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TMC Radio SRM9010 Service Manual

Srm 9000 series fm vhf/uhf mobile radio transceiver
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TNM-M-E-0001 Issue 3
SRM 9000 Series
FM VHF/UHF Mobile
Radio Transceiver
SERVICE MANUAL
TNM-M-E-0001
ISSUE 3
November 2004
f
Page i

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Summary of Contents for TMC Radio SRM9010

  • Page 1 TNM-M-E-0001 Issue 3 SRM 9000 Series FM VHF/UHF Mobile Radio Transceiver SERVICE MANUAL TNM-M-E-0001 ISSUE 3 November 2004 Page i...
  • Page 2 TNM-M-E-0001 Issue 3 Page ii...

  • Page 3: Declaration

    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.

  • Page 4: Document History

    SRM9025 PMR Operating Instructions TNM-U-E-0015 SRM9025 Trunk Operating Instructions TNM-U-E-0003 SRM9030 PMR Operating Instructions TNM-U-E-0004 SRM9030 Trunk Operating Instructions TNM-U-E-0020 SRM9030 Brief User Guide TNM-U-E-0042 SRM9010 Brief User Guide TNM-U-E-0043 SRM9020 Brief User Guide TNM-U-E-0044 SRM9025 Brief User Guide Page iv...

  • Page 5: Warnings And Cautions

    TNM-M-E-0001 Issue 3 Warnings and Cautions 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. WARNING SRM9000 radio equipment is to be connected only to 12-volt negative earth systems.

  • Page 6: Glossary Of Terms

    TNM-M-E-0001 Issue 3 GLOSSARY OF TERMS A summary of common radio terms and some other terms used in this document, and their meanings, are given below. Trunking Signalling Specification relating to trunked networks for shared use. Used primarily for networks in France. Analogue to Digital Converter.
  • Page 7 TNM-M-E-0001 Issue 3 Channel Spacing The distance (in Hz) between the defined frequency channels. CHEKKER System Interface Specification for Trunked Networks in Germany. CLIM Call Limit Time; time limit on calls made. Normally this is defined by the Call Time Limit parameter but can by overridden by the TSC depending upon the setting of TSCLIM.
  • Page 8 TNM-M-E-0001 Issue 3 Disabled The 'False' state of a parameter. That indicates this parameter is not active. Typically this state is represented by an unmarked check box. Compare with Enabled. Digital Signal Processor. DTMF Abbreviation of Dual Tone Multi-Frequency signalling. Used to dial into Telephone networks using tone dialling.
  • Page 9 TNM-M-E-0001 Issue 3 Hash (#) digits These digits are used for two purposes: • For Selcall identities (encode and decode) - known as User Id digits. These digits are replaced by the user id entered at switch on (if enabled) •...
  • Page 10 TNM-M-E-0001 Issue 3 Password An optional password system available on the radio. This feature is only available if the radio does has a display and a keypad. To make available: go to Hardware Components, Terminal Settings and set Product Type to one which has a display and a keypad.
  • Page 11 TNM-M-E-0001 Issue 3 Roaming This is a process that allows changing between regional trunking systems which have different Operator Identities (OPID 's). Not allowed on MPT1343 Systems. RSSI Received Signal Strength Indicator. Scanning Process of switching between the channels in the nominated search group in cyclic sequence, stopping when the search condition (which may be to look for either a free or a busy channel) is satisfied.
  • Page 12 TNM-M-E-0001 Issue 3 Temporary Temporary Registration; a process carried out by the Dispatcher due to some system failure that prevents it from carrying out normal registration. The radios will recognise this temporary registration mode but will otherwise use the network in the same way as if they were registered.
  • Page 13 TNM-M-E-0001 Issue 3 Voting Feature used during searching when there is more than one channel which satisfies the required conditions. It involves examining all the channels which satisfy the required conditions, and then selecting the channel with the highest signal strength. Voice Operated Transmit.
  • Page 14 TNM-M-E-0001 Issue 3 (Intentionally Blank) Page xiv...

  • Page 15: Table Of Contents

    TNM-M-E-0001 Issue 3 Table of Contents DECLARATION............................III COPYRIGHT ..............................III ERRORS AND OMISSIONS ........................III DOCUMENT HISTORY..........................IV LIST OF ASSOCIATED PUBLICATIONS ....................IV WARNINGS AND CAUTIONS ........................V GLOSSARY OF TERMS..........................VI TABLE OF CONTENTS..........................XV INTRODUCTION..........................1.1 ............................1.1 ENERAL ............................1.1 COPE ..........................1.1 ESCRIPTION .....................1.2...
  • Page 16 TNM-M-E-0001 Issue 3 .............................3.1 ECEIVER 3.1.1 Front End Filters and RF Amplifier..................3.1 3.1.2 First Mixer and IF Section ......................3.1 3.1.3 Quadrature Demodulator .......................3.1 3.1.4 Receiver Audio Processing....................3.3 ..........................3.4 RANSMITTER 3.2.1 Drivers and PA Stages......................3.4 3.2.2 Power Control ........................3.4 3.2.3 Antenna Changeover and Harmonic Filter................3.4 3.2.4 Transmitter Audio Processing....................3.4 ........................3.6 REQUENCY...
  • Page 17 TNM-M-E-0001 Issue 3 APPENDICES APPENDIX A ~ TRANSCEIVER CONNECTIONS APPENDIX B ~ SRM9010 MICROPHONE APPENDIX C ~ SRM9020 MICROPHONE APPENDIX D ~ SRM9025 HANDSET APPENDIX E ~ SRM9030 CONTROL HEAD APPENDIX F ~ ANCILLARIES Page xvii...
  • Page 18 TNM-M-E-0001 Issue 3 (Intentionally Blank) Page xviii...

  • Page 19: Introduction

    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 Alpha Display Handset. SRM9025...

  • Page 20: Product Variants And Facilities

    TNM-M-E-0001 Issue 3 RODUCT ARIANTS ACILITIES Product variants and facilities are detailed in Table 1-1, Table 1-2 and Table 1-3. Table 1-1 Common Features for All Variants Feature: Model: 9005 9010 9020 9025 9030 Control None or Serial Display Display Display Control Unit Microphone...
  • Page 21 TNM-M-E-0001 Issue 3 Table 1-2 Conventional-PMR Variants Feature: Model: 9005 9010 9020 9025 9030 1000 100 + 1000 1000 Channels CTCSS / DCS CTCSS / DCS CTCSS / DCS CTCSS / DCS CTCSS / DCS Signalling Selcall Selcall Selcall Attack Operation DTMF Encode Fixed Seq Fixed Seq...
  • Page 22 TNM-M-E-0001 Issue 3 Table 1-3 Trunked Variants Feature: Model: 9005 9010 9020 9025 9030 1024 channels in 50 sub-bands Channels Frequency Bands Specifically : 136-174MHz, 400-450MHz (and possible in all other bands) Background Hunt and Vote-Now MPT1343 dialstrings ANN Numbering 100+ Memories User Phonebook...

  • Page 23: Oftware Ersions And Aming

    TNM-M-E-0001 Issue 3 OFTWARE ERSIONS AND AMING There are various associated items of Software (SW) required for the SRM9000 radio and programmer to operate. This section simply defines the naming rules of the SW files to allow identification and conformity. This allows different versions of SW to be distributed and co-exist without confusion.

  • Page 24: Version Number

    TNM-M-E-0001 Issue 3 Version Number 1.5.4 This is a 3-digit number allocated by Engineering to identify the SW version. e.g. Version 1.03 Exclusions 1.5.5 The Programmer SW does not follow the above rules as it is a PC based Program and its version number can be easily identified by starting the SW.

  • Page 25: Automatic Version Upgrade Prompting

    SRM9025 Handset SW has a similar method of Version identification. SRM9020 Microphone SW has a similar method of Version identification. SRM9010 Microphone does not have any method of determining loaded SW. There is only one version of this SW in the field.

  • Page 26: Transceiver Sw Description, Start-Up And Backup-Software

    TNM-M-E-0001 Issue 3 Transceiver SW Description, Start-up and Backup-Software 1.5.8 The SRM9000 Transceiver software is split into the following separate modules: • Bootloader and Backup Software • Start-Up Software • FPGA and FPGA-Backup Software (FPGA = Field Programmable Gate Array) •...

  • Page 27: Adjustment And Alignment

    TNM-M-E-0001 Issue 3 Note 3: Shorting pin-2 (to ground) of the main FLASH Memory IC, when power is applied to the radio, will also force the radio to startup in Backup Software. This may be useful in some situations. Note 4: Should these steps fail to restore the set and the Wailing Siren cease, the radio will need to be returned to a Level 3 Service Centre for FLASH replacement.

  • Page 28: Transmitter

    TNM-M-E-0001 Issue 3 Frequency Bands Frequency Range Band Frequency Range 66 - 88 MHz 335 - 375MHz 136 - 174MHz 400 - 450MHz 174 - 208MHz 440 - 512MHz 208 -245MHz 470 - 530MHz Switching Bandwidth Radio covers the complete band without retuning Channel Spacing 10/ 12.5 / 20 / 25kHz Frequency Stability...

  • Page 29: Receiver

    TNM-M-E-0001 Issue 3 Audio Frequency Distortion ≤ 3% (at 60% deviation) Audio Frequency Response 300 to 3000Hz* +1dB -3dB Figures apply for a flat audio signal or a 6dB/octave pre-emphasis curve (*2550Hz 12.5kHz channel spacing) Receiver 1.8.3 Sensitivity ≤ 0.3µV PD (-117.5dBm) for 12dB SINAD ≤0.4µV PD for 20 dB Quieting.

  • Page 30: Signalling

    TNM-M-E-0001 Issue 3 Audio Frequency Response 300 to 3000Hz*, +1dB to -3dB Figures apply for a flat audio response or a 6dB/octave de-emphasis curve (*2550Hz for 12.5kHz channel spacing) Signalling 1.8.4 1.8.4.1 CTCSS All 38 standard CTCSS Tones are supported as per the table below. Identifier Frequency Identifier...

  • Page 31: Ffsk

    TNM-M-E-0001 Issue 3 Decoder Not greater than ±3.0% Bandwidth Deviation Sensitivity Less than 6.0% of system deviation (for decode with full RF quieting) Noise Immunity Less than 500ms dropout per minute at 10dB sinad (CTCSS tone deviation 10% of system deviation. RF deviation 60% at 1000Hz).
  • Page 32 TNM-M-E-0001 Issue 3 Selcall Tone Frequency Table Tone ST500 SIGTEC SIGTEC SEPAC ST500 SIGTEC CCIR CCIR CCIR CCIRH CCIR 1981 1981 1981 1981 1981 1981 1981 1981 1124 1124 1124 1124 1124 1124 1124 1124 1197 1197 1197 1197 1197 1197 1197 1197...

  • Page 33: Dtmf

    TNM-M-E-0001 Issue 3 Tone SEPAC ST500/CML ST500 SIGTEC SIGTEC SEPAC ST500 ZVEI-3 ZVEI-3 DZVEI DZVEI NATEL 2200 2400 2200 2200 1633 1060 1060 1160 1060 1060 1160 1270 1160 1160 1023 1023 1023 1270 1400 1270 1270 1164 1164 1164 1400 1530 1400...

  • Page 34: Dcs

    TNM-M-E-0001 Issue 3 1.8.4.5 DCS Data rate 134 bits per second, frequency modulated 7.46ms/bit 171.6ms per codeword continuously repeating Deviation 0.5kHz for 12.5kHz systems 1kHz for 25kHz systems Codeword size 23 bits comprising: 8 bits - DCS code (3 octal digits 000-777) 3 bits - Fixed octal code 4 11 bits - CRC (error detection) code Available Codes...

  • Page 35: Environmental

    TNM-M-E-0001 Issue 3 Environmental 1.8.5 Note: Operation of the equipment is possible beyond the limits stated but is not guaranteed. Operational Temperature -30°C to +60°C Storage Temperature -40°C to +80°C Vibration Specification IEC 68-2-6 with additional frequency acceleration from 60 – 150 Hz Cold IEC 68-2-1 Test 5 hours at -10°C Dry Heat...
  • Page 36 TNM-M-E-0001 Issue 3 (Intentionally Blank) 1 ~ INTRODUCTION Page 1.18...

  • Page 37: Service Philosophy

    It is a requirement that once the customer has purchased equipment, TMC Radio can follow this by providing an ongoing, high level of customer support together with a competitive and professional servicing activity.
  • Page 38 TNM-M-E-0001 Issue 3 The customer undertakes not to disclose any part of the software to third parties without the Company's written consent, nor to copy or modify any software. The Company may, at its discretion, carry out minor modifications to software. Major modifications may be undertaken under a separate agreement, and will be charged separately.

  • Page 39: Technical Description

    TNM-M-E-0001 Issue 3 TECHNICAL DESCRIPTION ECEIVER Refer to Figure 3-1. Front End Filters and RF Amplifier 3.1.1 The receiver input signal from the antenna passes through the antenna filter comprising L582, L584, L585 and associated tuning capacitors. With the mobile in receive mode, diodes D580, D540a and D541a in the antenna switch are reverse biased allowing the receiver input signal to be coupled through to the front end with minimal loss.
  • Page 40 TNM-M-E-0001 Issue 3 Figure 3-1 VHF/UHF Receiver Block Diagram 3 ~ TECHNICAL DESCRIPTION Page 3.2...

  • Page 41: Receiver Audio Processing

    TNM-M-E-0001 Issue 3 Receiver Audio Processing 3.1.4 All receiver audio processing and filtering functions are performed by the CODEC U800 under the control of the DSP. The receiver I and Q analog baseband signals are converted to digital signals by the CODEC ADC before being applied to a series of digital filters which provide the final stage of adjacent channel filtering, high pass and low pass filtering and mute noise processing for narrow and wideband operation.

  • Page 42: Transmitter

    TNM-M-E-0001 Issue 3 RANSMITTER Refer to Figure 3-2. Drivers and PA Stages 3.2.1 The RF output level from the VCO buffer Q604 is typically +5dBm (UHF) and +8dBm (VHF). TX buffer Q606 increases this level by approximately 3dB (UHF) and 11dB (VHF) and also provides additional VCO isolation. The following section of the TX buffer Q612 is controlled by the transmitter power control loop and Q609.
  • Page 43 TNM-M-E-0001 Issue 3 Figure 3-2 VHF/UHF Transmitter Block Diagram 3 ~ TECHNICAL DESCRIPTION Page 3.5...

  • Page 44: Frequency Synthesiser

    TNM-M-E-0001 Issue 3 REQUENCY YNTHESISER General 3.2.5 The SRM9000 frequency synthesiser consists of individual transmitter and receiver (local oscillator) voltage controlled oscillators, loop filter, varactor negative bias generator, reference oscillator and an integrated, dual phase locked loop device U702. 3.2.6 The PLL device contains two prescalers, programmable dividers and phase comparators to provide a main and auxiliary PLL.

  • Page 45: Reference Oscillator

    TNM-M-E-0001 Issue 3 Reference Oscillator 3.2.10 TCXO U700 determines the overall frequency stability and frequency setting of the radio. The frequency setting is achieved by adjusting its ADJ voltage with the Alignment Tool. In addition, the ADJ input is used in a frequency control loop with the receiver I and Q signals to provide receiver AFC.
  • Page 46 TNM-M-E-0001 Issue 3 Figure 3-3 VHF/UHF Synthesiser, Block Diagram 3 ~ TECHNICAL DESCRIPTION Page 3.8...

  • Page 47: Control

    TNM-M-E-0001 Issue 3 ONTROL Refer to Figure 3-4. DSP and FPGA 3.3.1 The SRM9000 transceiver operates under the control of a DSP (U201) and FPGA (U300) combination that together with a number of other dedicated devices perform all the operational and processing functions required by the radio.
  • Page 48 TNM-M-E-0001 Issue 3 Figure 3-4 VHF/UHF Control Block Diagram 3 ~ TECHNICAL DESCRIPTION Page 3.10...

  • Page 49: Power Supplies

    TNM-M-E-0001 Issue 3 OWER UPPLIES Power On Function 3.5.1 The unregulated 13.8V DC input (13V8_UNSW_F) is routed directly to all high current devices and is then switched via FET Q900 to provide BAT_SW supply for all other circuits. The output from Q900 feeds four, low drop out series regulators and associated switched and auxiliary supplies that along with a negative voltage generator, provides all the switched power requirements of the transceiver.

  • Page 50: Regulator U912

    TNM-M-E-0001 Issue 3 3.5.2.3 +3.3V Regulator U912 Regulated +3.3V supply (3V3) • Digital supply for CODEC U800 • FPGA U300 Regulated +3.3V supply (3Q3) • I Q demodulator U401 Regulated +3.3V supply (3C3) • Analog supply for CODEC U800 Regulated +3.3V supply (3P3) •...

  • Page 51: Alignment (Level 3 Service Only)

    TNM-M-E-0001 Issue 3 ALIGNMENT (LEVEL 3 SERVICE ONLY) This procedure is applicable to all versions of SRM9000 mobile transceivers. Caution 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).
  • Page 52 TNM-M-E-0001 Issue 3 AF Generator BNC (F) Connector SRM9000 White (8) RJ45 22uF to 47uF (Not Used) Tant. or Elect White Green(4) 470E Mic Audio in DB25 Orange Ground Black Handset AF Output 13.8V Switched Green Mic Ground Yellow On/Off Blue Rx Data PRM80...

  • Page 53: Test Set

    TNM-M-E-0001 Issue 3 Noise & Distortion Meter SRM9000 SRM9000 Speaker O/P Breakout (DB15M) SRM9000 Programming RJ45 Alignment Breakout 13.8V DC Power Supply Antenna Skt Coax (<200 mm) Generator Radio Transceiver Test 9000_49 Figure 4-3 Test Set-up Connect the radio to the test equipment as shown in Figure 4-3. Switch on the DC Power Supply.

  • Page 54: Comms Set Up

    TNM-M-E-0001 Issue 3 COMMS Set up 4.2.1 Copy the SRM9000 Alignment Tool Computer Software file to the PC hard drive and run the program The Alignment Tool Opening Menu is displayed. Go to the Options menu and choose Comms Setup. The Comms Setup dialogue box is displayed.

  • Page 55: Radio Preparation

    TNM-M-E-0001 Issue 3 Radio Preparation 4.2.2 Radio parameters are to be aligned sequentially as detailed in this procedure. At the Opening Menu, select the Align Menu and choose Prepare/Read Radio. The WARNING is displayed. Choose No if you want to save the configuration and use the FPP software to read and save the data to a file.

  • Page 56: Alignment Procedure

    TNM-M-E-0001 Issue 3 Alignment Procedure 4.2.3 Radio alignment must be done in the sequence detailed in the following paragraphs. This alignment assumes that the radio is functioning normally. 4.2.3.1 VCO DAC Alignment Select the VCO DAC page. Select Auto Align. The Synth DAC Rx slider will automatically adjust its value for each receiver alignment frequency to set the VCO loop filter value between 140 and 150.

  • Page 57: Tcxo (Radio Netting Adjustment)

    TNM-M-E-0001 Issue 3 4.2.3.2 TCXO (Radio Netting Adjustment) Select the Mute/TCXO page. Select PTT. Adjust the TCXO slider to ensure that the transmit frequency error is within normal tolerance for the selected channel (to be measured on the RF Test Set frequency counter). 4 ~ ALIGNMENT Page 4.7...

  • Page 58: Rx Front End

    TNM-M-E-0001 Issue 3 4.2.3.3 RX Front End Select the Rx Front End Page Ensure that the TCX0 Alignment has been done before proceeding with this section. Select Open Mute. Set the Volume slider to 15. Speaker audio should now be visible on the CRO, if required readjust the Volume slider to a suitable level.

  • Page 59: Mute Adjustment

    TNM-M-E-0001 Issue 3 4.2.3.4 Mute Adjustment Select the Mute/TCXO page and select Open Mute.. Set the RF signal generator to the receiver alignment frequency, and adjust the RF level such that the desired mute opening sinad (typically 10dB sinad) is achieved. Select Close Mute and remove the RF input from the radio.

  • Page 60: Rssi

    TNM-M-E-0001 Issue 3 4.2.3.5 RSSI Select the RSSI Cal page. Set the Signal Generator for a RF output level of -90dBm at the specified frequency. Activate the RSSI button. The receiver RSSI threshold setting is calibrated. 4 ~ ALIGNMENT Page 4.10...

  • Page 61: Tx Power

    TNM-M-E-0001 Issue 3 4.2.3.6 TX Power Select Tx Power/Mod page. Select Channel 0. Select the 25W-power level. Press the PTT button. Adjust the Tx Final Value slider for a power output of 25W. The supply current shall be less than 7.5A. Select the 5W-power level.

  • Page 62: Modulation

    TNM-M-E-0001 Issue 3 4.2.3.7 Modulation Select Tx Power/Mod page. Select Channel 0. Select the 1W power level. Set the microphone input signal from the Audio Generator to 1000Hz at 400 mV RMS. Adjust the VCO Modulation Limit slider for a deviation of ±2.05kHz Reduce the microphone input level to 40mV RMS and check that the deviation is within the range ±1.25 kHz to ±1.75 kHz.

  • Page 63: Programming

    TNM-M-E-0001 Issue 3 4.2.3.8 Programming When all channels have been aligned the radio is programmed with the new alignment data: Select Align and choose Write Alignment. A warning message is displayed. Choose Yes. New alignment data is written to the radio. 4.2.3.9 Customers Radio Configuration Data If the Customers Radio Configuration Data was stored in an FPP file, use the SRM9000 Configuration Programmer to write this data to the radio.

  • Page 65: Replaceable Parts

    TNM-M-E-0001 Issue 2 REPLACEABLE PARTS 9000_51 Figure 5-1 Replaceable Parts OMMON ARTS Ident Description Quantity per Part Number Assembly Case 3513-901-70071 End Cap, Rear 3513-903-91082 Screw End Cap 3513 993 85009 Screw Tray Retention M3 x 16 3513 993 57117 Screw Tray Retention M3 x 12 3513 993 57116 Label Transceiver Top...

  • Page 66: Band Specific Parts

    TNM-M-E-0001 Issue 3 PECIFIC ARTS Ident Description Quantity per Part Number Assembly Tx PA Module U500 (E0 Band) 6102 861 00111 Tx PA Module U500 (AC Band) 6102 861 00011 Tx PA Module U500 (TK Band) 6102 861 00031 Tx PA Module U500 (R1 & R2 Band) 6102 861 00021 Tx PA Module U500 (UW &...

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