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Smartuner SG-231
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SGC Smartuner SG-231 Technical Information Page 59
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© 1998 SGC Inc
LPA PCB SCHEMATIC 2 OF 3
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S G - 2 0 2 0
1
Tr a n s c e i v e r
1
SGC — The SSB People
2
TABLE OF CONTENTS
4
1.0 FEATURES
5
2.0 INTRODUCTION
6
3.0 SPECIFICATIONS:
8
SG-2020 SSB HF TRANSCEIVER
8
4.0 INSPECTION UPON RECEIPT
9
DATA, AM)
9
© 1998 SGC Inc
10
6.0 INSTALLATION
12
7.0 SG-2020 APPLICATIONS
16
KEY NAME PRIMARY FUNCTION
20
FIGURE 2
20
10.0 POWER - ON OPTIONS
27
11.0 BARGRAPH DISPLAY
29
12.0 FRONT PANEL CONNECTORS
30
13.0 REAR PANEL CONNECTORS
31
14.0 CIRCUIT DESCRIPTION
33
15.0 AM BROADCAST RECEPTION
35
Speaker Removed
36
Speaker removedJ6
36
PART V DC PART V DC PART V DC
43
U16P4 5.0
45
N40102020•
48
INTERCONNECT
48
COMPONENT LAYOUT EXCITER
49
COMPONENT LAYOUT LPA
50
COMPONENT LAYOUT DISPLAY
53
LPA PCB SCHEMATIC 1 OF 3
58
LPA PCB SCHEMATIC 2 OF 3
59
LPA PCB SCHEMATIC 3 OF 3
60
EXCITER PCB SCHEMATIC 1 OF 8
61
EXCITER PCB SCHEMATIC 2 OF 8
62
EXCITER PCB SCHEMATIC 3 OF 8
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EXCITER PCB SCHEMATIC 4 OF 8
64
EXCITER PCB SCHEMATIC 5 OF 8
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EXCITER PCB SCHEMATIC 6 OF 8
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EXCITER PCB SCHEMATIC 7 OF 8
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EXCITER PCB SCHEMATIC 8 OF 8
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DISPLAY PCB SCHEMATIC 1 OF 1
69
19.0 CATALOG ITEMS
70
Glossary
76
Marine Ham Net Frequencies
80
APPENDIX A
80
U.S. COAST GUARD
82
Standard Warranty
85
SG-2020 Tr a n s c e i v e r
86
0=Not Acceptable 3=Good
88
1=Poor 4=Very Good
88
2=Acceptable 5=Excellent
88
SG-2020 PortaPak
89
Battery Case
93
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