TMC Radio SRM 9000 Series User manual

SRM 9000 Series
FM VHF/UHF Mobile
Radio Transceiver
Revision 9 Hardware
SERVICE MANUAL
TNM-M-E-0002
ISSUE 1.0
May 2006
ISO9001 Lic.QEC20848
SAIGlobal

SRM9000 Series Mobile Radio Transceiver Rev 9 Hardware TNM-M-E-0002 ~ Iss 1.0

SRM9000 SERIES SERVICE MANUAL
© TMC Radio 2006 page iTNM-U-E-0002 Issue 1
TABLE OF CONTENTS
APPENDICES........................................................................................................................................ III
DECLARATION.....................................................................................................................................IV
COPYRIGHT .........................................................................................................................................IV
ERRORS AND OMISSIONS..................................................................................................................IV
DOCUMENT HISTORY ..........................................................................................................................V
LIST OF ASSOCIATED PUBLICATIONS ..............................................................................................V
WARNINGS AND CAUTIONS...............................................................................................................VI
1. INTRODUCTION .......................................................................................................................... 1
1.1 GENERAL................................................................................................................................... 1
1.2SCOPE ...................................................................................................................................... 1
1.3 DESCRIPTION ............................................................................................................................. 1
1.4 PRODUCT VARIANTS AND FACILITIES ............................................................................................ 2
1.5 SOFTWARE VERSIONS AND NAMING .............................................................................................. 5
1.5.1 Filename Structure........................................................................................................... 5
1.5.2 Application Code.............................................................................................................. 5
1.5.3 Software Type Code......................................................................................................... 5
1.5.4 Version Number............................................................................................................... 7
1.5.5 Exclusions........................................................................................................................ 7
1.5.6 Displaying Software Versions........................................................................................... 7
1.5.7 Automatic Version Upgrade Prompting............................................................................. 8
1.5.8 Transceiver SW Description, Start-up and Backup-Software............................................ 9
1.5.9 Wailing Siren (Boot-up Software Corrupted)..................................................................... 9
1.6 ADJUSTMENT AND ALIGNMENT ..................................................................................................... 9
1.7 CHASSIS ASSEMBLY ................................................................................................................. 10
1.7.1 Torque Settings.............................................................................................................. 10
1.7.2 Thermal Compound Application..................................................................................... 10
1.7.3 Assembly....................................................................................................................... 10
1.8 SPECIFICATION......................................................................................................................... 10
1.8.1 General.......................................................................................................................... 10
1.8.2 Transmitter..................................................................................................................... 12
1.8.3 Receiver ........................................................................................................................ 13
1.8.4 Signalling....................................................................................................................... 14
1.8.4.1 CTCSS............................................................................................................... 14
1.8.4.2 FFSK.................................................................................................................. 15
1.8.4.3 Selcall ................................................................................................................ 15
1.8.4.4 DTMF................................................................................................................. 17
1.8.4.5 DCS ................................................................................................................... 18
1.8.4.6 C4FM ................................................................................................................. 18
1.8.5 Environmental................................................................................................................ 19
2. SERVICE PHILOSOPHY............................................................................................................ 20
2.1 SERVICE CONCEPT ................................................................................................................... 20
2.2 WARRANTY.............................................................................................................................. 20
2.2.1 Service Within and Out Of Warranty.............................................................................. 20
2.2.2 Ancillary Items............................................................................................................... 20
2.3 SOFTWARE POLICY................................................................................................................... 20

SRM9000 SERIES SERVICE MANUAL
© TMC Radio 2006 page ii TNM-U-E-0002 Issue 1
3. TECHNICAL DESCRIPTION...................................................................................................... 22
3.1RECEIVER................................................................................................................................ 22
3.1.1 Front End Filters and RF Amplifier................................................................................. 22
3.1.2 First Mixer and IF Section.............................................................................................. 22
3.1.3 Quadrature Demodulator................................................................................................ 22
3.1.4 Receiver Audio Processing ............................................................................................ 24
3.2 TRANSMITTER.......................................................................................................................... 25
3.2.1 Drivers and PA Stages................................................................................................... 25
3.2.2 Power Control ................................................................................................................ 25
3.2.3 Antenna Changeover and Harmonic Filter...................................................................... 25
3.2.4 Transmitter Audio Processing......................................................................................... 25
3.3 FREQUENCY SYNTHESISER ........................................................................................................ 26
3.3.1 General.......................................................................................................................... 26
3.3.2 PLL................................................................................................................................ 27
3.3.3 VCO’s............................................................................................................................ 27
3.3.4 Negative Bias Generator and Loop Filter........................................................................ 27
3.3.5 Phase Modulator............................................................................................................ 27
3.3.6 Reference Oscillator....................................................................................................... 28
3.4 CONTROL ................................................................................................................................ 28
3.4.1 DSP and PLA................................................................................................................. 28
3.4.2 DSP Clock Oscillator...................................................................................................... 29
3.4.3 PLA PWM...................................................................................................................... 29
3.5 MEMORY ................................................................................................................................. 29
3.6 POWER SUPPLIES..................................................................................................................... 31
3.6.1 Power On Function ........................................................................................................ 31
3.6.2 Power Supplies.............................................................................................................. 31
3.6.2.1 8V Regulator U900............................................................................................. 31
3.6.2.2 5V Regulator U901............................................................................................. 31
3.6.2.3 3.3V Regulator U912 .......................................................................................... 32
3.6.2.4 2.5V Regulator U903.......................................................................................... 32
3.6.2.5 Negative Power Supply U904E/F........................................................................ 32
3.6.2.6 Unswitched Battery (13V8_UNSW_F)................................................................. 32
4. ALIGNMENT (LEVEL 3 SERVICE ONLY).................................................................................. 33
4.1 TEST EQUIPMENT ..................................................................................................................... 33
4.2 TEST SET-UP ........................................................................................................................... 35
4.2.1 COMMS Set up.............................................................................................................. 36
4.2.2 Radio Preparation.......................................................................................................... 37
4.2.3 Alignment Procedure...................................................................................................... 38
4.2.3.1 VCO DAC Alignment .......................................................................................... 38
4.2.3.2 TCXO (Radio Netting Adjustment)...................................................................... 39
4.2.3.3 Rx Front End...................................................................................................... 40
4.2.3.4 Mute Adjustment................................................................................................. 41
4.2.3.5 RSSI................................................................................................................... 42
4.2.3.6 Tx Power............................................................................................................ 43
4.2.3.7 Modulation.......................................................................................................... 44
4.2.3.8 Programming...................................................................................................... 45
4.2.3.9 Customers Radio Personality Data ..................................................................... 45
5. REPLACEABLE PARTS............................................................................................................. 46
5.1 COMMON PARTS ...................................................................................................................... 46
5.2 BAND-SPECIFIC PARTS ............................................................................................................. 47
6. CIRCUIT DIAGRAMS ................................................................................................................. 47

SRM9000 SERIES SERVICE MANUAL
© TMC Radio 2006 page iii TNM-U-E-0002 Issue 1
6.1 ISSUE 9 CIRCUIT DIAGRAMS ...................................................................................................... 47
APPENDICES
APPENDIX A ~ GLOSSARY
APPENDIX B ~ TRANSCEIVER CONNECTIONS
APPENDIX C ~ SRM9010 MICROPHONE
APPENDIX D ~ SRM9020 MICROPHONE
APPENDIX E ~ SRM9022 MICROPHONE
APPENDIX F ~ SRM9030 CONTROL HEAD
APPENDIX G ~ ANCILLARIES

SRM9000 SERIES SERVICE MANUAL
© TMC Radio 2006 page ivTNM-U-E-0002 Issue 1
Declaration
The performance figures quoted are subject to normal manufacturing and service tolerances. The right is
reserved to alter the equipment described in this manual in the light of future technical development.
Copyright
All rights reserved. No part of this publication may be reproduced in any form or by any means without the
prior permission of TMC Radio.
Errors and Omissions
The usefulness of this publication depends upon the accuracy and completeness of the information
contained within it. Whilst every endeavour has been made to eliminate any errors, some may still exist. It
is requested that any errors or omissions noted should be reported to:
TMC Radio Pty Ltd.
1270 Ferntree Gully Road
Scoresby Vic
3179 Australia
Ph: [phone] (Direct: -3914)
Fax: [phone]
Mob: [phone]
E-mail: [email protected]
www.tmcradio.com/

SRM9000 SERIES SERVICE MANUAL
© TMC Radio 2006 page vTNM-U-E-0002 Issue 1
Document History
Issue Date Comments
1January 2006 Initial issue
List of Associated Publications
Document No. Description Issue
TNM-I-E-0005 SRM9000 Series Installation Instructions 5
TNM-P-E-004 Selcall Product Manual 2.56
TNM-U-E-0012 SRM9020 Trunk Operating Instructions 2
TNM-U-E-0013 SRM9020 PMR Operating Instructions 2
TNM-U-E-0063 SRM9022 PMR Operating Instructions 1
TNM-U-E-0014 SRM9025 PMR Operating Instructions 2
TNM-U-E-0015 SRM9025 Trunk Operating Instructions 2
TNM-U-E-0003 SRM9030 PMR Operating Instructions 2
TNM-U-E-0004 SRM9030 Trunk Operating Instructions 2
TNM-U-E-0020 SRM9030 Brief User Guide 2
TNM-U-E-0042 SRM9010 Brief User Guide 2
TNM-U-E-0043 SRM9020 Brief User Guide 2
TNM-U-E-0044 SRM9025 Brief User Guide 2

SRM9000 SERIES SERVICE MANUAL
© TMC Radio 2006 page vi TNM-U-E-0002 Issue 1
Caution
During disassembly and assembly, refer to Torque Settings in Section 1.7
Caution
Customer configuration files should be saved prior to any alignment adjustments.
Preparing the radio for alignment will erase from the radio all customer PMR and Trunking
configuration data (channel, signalling information etc). The only data retained by the
Alignment Tool is the factory alignment data for the radio (DAC settings for Tx power, front-end
tuning etc).
WARNING
SRM9000 radio equipment is to be connected only to 12-volt negative earth systems.
In vehicles
with a 24-volt supply, an approved 24V/12V converter must be used. The supply must not be
taken from a 12V tap on the battery.
WARNING
To avoid RF injury, do not touch the Antenna when the Transmitter is in use.
WARNING
Double-fused 12V Supply Leads, Antenna cables and Speaker wiring is to be routed as far
away as possible from gas or fuel lines or any electronic control device. The radio transceiver
and antenna are to be mounted as far away as possible from these devices and their cabling.
Equipment is to be installed, by a competent person, in accordance with the requirements of
local radio communications authorities and/or Health and Safety regulations.
Post installation checks should be performed to ensure that there is no effect on the operation
of the vehicle’s electronics.
WARNING
Do not operate your radio, without a handsfree kit, whilst driving a vehicle.
WARNING
Do not operate your radio in an explosive atmosphere. Obey the “Turn Off Two-way Radios”
signs where these are posted, e.g. on a petrol station forecourt.
WARNING
Compliance with RF Energy Exposure Standards: To minimise exposure to RF fields during
equipment service and repair, the antenna terminal of the SRM9000 radio should be connected
to a suitable non-radiating RF load when the transmitter is in use.
Warnings and Cautions

SRM9000 SERIES SERVICE MANUAL
© TMC Radio 2006 page 1TNM-U-E-0002 Issue 1
1. INTRODUCTION
1.1 GENERAL
The SRM9000 series of FM mobile radio transceivers is designed for PMR and Trunked operation in VHF
and UHF radio systems.
The system is available in a number of functional variants. Each variant uses the standard SRM9000
mobile transceiver, which is software configured for different control ancillaries. The software configuration
together with the type of controller (Basic or Enhanced microphone, Handset, or Alphanumeric Control
Head) determines the radio features for the different variants as follows.
PMR/Trunked
Basic Telemetry Transceiver No Display or Control Head. SRM9005
Low Range Version with Basic Fist Microphone. SRM9010
Mid Range Version with Enhanced Alphanumeric Fist Microphone. SRM9020
High-end Version with Graphics Display Handset. SRM9022
High-end Version with Alpha Display Handset. SRM9025
System Level Remote Control Head with Alpha capability and Handset /
Fist Microphone / Desk Microphone options. SRM9030
1.2 SCOPE
This manual provides technical specifications, description and servicing details for the SRM9000 series of
mobile radio transceivers together with the related microphones and control heads.
Unless specifically stated otherwise, the text and illustrations refer to all versions in the series.
1.3 DESCRIPTION
The design concept utilises wide band analogue techniques for RF transmit and receive circuitry with digital
signal processing of analogue or digital modulation and demodulation. Electronic tuning is used throughout
the mobile to eliminate manual tuning and level adjustment.
A Digital Signal Processor (DSP) and a Programmable Gate Array (PLA) are used with other dedicated
devices in the SRM9000 to perform the following functions under software control:
•Frequency Synthesis of all operating frequencies.
•Modulation and demodulation of 10/12.5/20/25kHz FM signals on a per channel basis.
•Modem functionality for specified data modulation schemes.
•Filtering, pre-emphasis, de-emphasis, limiting, compression, muting, CTCSS, Selcall or any other
frequency or level dependent signal modification.
•Serial communications with the Control Ancillaries and Alignment Tool.
•Tuning Control data for Tx and Rx.
The SRM9000 Transceiver comprises a rugged extruded aluminium sleeve, which houses a single printed
circuit board assembly and provides all heatsink requirements. The sleeve housing is closed at each end
by high-impact plastic end caps; all cable ports and mechanical interfaces are sealed against moisture and
dust ingress.
The PCB assembly comprises a single, multi-layer PCB containing all the RF and control circuitry. The
PCB seats on an extruded aluminium tray that slides into the outer aluminium sleeve where it is secured
with screws accessed from the outside of the case. Provision is made under the main PCB tray assembly
for additional hardware options as well as optional accessories plugged directly into the main PCB.
There are two installation methods available for the SRM9000. The outer aluminium extrusion has side
flanges that allow the mobile to be bolted directly to any flat surface in the vehicle. A quick release cradle is
also available.

SRM9000 SERIES SERVICE MANUAL
© TMC Radio 2006 page 2TNM-U-E-0002 Issue 1
1.4 PRODUCT VARIANTS AND FACILITIES
Product variants and facilities are detailed in Table 1-1, Table 1-2 and Table 1-3.
Table 0-1Common Features for All Variants
Feature: Model: 9005 9010 9020 9022 9025 9030
Control None or
Serial or
Parallel if
Option
Board
Display
Microphone Display Microphone Controller Microphone Display Handset
Control Unit
with
Microphone
Display -1 digit LED 6 char LCD 8x14 char
LCD
Graphics
102x64
pixels
2x12 char
LCD 8x14 char LCD
Graphics
102x64
pixels
Adjustable Display
Illumination --Yes Yes Yes Yes
Buttons and Keys -Vol Up/Down
Select
1 Function
Vol Up/Down
4 Function
Scroll
Up/Down
Vol Up/Down
6 Function
12 Keypad
Send/End
Menu + Scroll
Vol Up/Down
6 Function
12 Keypad
Send/End
Menu +
Scroll
6 Function
12 Keypad
Send/End
Menu +
Scroll
Speaker -Yes Yes Yes* Yes* Yes
Frequency Bands 66-88MHz, 136-174MHz, 174-208MHz, 208-245MHz, 335-375MHz,
400-480MHz, 440-520MHz
Channel Spacing 10/12.5/20/25kHz
Menu driven --Yes Yes Yes Yes
Customisable Menus --Yes Yes Yes Yes
* Note: Handsets have a built-in earpiece, therefore an external speaker is optional.