Motorola EVX S24 User Manual

Contents
Chapter 1: Introduction.............................................................................................3
Chapter 2: Specifications : USA (NA)......................................................................4
Chapter 3: Exploded View and Miscellaneous Parts............................................. 6
3.1 Parts List..................................................................................................................................8
3.2 Block Diagram (FR028210D)...................................................................................................9
3.3 Block Diagram (PC003006A01).............................................................................................11
Chapter 4: Circuit Description............................................................................... 13
4.1 Receiver System....................................................................................................................13
4.2 Transmitter System................................................................................................................13
4.3 PLL Frequency Synthesizer...................................................................................................14
Chapter 5: Alignment..............................................................................................15
5.1 Required Test Equipment...................................................................................................... 15
5.2 Alignment Preparation and Precautions................................................................................ 16
5.3 Test Setup............................................................................................................................. 16
5.4 The Alignment Tool Outline................................................................................................... 16
5.4.1 Installing the Alignment Tool....................................................................................16
5.4.1.1 Action of the Switches................................................................................17
5.4.1.2 Alignment Mode......................................................................................... 18
5.4.2 VCO (VCO).............................................................................................................. 18
5.4.3 PLL Reference Frequency (Frequency)...................................................................19
5.4.4 TX Power................................................................................................................. 20
5.4.5 Maximum Deviation (Wide/Narrow)......................................................................... 22
5.4.6 Symbol Deviation..................................................................................................... 23
5.4.7 CTCSS Deviation (Wide/Narrow).............................................................................24
5.4.8 DCS Deviation (Wide/Narrow)................................................................................. 25
5.4.9 DTMF Deviation....................................................................................................... 26
5.4.10 MSK Deviation....................................................................................................... 26
5.4.11 Sequential Tone Deviation.....................................................................................27
5.4.12 Download (Save) the Alignment Data and Exit From the Alignment Mode........... 28
Chapter 6: Main Unit (FR028210D)........................................................................ 29
6.1 Main Unit Parts List (FR028210D).........................................................................................33
Chapter 7: Display Unit (FR028310A)....................................................................45
7.1 Display Unit Parts List............................................................................................................49
Chapter 8: Main Unit (PC003006A01).................................................................... 50
8.1 Main Unit Parts List (PC003006A01).....................................................................................54
MN006437A01-AB
Contents
2

Motorola EVX S24 Specifications

General

Frequency Range	VHF: 136-174 MHz, UHF: 403-470 MHz
IP Rating	IP67
Operating Temperature	-30°C to +60°C
Digital Protocol	DMR
Programmable Buttons	2
Channels	256
Display	Yes