TMC Radio SRM9000X8 User manual

SRM9000X8 800MHz Mobile
Radio Transceiver
Revision 2 Hardware
SERVICE MANUAL
TNM-M-E-0022
ISSUE 1.0
January 2008
ISO9001 Lic.QEC20848
SAIGlobal

SRM9000X8 800MHz Mobile Radio Transceiver Rev 2 Hardware TNM-M-E-0022 Iss. 1.0

SRM9000X8 800MHz SERVICE MANUAL
© TMC Radio 2008 page i TNM-M-E-0022 Issue 1
TABLE OF CONTENTS
APPENDICES ..............................................................................................................................................III
DECLARATION .......................................................................................................................................... IV
COPYRIGHT ............................................................................................................................................... IV
ERRORS AND OMISSIONS....................................................................................................................... IV
DOCUMENT HISTORY................................................................................................................................ V
WARNINGS AND CAUTIONS.................................................................................................................... VI
1. INTRODUCTION.................................................................................................................................1
1.1 GENERAL.........................................................................................................................................1
1.2 SCOPE.............................................................................................................................................1
1.3 DESCRIPTION ...................................................................................................................................1
1.4 PRODUCT VARIANTS AND FACILITIES ................................................................................................2
1.4.1 Filename Structure ................................................................................................................4
1.4.2 Application Code ...................................................................................................................4
1.4.3 Software Type Code..............................................................................................................4
1.4.4 Version Number.....................................................................................................................6
1.4.5 Exclusions..............................................................................................................................6
1.4.6 Displaying Software Versions................................................................................................6
1.4.7 Automatic Version Upgrade Prompting.................................................................................7
1.4.8 Transceiver SW Description, Start-up and Backup-Software ...............................................8
1.4.9 Wailing Siren (Boot-up Software Corrupted).........................................................................8
1.5 ADJUSTMENT AND ALIGNMENT..........................................................................................................8
1.6 CHASSIS ASSEMBLY.........................................................................................................................9
1.6.1 Torque Settings .....................................................................................................................9
1.6.2 Thermal Compound Application............................................................................................9
1.6.3 Assembly...............................................................................................................................9
1.7 SPECIFICATION...............................................................................................................................10
1.7.1 General................................................................................................................................10
1.7.2 Transmitter...........................................................................................................................11
1.7.3 Receiver...............................................................................................................................12
1.7.4 Signalling.............................................................................................................................13
1.7.4.1 CTCSS.....................................................................................................................13
1.7.4.2 Selcall ......................................................................................................................14
1.7.4.3 DTMF.......................................................................................................................16
1.7.4.4 DCS .........................................................................................................................17
1.7.4.5 C4FM.......................................................................................................................17
1.7.5 Environmental......................................................................................................................18
2. SERVICE PHILOSOPHY..................................................................................................................19
2.1 SERVICE CONCEPT.........................................................................................................................19
2.2 WARRANTY....................................................................................................................................19
2.2.1 Service Within and Out Of Warranty...................................................................................19
2.3 SOFTWARE POLICY ........................................................................................................................19
3. TECHNICAL DESCRIPTION............................................................................................................21
3.1 RECEIVER......................................................................................................................................21
3.1.1 Front End Filters and RF Amplifier......................................................................................21
3.1.2 First Mixer and IF Section....................................................................................................21

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3.1.3 Quadrature Demodulator.....................................................................................................21
3.1.4 Receiver Audio Processing .................................................................................................23
3.2 TRANSMITTER ................................................................................................................................23
3.2.1 Drivers and PA Stages........................................................................................................23
3.2.2 Power Control......................................................................................................................24
3.2.3 Antenna Changeover and Harmonic Filter..........................................................................24
3.2.4 Transmitter Audio Processing.............................................................................................24
3.3 FREQUENCY SYNTHESISER .............................................................................................................26
3.3.1 General................................................................................................................................26
3.3.2 PLL ......................................................................................................................................26
3.3.3 VCOs...................................................................................................................................26
3.3.4 Positive Bias Generator and Loop Filter..............................................................................26
3.3.5 Phase Modulator .................................................................................................................26
3.3.6 Reference Oscillators..........................................................................................................27
3.4 CONTROL.......................................................................................................................................29
3.4.1 DSP and PLA.......................................................................................................................29
3.4.2 PLA PWM............................................................................................................................29
3.5 MEMORY........................................................................................................................................30
3.6 POWER SUPPLIES ..........................................................................................................................32
3.6.1 Power On Function..............................................................................................................32
3.6.2 Power Supplies....................................................................................................................32
3.6.2.1 8V Regulator U900..................................................................................................32
3.6.2.2 5V Regulator U901..................................................................................................32
3.6.2.3 3.3V Regulator U912...............................................................................................32
3.6.2.4 2.5V Regulator U903...............................................................................................33
3.6.2.5 Negative and Positive High Voltage Power Supply U904E/F .................................33
3.6.2.6 Unswitched Battery (13V8_UNSW_F) ....................................................................33
4. ALIGNMENT (LEVEL 3 SERVICE ONLY).......................................................................................34
4.1 GENERAL....................................................................................................................................34
4.1.1 Test Equipment ...................................................................................................................35
4.1.2 Alignment Frequencies........................................................................................................35
4.1.3 Preset Parameters...............................................................................................................36
4.1.4 Alignment Limits ..................................................................................................................39
4.1.5 Band specific frequency limits.............................................................................................39
4.1.6 SRM9000 Radio Test Interface Unit....................................................................................39
4.1.7 Test Setup ...........................................................................................................................40
4.1.8 COMMS Setup.....................................................................................................................41
4.1.9 Band Preparation.................................................................................................................42
4.1.10 Hardware Options Select...................................................................................................42
4.1.11 Radio Preparation..............................................................................................................42
4.1.12 ALIGNMENT PROCEDURE..............................................................................................43
4.1.13 VCO DAC Alignment .........................................................................................................43
4.1.14 TCXO DAC Alignment.......................................................................................................45
4.1.15 Rx Front End DAC Alignment............................................................................................46
4.1.16 Tx Filter DAC Alignment ....................................................................................................47
4.1.17 RSSI Calibration ................................................................................................................48
4.1.18 Mute DAC Adjustment.......................................................................................................49
4.1.19 Tx Power DAC Alignment..................................................................................................50
4.1.18 Tx Modulation DAC Alignment............................................................................................51
4.1.20 PROGRAMMING ALIGNMENT DATA..............................................................................53

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4.1.21 CUSTOMERS RADIO PERSONALITY DATA ..................................................................53
5. REPLACEABLE PARTS..................................................................................................................54
5.1 REPLACEABLE PARTS ....................................................................................................................54
6. SCHEMATICS...................................................................................................................................55
6.1 SRM9000 800MHZ RADIO BOARD SCHEMATICS:......................................................................55
APPENDICES
APPENDIX A ~ GLOSSARY

SRM9000X8 800MHz SERVICE MANUAL
© TMC Radio 2008 page iv TNM-M-E-0022 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: [e-mail]
www.tmcradio.com/

SRM9000X8 800MHz SERVICE MANUAL
© TMC Radio 2008 page v TNM-M-E-0022 Issue 1
Document History
Issue Date Comments
1 January 2008 Initial issue
List of Associated Publications
Document No. Description Issue
TNM-I-E-0005 SRM9000 Series Installation Instructions 6
TNM-P-E-004 Selcall Product Manual 2.56
TNM-U-E-0055 SRM9022 P25 Operating Instructions 2
TNM-U-E-0074 SRM9030 P25 Operating Instructions 2

SRM9000X8 800MHz SERVICE MANUAL
© TMC Radio 2008 page vi TNM-M-E-0022 Issue 1
Caution
During disassembly and assembly, refer to Torque Settings in Section 1.6
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 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

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1. INTRODUCTION
1.1 GENERAL
The SRM9000X8 800MHz mobile transceiver is designed for PMR operation in analog systems or P25 in digital
systems.
The SRM9000X8 transceiver can be used with either the SRM9022 Graphics Display Handset or the SRM9030
System Level Remote Control Head with Alpha capability.
1.2 SCOPE
This manual provides technical specifications, description and servicing details for the SRM9000 mobile radio
transceiver.
1.3 DESCRIPTION
The design concept utilises wide band techniques for RF transmit and receive circuitry with digital signal
processing of analog 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 12.5kHz or 25kHz FM signals or P25 digital modulation 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 basic 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.

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1.4 PRODUCT VARIANTS AND FACILITIES
Product variants and facilities are detailed in Tables 1-1, 1-2 and 1-3.
Table 1-1 Features for Control Variants
Feature: Model: 9022 9030
Control Controller
Microphone Control Unit with Microphone
Display
8x14 char LCD
Graphics 102x64
pixels
8x14 char LCD
Graphics 102x64
pixels
Adjustable Display
Illumination Yes Yes
Buttons and Keys Vol Up/Down
6 Function
12 Keypad
Send/End
Menu + Scroll
6 Function
12 Keypad
Send/End
Menu + Scroll
Speaker Yes Yes
Channel Spacing 12.5kHz/ 25kHz
Menu driven Yes Yes
Customisable Menus Yes Yes

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Table 1-2 Conventional-PMR Variants
Feature: Model: 9022 9030
Channels 1000 1000
Signalling CTCSS/DCS
Selcall CTCSS/DCS Selcall
Attack Operation Yes Yes
DTMF Encode Yes Yes
PTT Limit Timer with
warning beeps Yes Yes
Busy Channel Lockout Yes Yes
PTT Inhibit on Busy Yes Yes
Scanning 124 groups of up to 16 channels per group, 4 user defined
scan groups.
Voting Up to 200 groups consisting of up to 16 channels per
group.
Priority Scanning Yes Yes
Nuisance Delete Yes Yes
Phonebook 250 entries 250 entries
Multiax Yes Yes
Ignition Sense Input Yes Yes
VOX Handsfree Yes Option
600 Ohm Interface Option
SIB Option
ASIG Option
P25 Option

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Software Versions and Naming
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.
The SRM9000 Transceiver has three items of SW for digital and analog PMR, Trunking and Alignment.
The 9022 Controller Mic/Handsets has one SW file for its PIC and the 9030 Control Head has two SW files for its
Flash and EEPROM.
1.4.1 Filename Structure
Basically the Filename Structure is defined as follows:
• 2 character Application code
• 2 or 3 character SW Type code
• 3 character version number
• File Extension as required.
eg.
9etm533.bin
9ep_533.bin
9es_533.bin
9ecf101.hex
9ece101.hex
1.4.2 Application Code
This identifies the application the SW was initially designed for:
9e Standard SRM9000 Rev 9 Software
ae SRM9000 Rev 9 Software applicable for SRP9022
1.4.3 Software Type Code
This identifies different types of SW within an application.
s_ Startup
p_ Standard PMR. DMAP or No option board
p_s PMR with Scrambler/Discriminator option board
p_g PMR with Direct GPS
p_a PMR with ASI Map27option board
p_u PMR with ASI SUP option board
p_q PMR with ASI-G Map27option board
a__ 9022 Standard PMR. DMAP or No option board
a_s 9022 PMR with Scrambler/Discriminator option board
a_g 9022 PMR with Direct GPS
a_a 9022 PMR with ASI Map27option board
a_u 9022 PMR with ASI SUP option board

SRM9000X8 800MHz SERVICE MANUAL
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a_q 9022 PMR with ASI-G Map27option board
bo Transceiver Boot-code
bc Transceiver Boot-Backup-code
bf Transceiver PLA-code
ba Transceiver PLA-Backup-code
Note. The above file names are not stored within the code. As a consequence, when the radio is read by the FPP,
the FPP will display version numbers and release dates for the Backup, Startup, PMR and DMAP codes. The
Bootloader, PLA Backup and PLA codes show release dates only.

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1.4.4 Version Number
This is a 3-digit number allocated by Engineering to identify the SW version.
e.g. 103 = Version 1.03
1.4.5 Exclusions
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. Later releases of SW will be backward compatible, unless deliberately not so,
in which case a different directory structure/path may be implemented.
1.4.6 Displaying Software Versions
Each Transceiver SW code file (e.g. 9etm533.bin, etc.) contains version information about itself and possible
compatibility with Programming SW.
For Radio SW saved on Disk, this information can be displayed via the Programmer function:
Options : Upgrade_Software : Get_File

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For Software loaded in the radio, information can be read from the Transceiver and displayed via the
Programmer function:
Options : Radio_Information
SRM9030 Control Head SW can be displayed on the Control Head by holding the ‘3’ button down when the radio
is switched on. SRM9022 Handset SW can be displayed by pressing the top side button when the radio is
switched on.
1.4.7 Automatic Version Upgrade Prompting
When a configuration is downloaded to the Transceiver, the Programmer performs a brief check on the SW
currently installed in the radio. If a later version of SW exists (on PC hard-disk) then the Programmer will prompt
the user with the following message:
NOTE. As early versions of FPP cannot recognise a more recent revision of the radio, it is important that the latest
FPP version is downloaded from http://www.tmcradio.com.
If YES is selected, the Transceiver Radio code is updated before the new configuration is downloaded.
If NO is selected, only the configuration is downloaded.
This process also updates the Startup code to ensure it is compatible with the loaded PMR code.
Note : If the …\SRM9000\FPP\RadioSW folder contains no files, then the above check will not be performed.

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1.4.8 Transceiver SW Description, Start-up and Backup-Software
The SRM9000 Transceiver software is split into the following separate modules:
• Bootloader and Backup Software
• Start-Up Software
• PLA and PLA-Backup Software
• Mainline PMR Software
When the Transceiver starts, it basically performs the following steps:
• Initial execution starts with the Bootloader code, which attempts to load the Start-Up Software (if Start-
Up checksum is bad, then the Backup Software is loaded.)
• Start-Up Software then downloads the PLA code (or PLA-Backup code if PLA checksum is bad) to the
PLA device. If both PLA and PLA-Backup checksums are bad then the radio is not operational and serial
communication is not possible.
• Start-Up Software then reads the On/Off switch plus Ignition-Sense lines and compares these with
saved parameters to determine if the radio should be continue to power-up or switch itself off again.
• Start-Up software then attempts to load PMR Mainline Software (dependent on saved parameter) and
switches execution to complete the power-up process and start normal operation.
If the Mainline Software cannot be loaded, or a Job file configuration has not been loaded (e.g. non-existent or
checksum fail) then execution switches to Backup Software until the error is corrected (e.g. by FPPing the radio).
There are three states that the radio can configure after switch-on:
• Mainline PMR Software (normal power-up)
If the radio does not have a valid Job file configuration loaded, then it will display a “No PMR Cfg”.
• Start-Up Software (characterised by “Alignment Mode” shown on the display). This is also the code that
is running when the radio is being aligned using the Alignment Tool.
• Backup Software (via various paths from above.)
1.4.9 Wailing Siren (Boot-up Software Corrupted)
A “WAILING SIREN” sound is emitted from the Loudspeaker while the radio is running in Boot Backup Software.
In this mode the FPP can be used to re-load a Jobfile, or re-load Start-Up or Mainline Operating Software.
Simply writing a Jobfile to the radio should allow the FPP to determine and update the offending software –
however there may be instances where the FPP cannot determine this and the Start-Up and Mainline Software
should be updated manually. This can be done using the FPP : Upgrade_Software : Get_File … then Download.
Both Start-Up Software (filename = 9es_xxx.bin) and Mainline PMR (9ep_xxx.bin) should be loaded if the FPP
cannot automatically fix the problem. The wailing siren should stop once the problem is fixed.
Note: 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.
1.5 ADJUSTMENT AND ALIGNMENT
There are no manual internal adjustments in the SRM9000. Re-programming and alignment is done using
software tools with the PCB installed in its chassis. For servicing, the radio PCB can be operated outside the
chassis provided that a temporary heatsink is fitted under the transmitter PA module for transmitter servicing and
that the receiver audio output be kept below 100mW for receiver servicing. Radio performance is only slightly
affected by operating without the outer sleeve but there will be some change to performance when the metal cans
are removed from the RF sections of the board.
On re-assembly, the PA module should be checked for a thin layer of heat-conducting paste. If this is missing or
dried-out, it should be replaced prior to re-assembly.

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1.6 CHASSIS ASSEMBLY
Important Note!
1.6.1 Torque Settings
Assembly of 'Chassis' (Inner Extrusion) to 'Outer Extrusion': 1.4 Nm (PA x 2), 1.25Nm (Others x 3)
Assembly of 'Front' and 'Rear' end-caps to 'Outer Extrusion': 1.4 Nm.
1.6.2 Thermal Compound Application
Just enough thermal compound should be applied to the PA tray to provide good thermal contact with the chassis.
Note. If thermal compound is old and difficult to spread, it should be discarded.
1.6.3 Assembly
The Inner extrusion should initially be nested together with the PCB and then the assembly slid into place within
the outer extrusion.
Positioning the inner extrusion upwards by hand, it is then important to insert all screws by hand and ensure they
have been fully inserted through the PCB, thereby locating the assembly correctly.
Whilst holding the inner extrusion upwards to ensure the assembly does not twist, lightly torque up the centre
screw of the row of three followed by the PA module mounting screw towards the middle of the chassis.
The remaining screws can then be screwed up to full torque followed by re-torque of the first two screws.

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1.7 SPECIFICATION
1.7.1 General
Operation
Single frequency simplex or two-frequency simplex (half-duplex).
Modulation
Frequency modulation (phase) F3E and F1E.
Operational Temperature Range
-30°C to +60°C
Storage Temperature Range
-40°C to +80°C
Supply Voltage Requirements
10.8V to 16.32V DC negative earth (13.8V nom.)
Current Consumption
Mobile With 9022 Control Mic Mobile With 9030 Alpha Head
Radio off ≤5mA ≤5mA
Standby (squelched): ≤200mA ≤210mA*
Rx Audio O/P:
300mW ≤450mA ≤500mA *
4.0W ≤1200mA ≤1250mA*
Transmit:
25W ≤7.0A
6W ≤3.0A
*Add 100mA to current consumption for the 9030 Control Head with backlight on.
Frequency Band Frequency Range
X8 Transmit Receiver
2 Frequency
Simplex 806-825MHz 851-870MHz
Turnaround 851-870MHz 851-870MHz
Channel Spacing 12.5kHz/ 25kHz
Frequency Stability (-30°C to 60°C) Less than ±1.5ppm
Dimensions (mm) Height Width Depth
Transceiver
9022 Controller Microphone
9030 Alpha Control Head
56
145*
300
170
68
120
165
30
130
* Does not include cable or strain relief
Weight Transceiver
1.8kg

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Regulatory Approvals FCC ID: STZSRM9000X8
IC: 7068A-M9000X8
1.7.2 Transmitter
Power Output
Any two levels are programmable:
High Power: 25W Adjustable down to 1W
Low Power: 1W Adjustable up to 25W
Carrier Attack Time
Less than 50 ms
Duty Cycle
1 minute transmit: 4 minutes receive
Spurious Emissions
< -20dBm
FM Hum & Noise
25kHz Channel Spacing: >40dB
Audio Frequency Distortion < 5%.
Audio Frequency Response
300 to 3000Hz +1dB to -3dB of a 6dB/octave pre-
emphasis curve.
Audio Sensitivity (1kHz)
(User programmable via FPP) RJ8 Connector: 40mV±2dB from 470Ωsource impedance.
Option Audio: 40mV±2dB.

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1.7.3 Receiver
Sensitivity
Analog
C4FM
< -117.5dBm for 12dB SINAD
< -116dBm for 5% BER
Adjacent Channel Rejection Analog 25kHz
C4FM
>70dB
>60dB
Offset Channel Rejection (NPSPAC) >20dB
Intermodulation Rejection >70dB
Spurious Response Rejection >70dB
Blocking >90dB
Conducted Spurious Emissions <-57dBm
FM Hum & Noise (Analog 25kHz) >40dB
Mute Range
Typically 6dB to 25dB SINAD
Typical preset level 10dB ±2dB SINAD
Receiver Attack Time <150mS
Receiver Closing Time <90mS
Audio Distortion 4W into 4Ωat <5% distortion
Audio Frequency Response 300 to 3000Hz: +2dB to -8dB of a 6dB/octave de-emphasis
curve
Deviation Sensitivity
(for rated audio at 1kHz) 20% to 40% PSD