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9323
Codan 9323 Service Manual
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HF SSB Transceiver 9323/9360/9390/9780 T
echnical Service Manual
2-3
Figure 2 -4:
Ex
tended control head (9366) of HF SSB Transcei
ver 9360
Figure 2 -5:
Front panel
and extended control head (
9391) of HF SSB Transceiver
9390
Figure 2 -6:
Front panel of HF SSB Transceiv
er 9780
30
32
Table of Contents
Default Chapter
3
Table of Contents
3
Index
13
About this Manual
19
Standards and Icons
20
Definitions
21
Acronyms and Abbreviations
21
Glossary
24
Circuit Reference Designations
24
Units
25
Unit Multipliers
26
About this Issue
27
Associated Documents
27
Other Documents
27
General Information
29
Overview
29
Figure 2-1: Front Panel of HF SSB Transceiver 9323
30
Figure 2-3: Front Panel of HF SSB Transceiver 9360
30
Figure 2-2: Extended Control Head (9330) of HF SSB Transceiver 9323
30
Front and Rear Panel Diagrams
30
List of Figures
30
Figure 2-6: Front Panel of HF SSB Transceiver 9780
31
Figure 2-5: Front Panel and Extended Control Head (9391) of HF SSB Transceiver 9390
31
Figure 2-4: Extended Control Head (9366) of HF SSB Transceiver 9360
31
Figure 2-8: Rear Panel of HF SSB Transceivers 9323, 9360, 9390 and 9780
32
Figure 2-7: Extended Control Head (9782) of HF SSB Transceiver 9780
32
Specifications
33
General Specifications
33
Receiver Specifications
35
Transmitter Specifications
36
List of Tables
38
Connectors
38
Microphone
38
Remote Control
38
Table 2-1: Microphone Connector (J3) Pin Function
38
Table 2-2: Remote Control Connector (P204) Pin Function
38
Antenna Control
39
Table 2-3: Antenna Control Connector (J202) Pin Function
39
External Alarm
40
Rs232
40
Loudspeaker
40
Table 2-4: External Alarm Connector (J305) Pin Function
40
Table 2-5: RS232 Connector (J101) Pin Function
40
Table 2-6: External Loudspeaker Connector (J206) Pin Function
40
Option GP, General Purpose
41
Option M, Morse
41
Programming Cable
41
Table 2-7: Option GP Connector (J304) Pin Function
41
Table 2-8: Morse Connector (J204) Pin Function
41
Table 2-9: Programming Cable Connector Pin Function
41
Cloning Cable
42
Table 2-10: Cloning Cable Connector Pin Function
42
Options
43
Brief Description
45
Figure 3-1: 9323, 9360, 9390 and 9780 PCB Block Diagram
46
General
46
Control and Switching
47
Synthesiser
48
Receive Path
49
Transmit Path
50
Technical Description
51
Control and Supply Voltages
51
Power on
51
Power off
52
Supply Voltages
52
Table 4-11: Display Panel PCB Supply Voltages
52
Table 4-12: Microprocessor and Audio PCB Supply Voltages
53
Table 4-13: Rx/Exciter PCB Supply Voltages
53
Table 4-14: PA and Filter PCB Supply Voltages
53
Receive/Transmit Switching
54
Receiver
55
Input Low-Pass Filters
55
High-Pass Filters
55
RF Amplifier
55
LPF and First Mixer
56
45 Mhz Band-Pass Filter
56
Second Mixer
56
Noise Limiter
56
455 Khz Filter and if Amplifier
57
Demodulator
57
Automatic Gain Control
57
Voice Mute
59
Volume Control and Audio Output Amplifier
60
Low Voltage Tx Inhibit
60
Transmitter Exciter
61
Microphone Amplifier/Compressor
61
Modulator
62
455 Khz Filter and First Mixer
62
45 Mhz Band-Pass Filter
63
Second Mixer and Exciter Output Filter
63
Tune
63
Local Oscillators
65
General
65
VCO1 and Phase Lock Loop (04-02972)
65
VCO1 and Phase Lock Loop (04-03135)
66
VCO2 and Phase Lock Loop (04-02972)
67
VCO2 and Phase Lock Loop (04-03135)
68
455 Khz Local Oscillator for USB/LSB (04-02972)
68
455 Khz Local Oscillator for USB/LSB (04-03135)
69
Clarifier
70
Microprocessor and Peripherals-Transceiver
71
Microprocessor
71
I C Buses
72
Synthesiser Bus
73
PA Serial Bus
73
RS232 Bus
73
Tone Generation
73
A/D Inputs
74
Antenna Control
74
E 2 PROM Write Protect
75
Table 4-15: Frequency Band and Number
75
Microprocessor and Peripherals-Control Panel
76
Microprocessor
76
I 2 C Buses
76
Keypad
76
Select Control
77
Volume Control
77
Display
77
Microphone Keypad
78
Data Input/Output
78
S"+ RF Indicator
79
Mute Indicators
79
Front Panel Back Light
79
PA and Filters
80
Gain Control Stage
80
Pre-Driver Stages
80
Driver Stage
81
Output Stage and Bias Regulator
81
Output Filters
81
ALC Control
82
Selective Calling
84
Calibration
84
Selective Calling
85
Emergency Call (RFDS) and Two-Tone Calling
86
Emergency Alarm (Marine)
87
PA Exciter Interface
88
Filter and PTT Control
88
Power On/Off
88
Transmit Amplifier
89
Receiver Path
89
Antenna Control
89
PA Assembly 4404
90
Options
91
Option am
91
Option CW
91
Option F
91
Option GP
92
Option M
92
Option PH
92
Table 4-16: Connector J303 Functions
92
Option STE (9390 Only)
93
Accessories
94
RS232/I 2 C Interface
94
Table 4-17: Baud Rate (GPS)
94
Table 4-18: Baud Rate (Computer)
94
Table 4-19: Enabling Ports
95
Maintenance
97
General
97
CMOS Devices
97
Circuit Boards
98
Transmitter Precautions
99
Probe Precautions
100
Surface Mounted Components
100
Dismantling and Assembling
101
Top and Bottom Covers
101
Rx/Exciter PCB
102
Microprocessor and Audio PCB
102
PA and Filter Assembly
102
Front Panel
104
Control Head
105
Fault Diagnosis
106
General
106
Table 4-20: RS232/IC Interface Addresses
107
Table 5-1: Display Panel PCB Supply Voltages
107
Table 5-2: Microprocessor and Audio PCB Supply Voltages
107
Table 5-3: Rx/Exciter PCB Supply Voltages
107
Voltage Measurements
107
No Reception
108
Table 5-4: PA & Filter PCB Supply Voltages
108
No Transmit
109
Unlocked Synthesiser
109
PA Failure
110
Table 5-5: Peak to Peak Voltages
110
Replacement of PA Transistors
111
Control Keypad
112
Displayed Error Messages
112
Table 5-6: Keypad Connections
112
Channel Additions
115
Figure 6-1: Microprocessor and Audio PCB Extract
116
Programming Transmit Frequencies Txd/Txe
116
Tx/Rx Programming Procedure
117
Deleting a Channel
121
Adjustments
123
Introduction
123
Test Equipment Required
124
Voltage Regulators
125
Crystal Oven
126
Test Mode
127
Accessing Test Mode
128
Figure 7-1: Link 1 Position
128
Test Channels for 2.0 to 26.5 Mhz PA Assembly
129
Test Channels for 2.25 to 30 Mhz PA Assembly (1.6 to 30 Mhz with Option LF Fitted)
130
VCO Checks and Adjustments
132
VCO1 Check
132
VCO2 Check
132
VCO2 Adjust
133
HPF/LPF Filter Alignment
134
HPF Filter
134
LPF Filter
135
45 Mhz Filter Alignment (08-04962)
136
Alignment-Method 1
136
Alignment-Method 2
137
45 Mhz Filter Alignment (08-05322)
139
Alignment-Method 1
139
Alignment-Method 2
140
455 Khz if and Noise Limiter Alignment
141
Exciter Output Transformer Balance
142
Frequency Adjustment
143
Frequency Adjust USB
143
Frequency Adjust LSB
143
Mute Adjustment
144
PA Adjustments
145
Driver Bias
145
PA Bias
145
Output Power
146
Output Power 27 Mhz Band (9323 Only)
147
Intermodulation
148
Receiver Performance Checks
150
Sensitivity and (S+N)/N Ratio
150
AGC Check
150
Audio Output
151
Selectivity (USB Operation)
151
Clarifier Operation
151
Noise Limiter Operation
152
Transmitter Performance Checks
153
Frequency Check
153
Alc
153
Power Output and Intermodulation
153
Emergency Call (9323 Only)
154
Parts List
155
General Information
155
Ordering Information
156
Component Substitution
156
Parts List
156
Drawings
157
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Codan 9323 Specifications
General
Brand
Codan
Model
9323
Category
Transceiver
Language
English
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