 wat ts
Protection: Over
temp indicator
Scal es : 9.99, 99.9, 1
25 wat ts
1-2

Table 1 -2. Electrical Characteristics (Cont)
Characteristics Description
MODES
GENERAL FUNCTIONS
Speetrum Analyzer
Dynamic range 75 dB minimum
Frequency
Range: 1
MHzto 1 GHz
Scan width:
100kHz per division to 1 MH:r: per divisio n, co nt inuouslyadjustable.
Sensitivity: -95
dBm minimum
Duplex Ge nerator
Frequenc y off se t Adjustable from 0 to
:t 10MHz in 5 kHz steps , plus fixed offset of :t 45 MHz
Frequency r es olution
5kH:r:
Frequency accuracy :t 0.002%
Output le vel -35 dBm minimum into 50ohm load
Deviation range
0 to ± 20kHz peak
Frequency response 5 Hz to 20kHz , ±3 dB
Enhanced Duplex Generator
Frequency offset Adjustable from 0 to ± 10 MHz in 5kHz s tep s, plus fixed offsets of ± 39 MHz,
± 45
MHz , and :t 55 MHz
Frequency resolution 5 kH z
Frequency accuracy ±0. 0005%
Output lev el - 40 dBm minimum into 50 ohm load
Deviation range 0 to ± 20 lcHz peak
Frequency response
5 Hz to 20 kHz, ± 3 dB
Oscilloscope
Size
Scm X 10cm
Frequency re s ponse
DC to 0.5 MH z (3 dB point )
External vertical input ranges 10mV,IOO mV, lV , lOV ( per division)
Sweep rate s 1
11 s, 10 118 . 0.1 ms, I ms, 0.01S, O. lS (perdivision)
Sync
Internal, normal, and automa ti c mode with adjustable trigger level.
Frequency Counter
Normal
Range : 10Hz to 30 MH z
Rea dout: 5
di git, auto ranging
Input sensitivity: 50
mV minimum
Period counting frequency
determination
Range: 10
Hz to 100 kHz
Display: 4- digit autoranging to 3 kHz, 3-digitautoranging to 1 00kHz
Auto tune (SCAN LOCK)
Range:
In the monitor mode, the unit can automatically find and then tune to an input
sign al above -30 dBm . Operates from 1 MHz to 1 GHz
Acquisition time: 5 sec. typical
to leas than 1 sec, if a limited 9C8Jl is used .
Resolution: ±
1H :r:
Digital Voltmeter
R ea dout:
Autoranging 3· digit display, l, 10, 100, 300 volts full scale. AC-dBm calibrated
across 600 ohms.
DC a
cc ura cy:
±1% of full scale ± 1l east significant di git
AC accuracy :
:t 5% of full scale
AC bandwidth : 50
Hz to20 kHz
1-3