Uniden ARH 351 VHF Repeater Manuals

Manuals and User Guides for Uniden ARH 351 VHF Repeater. We have 1 Uniden ARH 351 VHF Repeater manual available for free PDF download: Service Manual

Uniden ARH 351 Service Manual

Uniden ARH 351 Service Manual (70 pages)

148-174 mHz 35 watts repeater

Brand: Uniden | Category: Repeater | Size: 4 MB

Table of Contents

Safety Information
2
Warning
2
Table of Contents
3
Specifications
4
Introduction
5
Description
5
Duplexer
5
Replacement Parts
5
Operating Instructions
6
Local Control Repeater/Base Station Operation
6
Repeater Operation
6
Operating Controls and Their Functions
7
Theory of Operation
7
Transmitter Oscillator
7
Speech Amplifier
7
Power Controls
8
Receiver RF Section
8
Receiver Oscillator
8
Squelch Gate
8
Repeater Control Board
9
Repeat Audio
9
Repeater Squelch Gate
9
CTCSS Tone Encoder
9
Timing Chart
10
Battery Operation Warning
10
Suggested Test Equipment
11
Block Diagram
12
Power Supply Alignment Procedure
13
Transmitter Alignment Procedure
13
Transmitter Test Equipment Setup
14
Alignment Location Chart
15
Receiver Alignment Procedure
16
Receiver Test Equipment Setup
16
Receiver PC Board
17
Control Board Alignment Procedure
18
Control Board Test Equipment Setup
19
Decoder CTCSS Frequency Chart
19
Encoder CTCSS Frequency Chart
19
New Control Board Alignment Location Chart
20
Voltage Chart
21
Exciter Voltage Chart
21
Power Amplifier Voltage Chart
21
Receiver Voltage Chart
21
Control Board Voltage Chart
22
Power Supply Voltage Chart
23
Feed Thru Voltage Chart
23
Power Supply Schematic
24
Power Supply X-Ray View
25
Power Amplifier Viewed from Component Side
27
Mechanical Parts List
46
Electrical Parts List
47
Pin Connections for Control PCB
53
Control Board Jumper Selections
53
Control Board Push Pin Identification
53
Interface Connector
53
19 Inch Rack Mount Brackets
55
Installation Instructions
55
Continuous Tone - Controlled Squelch
56
CTCSS Frequency Chart
56
Power Supply Schematic Diagram
59
Board View Component Side
62
Repeater Control PCB Board View Component Side
64
Capacitors
65
Diodes
66
Integrated Circuits
66
Transistors
67
Resistors
67
Variable Resistors
68
Connectors
69
Miscellaneous
69

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