ACL SR-209 User manual

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ACL |
VHF/UHF RECEIVER
TYPE SR-209
INSTRUCTION MANUAL
ASTRO COMMUNICATION LABORATORY
9125 Gaither Road
Gaithersburg, Maryland
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VHF/UHF RECEIVER
TYPE SR-209
INSTRUCTION MANUAL
Astro Communication Laboratory
9125 Gaither Road
Gaithersburg, Maryland
Courtesy of http://BlackRadios.terryo.org

FORE WARD
VHF/UHF Receiver Type SR-209 is a basic receiver of modular design
and variable arrangement. Plug-in modules and printed circuit assemblies
provide the versatility.
This manual is about the basic receiver and its printed circuit assem
blies. Plug-in modules are referenced for continuity in presentation. Detailed
information is contained in separate instruction manuals.
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TABLE OF CONTENTS
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Paragraph Page
SECTION I
GENERAL INFORMATION
1. General 1-1
2. Electrical Description 1-2
3. Mechanical Description 1-3
4. Accessories Supplied 1-3
SECTION II
SPECIFICATIONS
1. Receiver 2-1
2. Tuning Head 2-2
3. IF Amplifier/Demodulator 2-4
4. Signal Display Unit 2-5
5. Battery Pack 2-6
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6. Electronic Swept Heads . 2-6
SECTION III
INSTALLATION AND OPERATION
1. General 3_1
2. Installation 3_1
A. Printed Circuit Assemblies 3-1
B. Plug-in Modules 3_2
C. Connections 3.2
3. Operation 3.3
A. Power Switch 3_4
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TABLE OF CONTENTS
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SECTION III
(Cont)
B. FM Operation 3-4
C. AM and PAM Operation 3-5
D. CW Operation 3-5
E. Carrier Operated Relay 3-6
F. Turn-Off Procedure 3-6
SECTION IV
THEORY OF OPERATION
1. Functional Description 4-1
2. Typical Wideband IF Amplifier, IF-212-300 4-3
A. Similarities and Differences Between IF-212-300
and Other Wideband Amplifiers 4-3
B. IF-212-300, Functional Circuit Description 4-3
3. Typical Medium Bandwidth IF Amplifier, IF-211-100 4-4
A. Similarities and Differences Between IF-211-100
and Other Medium Bandwidth Amplifiers 4-4
B. IF-211-100, Functional Circuit Analysis 4-5
4. Typical Narrow Bandwidth IF Amplifiers, IF-210-20
andIF-215-10 4-6
5. Typical Narrow Bandwidth IF Amplifier, IF-112-10 4-7
A. Similarities and Differences Between IF-112-10 and
Other Narrow Bandwidth IF Amplifiers 4-7
B. IF-112-10, Functional Circuit Description 4-7
6. AGC Amplifier, AGC-202-2 4-9
in
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SECTION IV
(Cont)
7. Video Amplifier, VA-202-1 4-9
8. Audio Amplifier, AA-206 4-10
9. Carrier Operated Relay, COR-201 4-10
10. ±12 VDC Power Supplies, PS-103 4-10
11. 24 VDC Power Supply, PS-104 4-11
12. AFC Amplifier, AFC-203 (Optional) 4-11
SECTION V
MAINTENANCE
1. General ^-J-
2. Troubleshooting 5-1
3. Test Equipment 5~2
4. Preliminary Procedures for Measurement and
Alignment o-3
5. ±12 Volt Power Supply, PS-103 5-4
A. Normal Operating Voltages 5-4
B. Power Supply Adjustment 5-4
6. 24 Volt Power Supply, PS-104 5-4
A. Normal Operating Voltages 5-4
B. Power Supply Adjustment 5-5
7. IF-212 Family IF Amplifiers 5-5
A. Normal Operating Voltages 5-5
IV
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TABLE OF CONTENTS
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SECTION V
(Cont)
B. Module Alignment 5-5
C. AM Alignment 5-6
D. FM Alignment 5-6
8. IF-211 Family IF Amplifiers 5-8
A. Normal Operating Voltages 5-8
B. Module Alignment 5-9
C. AM Alignment 5-9
D. FM Alignment 5-10
9. IF-210 or IF-215 IF Amplifiers 5-10
A. Normal Operating Voltages 5-10
B. Module Alignment 5-10
C. AM Alignment 5-12
D. FM Alignment 5-12
10. IF-112 Family IF Amplifiers 5-13
A. Normal Operating Voltages 5-13
B. Module Alignment 5-14
C. AM Alignment 5-14
D. FM Alignment 5-15
11. AGC Amplifier, AGC-202-2 5-15
A. Normal Operating Voltages 5-15
B. Module Adjustment 5-16
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TABLE OF CONTENTS
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SECTION V
(Cont)
12. Audio Amplifier, AA-206 5-16
A. Normal Operating Voltages 5-16
B. Module Adjustment 5-16
13. COR Amplifier, COR-201 5-17
A. Normal Operating Voltages 5-17
B. Module Adjustment 5-17
14. Other Measurements 5-18
SECTION VI
PARTS AND MANUFACTURERS LIST
1. Parts List 6-1
Receiver SR-209 6-2
300 KHz IF Amplifier, IF-212-300 6-7
100 KHz IF Amplifier, IF-211-100 6-13
20 KHz IF Amplifier, IF-210-20 6-18
10 KHz IF Amplifier, IF-112-10 6-24
AGC Amplifier, AGC-202-2 6-29
Video Amplifier, VA-202-1 6-31
Audio Amplifier, AA-206 6-32
Carrier Operated Relay, COR-201 6-34
±12 VDC Power Supply, PS-103 6-35
24 VDC Power Supply, PS-104 6-36
AFC Amplifier, AFC-203
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VI
6-37
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Paragraph Page
SECTION VI
(Cont)
2. Manufacturer's List 6-38
SECTION VII
ILLUSTRATIONS AND SCHEMATICS
Illustrations and Schematics 7-1
LIST OF ILLUSTRATIONS
Figure Page
1-1 VHF/UHF Receiver SR-209
1-2 Typical Receiver Configurations
3-1 SR-209 Receiver, Top View
3-2 SR-209 Receiver, Rear View
3-3 Operator's Controls and Indicators
4-1 SR -209 Functional Block Diagram
5-1 IF Amplifier Alignment Test Setup
5-2 IF-212 Family AM Response
5-3 IF-212 Family FM Discriminator Response
5 - 4 I F - 2 1 1 F a m i l y A M R e s p o n s e
5-5 IF-211 Family FM Discriminator Response
5-6 IF-210 and IF-215 AM Response
5 - 7 I F - 2 1 0 a n d I F - 2 1 5 F M D i s c r i m i n a t o r R e s p o n s e
5 - 8 I F - 1 1 2 F a m i l y A M R e s p o n s e
5 - 9 I F - 1 1 2 F a m i l y F M D i s c r i m i n a t o r R e s p o n s e
vii
1-0
1-1
3-1
3- -2
3-4
4-0
5-7
5-7
5-8
5-10
5-11
5-12
5- -13
5- -14
5- -15
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TABLE OF CONTENTS
Figure Page
LIST OF ILLUSTRATIONS
(Cont)
7-1A Typical Wideband IF Amplifier, IF-212-300 7-2
7-1B IF Amplifier, IF-212-300, Schematic 7-2
7-2A Typical Medium Bandwidth IF Amplifier,
IF-211-100 7-3
7-2B IF Amplifier, IF-211-100, Schematic 7-3
7-3A Typical Narrow Bandwidth IF Amplifier,
IF-210-20 7-4
7-3B IF Amplifier, IF-210-20, Schematic 7-4
7-4A Typical Narrow Bandwidth IF Amplifier,
IF-112-10 7-5
7-5
7-4B IF Amplifier, IF-112-10, Schematic
7-5A AGC Amplifier, AGC-202-2 7-6
7-5B AGC Amplifier, AGC-202-2, Schematic 7-6
7-6A Video Amplifier, VA-202-1 7-7
7-6B Video Amplifier, VA-202-1, Schematic 7-7
7-7A Audio Amplifier, AA-206 7-8
7-7B Audio Amplifier, AA-206, Schematic 7-8
7-8A Carrier Operated Relay Amplifier, COR-201 7-9
7-8B Carrier Operated Relay Amplifier, COR-201,
Schematic 7-9
7-9A ±12 VDC Power Supply, PS-103 7-10
7-9B ±12 VDC Power Supply, PS-103, Schematic 7-10
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