E.F. Johnson Company 242-20X1-213 Manuals

Manuals and User Guides for E.F. Johnson Company 242-20X1-213. We have 1 E.F. Johnson Company 242-20X1-213 manual available for free PDF download: Manual

E.F. Johnson Company 242-20X1-213 Manual (198 pages)

VHF LTR 25W-110W

Brand: E.F. Johnson Company | Category: Repeater | Size: 9.3 MB

Table of Contents
5
Introduction and Operation
15
Scope of Manual
15
Repeater Description
15
Repeater Identification
15
Model Number Breakdown
15
Accessories
15
Part Number Breakdown
15
Product Warranty
16
Factory Customer Service
16
Factory Returns
16
Repeater Accessories
16
Replacement Parts
17
Software Updates/Revisions
17
Repeater Operation
17
Main Processor Card (Mpc)
17
Repeater Cards
18
Active Repeater Alarms
19
Main Audio Card (Mac)
20
Interface Alarm Card (Iac)
20
Power Supply
21
Repeater Information
21
Introduction
21
Home Repeaters
21
Inter-Repeater Data Communication
21
Mobile Transceivers
21
Repeater Data Bus Signaling
21
General
21
Mobile Data Message Order
22
ID Validator Operation
22
Installation
25
Introduction
25
Site Preparation and Antenna Installation
25
Environment
25
Ventilation
25
Ac Power
26
Battery Backup
26
Power Supply
26
Battery Backup Connector
26
Temperature Sensor Cable
26
Ac Input Requirements
27
Power Cable Connector and Schematic
27
Output Voltages
27
Over Voltage
27
Grounding
28
Protection Guidelines
29
Unpacking and Inspection
29
Rack Mounted Repeaters
29
Repeater Data Bus Installation
30
Mpc Data Bus Switch Settings
30
Mpc Data Bus Jumper Settings
30
Connecting Receive and Transmit Antennas
31
Antenna Connections
31
Single Repeater Installation
32
Two Repeater Installation
32
Three or more Repeaters Installation
33
Mixed Viking VX and Cr1100 Repeater Installation
34
Software
35
Introduction
35
How to Use this Manual
35
Getting Started
35
Computer Description
35
Eeprom Data Storage
35
Command Line Options
36
Color or Monochrome Operation
36
Repeater Program Software
36
Installing the Software
36
Minimum Free Memory Required
37
Repeater Programmer
37
Program Files
37
Alignment Software
37
Repeater Test Menu
37
Help F1
38
Programming Flowchart
38
Pull down Menus
39
Menu Displays
39
File Menu
39
Load
39
Save
39
Save as
39
Load File
39
Save File
39
New
40
Print Repeater Configuration
40
Dos Shell
40
Quit (Alt X)
40
Edit Programming Flowchart
40
Edit
41
Setup Parameters
41
Edit Menu
41
Select Repeater
42
Alarm Configuration
42
Repeater List
42
Input Alarms
42
Repeater Type
43
Delete Repeater
43
Output Alarms
43
Alarm Cross Reference
43
Telephone Parameters
44
Transfer
44
Write Setup Parameters
44
Read Setup Parameters
44
Transfer Menu
44
Program Write Setup
44
Reading Setup
44
Hardware Programming Flowchart
44
Hardware
45
Hsdb Monitor
45
Receive/Transmit Data
45
Rf Data
45
Revision/Version
46
Mode Select
46
Test
47
Power Amplifier
47
Receiver
47
Exciter
47
Full Repeater
48
Utilities
48
Com Port
48
Display Mode
48
User Level
48
Repeater Programming
49
Creating a New File
49
Select Repeater to Edit
49
Adding a Repeater to a File
49
Repeater Setup Parameters
50
Circuit Description
51
Receiver
51
Introduction
51
Regulated Voltage Supplies
51
Helical Filters, Rf Amplifier
51
Khz if
51
25 Khz if
53
Vco
54
Active Filter
54
Buffer
55
Synthesizer
55
Buffer Amplifier
57
Lock Detect
57
Charge Pump, Loop Filter
57
Voltage Multiplier
57
First and Second Injection Amplifiers
58
Exciter
58
Vco (A007)
58
Vco Buffer
58
Vco/Tcxo Frequency Modulation
58
Synthesizer
59
Buffer Amplifier
60
Lock Detect
61
Charge Pump, Loop Filter
61
Buffer Amplifier
61
Rf Amplifiers
61
Power Amplifier
61
Amplifier/Predriver
61
Driver
61
Final Amplifiers
62
Power Detectors
62
Thermal Sensor
62
Forward/Reverse Power Detect, Circulator, Low-Pass Filter
62
Rf Interface Board
63
Power Connector
63
Signal Connector (J101)
63
Fan Connector (J104)
65
Power Amplifier Connections
65
Exciter Connector (J102)
66
Receiver Connector (J103)
67
Power Supply
70
Filter Board
70
Power Factor Correction
70
Main Pulse Width Modulator
70
Synchronizing Circuits
72
Fan and Thermal Shutdown
72
Converter
73
Power Supply Repair and Alignment
73
Battery Back-Up Module
74
Operation
74
Charger
74
Reverse Battery Protection
75
Engaging the Relay
75
Over/Undervoltage Shutdown
75
Bbm Fan Control
76
Card Rack
76
External Connector Board
77
Main Processor Card
78
Introduction
78
Main Controller Microprocessor
79
High Speed Data Bus Microprocessor (U13)
79
Chip Select Decoders (U15/U4)
80
P1 Signal Connector
80
J1 Computer Connector
81
J2 Memory Select
81
J3 Baud Rate
81
S2/S3 Hsdb Settings
81
J4 Eprom Memory Loading
81
J5 Hsdb Speed
81
J6 Watchdog
81
Main Audio Card
82
Introduction
82
Audio/Data Microprocessor
82
Receive Audio
82
Receive Squelch Circuitry
83
Receive Data Circuitry
83
Receive Audio Processing
83
Voter Audio
84
Compandor Option
84
Transmit Audio
84
Transmit Audio Processing
84
Transmit Data and Cwid Processing
85
P101 Signaling Connector
85
P100 External Outputs
86
J100 a D Level Test Point
87
J101 Speaker/Microphone
87
J102 Local Microphone
87
J103 Ground
87
J104 External Speaker
87
J105 Watch Dog
87
J106 Tx Data Path
87
A301 Compandor Connections
87
Interface Alarm Card
88
Relay Outputs
88
Isolated Inputs
88
Alarm Indicators
89
Alarm Functions
89
P500 Signaling Connector
90
P501 External Outputs
91
J500 a D Level Test Point
93
J501 Ground
93
J502 +15V
93
Power Switch
93
J505 Squelch Enable Output
93
Alignment and Test Procedures
99
Receiver Alignment
99
Pretest
99
Voltage Measurements
99
Program Tune-Up Channel
99
Receiver Frequency Adjust
100
Vco Test
100
Front End Adjustments
100
Audio Distortion
101
Exciter Alignment
102
Pretest
102
Voltage Measurements
102
Program Tune-Up Channel
102
Vco Test
103
Tcxo Frequency Adjust
103
Transmit Modulation Adjust
103
Power Amplifier Alignment
104
Introduction
104
Driver Tuning and Limit Adjustments
104
Power Amplifier Tuning
104
Full Repeater Alignment
109
Performance Test Program
109
Repeater Setup
109
Transmitter Test/Adjustments
109
Receiver Tests/Adjustment
109
Transmit Audio/Data Level Adjustments
111
Voter Audio Level Adjustment
113
Audio/Data Level Adjustments
113
Repeater Operation
114
Servicing
119
Introduction
119
Periodic Checks
119
Surface-Mounted Components
119
Schematic Diagrams and Component Layouts
119
Replacement Parts List
119
Tcxo Modules Not Serviceable
119
Synthesizer Servicing
119
Tcxo Module
120
Voltage Controlled Oscillator (Vco)
120
Internal Prescaler
120
Calculating "N " and "A " Counter Divide Numbers
121
Receiver Servicing
121
Transmitter Servicing
121
Power Supply Servicing
121
Voltage Checks
123
Chip Component Identification
123
CERAMIC CHIP CAPACITORS (510-36Xx-XXX)
123
TANTALUM CHIP CAPACITORS (510-26Xx-XXX)
123
CHIP INDUCTORS (542-9000-XXX)
123
Chip Resistors
123
Ceramic Chip Cap Identification
124
Chip Transistors and Diodes
125
Grafoil Replacement Procedure
125
Chip Inductor Identification
125
Parts List
127
Viking VX Vhf Ltr Repeater
127
Vhf Ltr Repeater
127
Repeater Enclosure Assembly
127
Transceiver Mechanical
128
Controller Backplane Card
128
External Connector Board
129
Power Supply Filter Board
129
Rf Interface Board
129
Repeater Rx/Ex Module
131
25 Khz RECEIVER
132
Transmit Vco
136
Exciter
137
Power Amplifier
139
Low-Pass Filter
141
Forward/Reverse Power Detector
141
Power Amplifier Mechanical
141
Power Supply Main Board
142
Ac Filter Board
147
Battery Back-Up
147
Thermal Sensor Board
149
Main Processor Card
149
Main Audio Card
151
Interface Alarm Card
156
Schematics and Component Layouts
161
Repeater Rear View
162
Repeater Front View
162
Backplane Interconnect
164
Rf Interface Board Component Layout
166
Rf Interface Board Schematic
167
Receiver Component Layout
168
Receiver Schematic
169
Exciter Component Layout
170
Exciter Schematic
171
Power Amplifier Component Layout
172
Power Amplifier Schematic
173
Forward/Reverse Power Schematic
175
Main Processor Card Component Layout
176
Main Audio Card Schematic (1 of 3)
181
Main Audio Card Schematic (2 of 3)
182
Backplane Component Layout (Card Side)
186
Backplane Schematic
188
Power Cable Connector and Schematic
196

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E.F. Johnson Company 242-20X1-213 Manuals

E.F. Johnson Company 242-20X1-213 Manual (198 pages)

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