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VX-4600 Series
Vertex Standard VX-4600 Series User Manual
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38
VX-4500/-4600 Series VHF FM Transceiver Service Manual
Parts Layout (Side A)
1
2
B
A
D
CE
b
a
d
ce
1
2
Parts Layout (Side B)
FRONT-B Unit (VX-4600: Lot. 1~2)
37
39
Table of Contents
Table of Contents
1
Introduction
1
Important Note
1
Specifications
2
DSUB 15-Pin Accessory Connector
3
Exploded View & Miscellaneous Parts
4
Block Diagram
5
Circuit Configuration by Frequency
6
Receiver System
6
Front-End RF Amplifier
6
Circuit Description
6
Automatic Transmit Power Control
7
MIC Amplifier
7
Drive and Final Amplifier
7
Transmitter System
7
Required Test Equipment
8
Alignment Preparation & Precautions
8
Alignment
8
Test Setup
9
The Alignment Tool Outline
9
Installation of the Alignment Tool
9
Action of the Switches
9
Alignment Mode
10
Unit
10
Vco (Rx Vco/Tx Vco)
11
PLL Reference Frequency
11
RX Sensitivity (RX Tune)
12
Squelch (SQL)
13
TX Power
14
ADJ Type
14
Maximum Deviation
15
Modulation Balance
16
CTCSS Deviation
17
DCS Deviation
18
DTMF Deviation
19
Sequential Tone Deviation
19
TX MSK Level
20
VOX on Level
20
EXT AF out Level
21
Fvp-35, Dvs-8, Vt-60F/Fs
22
Installation of Option
22
Circuit Diagram
23
MAIN Unit
23
Parts Layout
24
Parts Layout (Side A)
27
Parts List
29
FRONT-A Unit ( VX-4500 )
30
FRONT-B Unit ( VX-4600 )
37
DVS-8 Voice Storage Unit (Option)
44
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Vertex Standard VX-4600 Series Specifications
General
Brand
Vertex Standard
Model
VX-4600 Series
Category
Transceiver
Language
English
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