Motorola EVX S24

EVX S24 Service Manual
*MN006437A01*
MN006437A01-AB
JANUARY 2021
©
2021 Motorola Solutions, Inc. All rights reserved

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

Summary

Chapter 1: Introduction

Chapter 2: Specifications: USA (NA)

Table 1: General

General operating and physical specifications of the transceiver.

Table 2: Receiver (Measured by TIAEIA-603)

Receiver performance metrics according to TIA/EIA-603 standards.

Table 3: Transmitter (Measured by TIAEIA-603)

Transmitter performance metrics according to TIA/EIA-603 standards.

Chapter 3: Exploded View and Miscellaneous Parts

FRONT CASE ASSY (Component)

List of components for the front case assembly.

REAR CASE ASSY (Component)

List of components for the rear case assembly.

CHASSIS ASSY (Component)

List of components for the chassis assembly.

BATTERY COVER ASSY (Component)

List of components for the battery cover assembly.

MAIN UNIT ASSY (Component)

List of components for the main unit assembly.

DISPLAY UNIT ASSY (Component)

List of components for the display unit assembly.

3.1 Parts List

Detailed list of all replaceable parts for the transceiver.

3.2 Block Diagram (FR028210 D)

Block diagram of the FR028210D RF section.

MAIN-UNIT (CPUDSP Section)

Block diagram of the Main Unit CPU/DSP section.

3.3 Block Diagram (PC003006 A01)

Block diagram of the PC003006A01 RF section.

MAIN-UNIT (CPUDSP Section)

Block diagram of the Main Unit CPU/DSP section.

Chapter 4: Circuit Description

4.1 Receiver System

Description of the receiver circuit operation.

4.2 Transmitter System

Description of the transmitter circuit operation.

4.3 PLL Frequency Synthesizer

Description of the PLL frequency synthesizer.

Chapter 5: Alignment

5.1 Required Test Equipment

List of test equipment required for transceiver alignment.

5.2 Alignment Preparation and Precautions

Guidelines and warnings to follow before performing alignment.

5.3 Test Setup

Procedure for setting up test equipment for alignment.

5.4 The Alignment Tool Outline

Overview of the alignment software tool.

5.4.1 Installing the Alignment Tool

Steps to install and launch the alignment software.

5.4.1.1 Action of the Switches

How PTT and programmable keys behave during alignment.

5.4.1.2 Alignment Mode

Instructions for using the alignment mode features.

5.4.2 VCO (VCO)

Procedure to confirm the VCO lock status.

5.4.3 PLL Reference Frequency (Frequency)

Procedure to align the PLL reference frequency.

5.4.4 TX Power

Procedure to align transmit power levels.

5.4.5 Maximum Deviation (WideNarrow)

Procedure to align frequency deviation.

5.4.6 Symbol Deviation

Procedure to align digital mode deviation.

5.4.7 CTCSS Deviation (WideNarrow)

Procedure to align CTCSS deviation.

5.4.8 DCS Deviation (WideNarrow)

Procedure to align DCS deviation.

5.4.9 DTMF Deviation

Procedure to align DTMF deviation.

5.4.10 MSK Deviation

Procedure to align MSK deviation for ANI operation.

5.4.11 Sequential Tone Deviation

Procedure to fine-tune sequential tone deviation.

5.4.12 Download (Save) the Alignment Data and Exit From the Alignment Mode

Procedure to save alignment data and exit the alignment mode.

Chapter 6: Main Unit (FR028210 D)

Figure 1: Circuit Diagram (RF Section)

Circuit diagram of the RF section of the main unit.

Figure 2: Circuit Diagram (CONTROL Section)

Circuit diagram of the control section of the main unit.

Figure 3: Parts Layout (Side A)

Component placement diagram for the main unit, side A.

Figure 4: Parts Layout (Side B)

Component placement diagram for the main unit, side B.

6.1 Main Unit Parts List (FR028210 D)

Detailed list of components for the main unit.

Chapter 7: Display Unit (FR028310 A)

Figure 5: Display Unit (FR028310 A)

Circuit diagram of the display unit.

Figure 6: Parts Layout (Side A)

Component placement diagram for the display unit, side A.

Figure 7: Parts Layout (Side B)

Component placement diagram for the display unit, side B.

7.1 Display Unit Parts List

Detailed list of components for the display unit.

Chapter 8: Main Unit (PC003006 A01)

Figure 8: Circuit Diagram (RF Section)

Circuit diagram of the RF section for PC003006A01.

Figure 9: Circuit Diagram (CONTROL Section)

Circuit diagram of the control section for PC003006A01.

Figure 10: Parts Layout (Top)

Component placement diagram for PC003006A01, top.

Figure 11: Parts Layout (Bottom)

Component placement diagram for PC003006A01, bottom.

8.1 Main Unit Parts List (PC003006 A01)

Detailed list of components for PC003006A01.