Simoco Wireless Solutions SRM9000X8 800 MHZ ANALOGUE AND DIGITAL TRANSCEIVER User Manual USERS MANUAL

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USERS MANUAL

SRM9000X8 800MHz Mobile

Radio Transceiver

Revision 2 Hardware

SERVICE MANUAL

TNM-M-E-0022

ISSUE 1.0

January 2008

ISO9001 Lic.QEC20848

S AI Glob al

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

SRM9000X8 800MHz SERVICE MANUAL

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

SRM9000X8 800MHz SERVICE MANUAL

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

SRM9000X8 800MHz SERVICE MANUAL

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

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.

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: +61 3-9730-3800 (Direct: -3914)

Fax: +61 3-9730-3968

Mob: +61 408-160-661

E-mail: jkuhrt@tmcradio.com

www.tmcradio.com/

SRM9000X8 800MHz SERVICE MANUAL

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

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

SRM9000X8 800MHz SERVICE MANUAL

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.

SRM9000X8 800MHz SERVICE MANUAL

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

SRM9000X8 800MHz SERVICE MANUAL

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

SRM9000X8 800MHz SERVICE MANUAL

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

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.

SRM9000X8 800MHz SERVICE MANUAL

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

SRM9000X8 800MHz SERVICE MANUAL

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.

SRM9000X8 800MHz SERVICE MANUAL

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.

SRM9000X8 800MHz SERVICE MANUAL

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.

SRM9000X8 800MHz SERVICE MANUAL

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

145*

300

170

120

165

130

* Does not include cable or strain relief

Weight

Transceiver

1.8kg

SRM9000X8 800MHz SERVICE MANUAL

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 470Ω source impedance.

Option Audio: 40mV±2dB.

SRM9000X8 800MHz SERVICE MANUAL

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 4Ω at <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

SRM9000X8 800MHz SERVICE MANUAL

1.7.4 Signalling

1.7.4.1 CTCSS

38 standard CTCSS Tones and 13 non-standard tones are supported as per the table below:

Standard

Frequencies

Standard

Frequencies

Standard

Frequencies

Non-Standard

Frequencies

67.0 107.2 167.9 69.3

71.9 110.9 173.8 150.0

74.4 114.8 179.9 159.8

77.0 118.8 186.2 165.5

79.7 123.0 192.8 171.3

82.5 127.3 203.5 177.3

85.4 131.8 210.7 183.5

88.5 136.5 218.1 189.9

91.5 141.3 225.7 196.6

94.8 146.2 233.6 199.5

97.4 151.4 241.8 206.5

100 156.7 250.3 229.1

103.5 162.2 254.1

CTCSS Encoder

Tone Deviation:

25kHz channel spacing: 500 to 750Hz

NPSPAC: 400 to 600Hz

Tone Distortion: Less than 5.0%

Tone Frequency Error: Less than ±0.3%

SRM9000X8 800MHz SERVICE MANUAL

CTCSS Decoder

Bandwidth Complies with TIA-603 part 3.4.6

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).

False Decode Rate Less than 1 false decode per 30 minutes (no carrier input).

Blocking For no dropouts in one minute, interfering tone at 90% of system deviation

(CTCSS tone at 10% of system deviation) as follows:

Full quieting signal: 310Hz to 3000Hz

20dB SINAD RF signal: 320Hz to 3000Hz

12dB SINAD RF signal: 350Hz to 3000Hz

Attack Time Less than 250ms (tone frequency >100Hz)

Less than 350ms (tone frequency <100Hz)

Closing Time Less than 250ms

Squelch Tail Elimination Less than 50ms

1.7.4.2 Selcall

The following tone sets are supported as per tables below:

• ST-500: CCIR, EEA, ZVEI, DZVEI, EIA

• ST500/CML: ZVEI_3, DZVEI

• CML: CCIR, EEA, ZVEI

• SIGTEC: CCIR, CCIRH, EEA, ZVEI_1, XVEI_2, ZVEI_3, NATEL, EIA

• SEPAC: CCIR, EEA, ZVEI_1, ZVEI_2, ZVEI_3, EIA

SRM9000X8 800MHz SERVICE MANUAL

Selcall Tone Frequency Table

Tone CML ST500 SIGTEC SIGTEC SEPAC CML ST500 SIGTEC

CCIR CCIR CCIR CCIRH CCIR EEA EEA EEA

0 1981 1981 1981 1981 1981 1981 1981 1981

1 1124 1124 1124 1124 1124 1124 1124 1124

2 1197 1197 1197 1197 1197 1197 1197 1197

3 1275 1275 1275 1275 1275 1275 1275 1275

4 1358 1358 1358 1358 1358 1358 1358 1358

5 1446 1446 1446 1446 1446 1446 1446 1446

6 1540 1540 1540 1540 1540 1540 1540 1540

7 1640 1640 1640 1640 1640 1640 1640 1640

8 1747 1747 1747 1747 1747 1747 1747 1747

9 1860 1860 1860 1860 1860 1860 1860 1860

A 2400 1055 2110 2400 2400 1055 1055 2110

B 930 .... 2400 930 1055 930 .... 1055

C 2247 2400 1055 2247 2247 2247 2400 2400

D 991 .... 2247 991 991 991 .... 2247

E 2110 2110 930 2110 2110 2110 2110 930

F .... .... 991 1055 .... .... .... 991

Tone SEPAC CML ST500 SIGTEC SEPAC SIGTEC SEPAC SIGTEC

EEA ZVEI ZVEI ZVEI-1 ZVEI-1 ZVEI-2 ZVEI-2 ZVEI-3

0 1981 2400 2400 2400 2400 2400 2400 2200

1 1124 1060 1060 1060 1060 1060 1060 970

2 1197 1160 1160 1160 1160 1160 1160 1060

3 1275 1270 1270 1270 1270 1270 1270 1160

4 1358 1400 1400 1400 1400 1400 1400 1270

5 1446 1530 1446 1446 1446 1446 1446 1400

6 1540 1670 1670 1670 1670 1670 1670 1530

7 1640 1830 1830 1830 1830 1830 1830 1670

8 1747 2000 2000 2000 2000 2000 2000 1830

9 1860 2200 2200 2200 2200 2200 2200 2000

A 1055 2800 970 2600 2800 970 885 2400

B 970 810 .... 2800 970 885 741 885

C 2247 970 2800 741 885 741 2600 741

D 2400 886 .... 970 .... 2600 .... 2600

E 2110 2600 2600 810 2600 2800 970 2800

F .... .... .... 886 .... 600 .... 600

SRM9000X8 800MHz SERVICE MANUAL

Tone SEPAC ST500/CML ST500 SIGTEC SIGTEC SEPAC ST500

ZVEI-3 ZVEI-3 DZVEI DZVEI NATEL EIA EIA EIA

0 2200 2400 2200 2200 1633 600 600 600

1 970 1060 970 970 631 741 741 741

2 1060 1160 1060 1060 697 882 882 882

3 1160 1270 1160 1160 770 1023 1023 1023

4 1270 1400 1270 1270 852 1164 1164 1164

5 1400 1530 1400 1400 941 1305 1305 1305

6 1530 1670 1530 1530 1040 1446 1446 1446

7 1670 1830 1670 1670 1209 1587 1587 1587

8 1830 2000 1830 1830 1336 1728 1728 1728

9 2000 2200 2000 2000 1477 1869 1869 1869

A 885 885 2600 825 1805 459 2151 2151

B 741 .... .... .... 1995 2151 1091 ....

C 2600 810 886 2600 1300 2600 2400 2010

D .... .... 810 .... 1700 2010 .... ....

E 2400 970 2400 2400 2175 2433 459 459

F .... .... .... .... 2937 2292 .... ....

Selcall Tone Periods

4 preset lengths selectable: 20ms to 4 seconds in 1ms increments.

1.7.4.3 DTMF

DTMF Encode supported via keypad:

TONES 1209Hz 1336Hz 1477Hz

697Hz 1 2 3

770Hz 4 5 6

852Hz 7 8 9

941Hz * 0 #

Tone Period, programmable: 0 – 2.55s in 10ms steps.

Inter-Tone Period, programmable: 0 – 2.55s in 10ms steps.

Link Establishment Time, programmable: 0 - 10s in 10ms steps.

Tx Hang Time, programmable: 0 – 9.99s in 10ms steps.

Side-Tone in Loudspeaker: selectable via programmer

SRM9000X8 800MHz SERVICE MANUAL

1.7.4.4 DCS

Data rate 134 bits per second, frequency modulated

7.46ms/bit

171.6ms per codeword continuously repeating

Deviation 500 to 1000Hz for 25kHz channel spacing

400 to 800Hz (NPSPAC)

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 104 codes from 512 theoretically possible codes – see below

Turn off code 200ms 134Hz tone at PTT release

DCS Codes can be Transmitted “Normal” or “Inverted” (programmable).

The radio can receive DCS codes in either Transmitted “Normal” or “Inverted” or both (selectable via programmer).

Valid DCS Codes

023 132 255 413 612

025 134 261 423 624

026 143 263 431 627

031 145 265 432 631

032 152 266 445 632

036 155 271 446 654

043 156 274 452 662

047 162 306 454 664

051 165 311 455 703

053 172 315 462 712

054 174 325 464 723

065 205 331 465 731

071 212 332 466 732

072 223 343 503 734

073 225 346 506 743

074 226 351 516 754

114 243 356 523

115 244 364 526

116 245 365 532

122 246 371 546

125 251 411 565

131 252 412 606

1.7.4.5 C4FM

Digital speech format in accordance with TIA/EIA 102 requirements.

SRM9000X8 800MHz SERVICE MANUAL

1.7.5 Environmental

Note: Operation of the equipment is possible beyond the limits stated but is not guaranteed.

Operational Temperature

-30°C to +60°C MIL-STD-810F Methods 501.4 and 502.4, Proc II

Storage Temperature

-40°C to +80°C MIL-STD-810F Methods 501.4 and 502.4 Proc I

Vibration Stability

MIL-STD-810F Method 514.5C-1, Proc I, Cat 4 and USFS Vibration Standard

Cold

MIL-STD-810F Method 502.4, Proc II

High Temperature

MIL-STD-810F Method 501.4, Proc II

Humidity

MIL-STD-810F Method 507.4-1

Low Pressure

Storage MIL-STD-810F Method 500.4, Proc I

Operational MIL-STD-810F Method 500.4, Proc II

Sand and Dust

MIL-STD-810F Method 510.4, Procedures I and II

Shock

MIL-STD-810F Method 516.5, Proc I

Product Sealing

MIL-STD-810F Method 505.4, Proc III

(Equivalent to IEC529 rating IP54)

SRM9000X8 800MHz SERVICE MANUAL

2. SERVICE PHILOSOPHY

2.1 SERVICE CONCEPT

The SRM9000 series has been designed to provide low cost analog and digital speech mobile transceivers, using

common core electronics, software and interfacing. 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.

There are three levels of service available:

Level Activity Recommended Spares Recommended Test

Equipment

1 Replacement of complete

transceiver/antenna/fuses

Reprogramming

Antennas, Fuses

Ancillaries Multimeter P.C.

Radio software

Programmer

2 Replacement of PCB or

mechanical component

replacement, Cosmetic repair

Listed in Level 2 Spares

Schedule As above + service aids and

test equipment

3 Repair by PCB or mechanical

component replacement,

Cosmetic repair.

Repair of Radio PCB to

component level in CRU.

Listed in Level 2 Spares

Schedule

Radio PCB components

only available to CRU.

As above + service aids and

test equipment

2.2 WARRANTY

Initially, the normal 12-month warranty will apply to all radios and ancillaries.

2.2.1 Service Within and Out Of Warranty

The field Service Level for the SRM9000 mobile is LEVEL 2, PCB replacement.

LEVEL 2 Service, PCB (only) and case part replacement, will be carried out in field repair workshops, or the

Central Repair Unit (CRU) if required.

LEVEL 3 Service (Radio PCB component level repair) will ONLY be carried out in the Central Repair Unit. For

this, the complete radio must be returned to the CRU.

A PCB replacement program may be offered by the CRU in some countries.

2.3 SOFTWARE POLICY

Software provided by TMC Radio shall remain the Company's property, or that of its licensors, and the customer

recognises the confidential nature of the rights owned by the Company.

The customer is granted a personal, non-exclusive, non-transferable limited right of use of such software in

machine-readable form in direct connection with the equipment for which it was supplied only.

In certain circumstances the customer may be required to enter into a separate licence agreement and pay a

licence fee, which will be negotiated at the time of the contract.

SRM9000X8 800MHz SERVICE MANUAL

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.

All software is covered by a warranty of 3 months from delivery, and within this warranty period the Company will

correct errors or defects, or at its option, arrange free-of-charge replacement against return of defective material.

Other than in the clause above, the Company makes no representations or warranties, expressed or implied such,

by way of example, but not of limitation regarding merchantable quality or fitness for any particular purpose, or that

the software is error free, the Company does not accept liability with respect to any claims for loss of profits or of

contracts, or of any other loss of any kind whatsoever on account of use of software and copies thereof.

SRM9000X8 800MHz SERVICE MANUAL

3. TECHNICAL DESCRIPTION

3.1 RECEIVER

Refer to Figure 3-1.

3.1.1 Front End Filters and RF Amplifier

The receiver input signal from the antenna passes through the harmonic filter and antenna T/R switch. With the

mobile in receive mode, diodes D580, D582 and D583 in the antenna switch are reverse biased allowing the

receiver input signal to be coupled through to the receiver front-end with minimal loss. The overall insertion loss of

the harmonic filter and switch is approximately 0.8dB.

The signal is then fed through SAW bandpass filter (Z400) to the input of the RF amplifier (Q404). The SAW filter

bandpass covers 851MHz to 870MHz. The RF amplifier stage comprises a low noise transistor amplifier (Q404)

that is compensated to maintain good linearity and low noise matching; this provides excellent intermodulation and

blocking performance across the full operating range. The overall gain of the front-end is approximately 9dB.The

RF amplifier has constant current bias controlled by Q402. The output of the RF amplifier is coupled through a

varactor-tuned bandpass filter comprising of two ceramic resonators (Z430 and Z431). The varactors have

individual PWM tuning voltages, TUNE 1 and TUNE 2, that are derived from PLA (U300). The tuning voltages

values for the filter varactors are controlled by the alignment data stored in the radio. The DSP processes these

data to optimise the filter tuning for each of the programmed channel frequencies.

A negative bias supply originates from the DSP/PLA as a PWM signal for the two filter tuning voltages for the

specific channel frequency selected. The PWM signal, which is dependent on channel frequency and tuning,

passes through level shifting transistors Q451 to Q454, where it is converted to a negative voltage in the range

-0.5V to -11.5V. The -12.0V rail for the level translators is generated by U904E/F, with D903 to D906 providing the

required voltage multiplication.

3.1.2 First Mixer and IF Section

The output of the ceramic resonator pair is then fed into U441, a high performance passive mixer that converts the

RF signal to a IF of 45MHz. The first local oscillator injection level is typically +8dBm with high side injection.

Following the mixer is a IF amplifier (Q461) that provides approximately 15dB of gain and, in association with its

output circuitry, presents the required load conditions to the 4 pole 45MHz crystal filters Z471A/Z471B.

The crystal filters provide part the total required selectivity for adjacent channel operation with the remaining

selectivity provided by a DSP bandpass filter algorithm.

3.1.3 Quadrature Demodulator

Additional IF gain of approximately 44dB occurs in U481, which is a dedicated IF AGC Amplifier and Quadrature

Demodulator. The AGC voltage for U481 is derived from the RSSI function of the DSP. The onset of AGC

operation occurs when RF input signal level at the antenna connector exceeds -90dBm and can reduce the gain

by approximately 100dB for strong signals.

Conversion of the 45MHz IF signal to I and Q baseband signals is carried out by the demodulator section of U481.

The 90MHz second local oscillator signal for U481 is generated by VCO Q730, which is phase locked by the PLL

CPIF output of U721, via feedback signal FINIF.

SRM9000X8 800MHz SERVICE MANUAL

Antenna

Switch

D581/

582/D583

Bandpass

Filter

Z400

RF Amp

Q404

Bandpass

Filter

Mixer

U441

IF Amp

Q461

4-Pole

45 MHz

Filters

Z471A/B

Antenna

Filter

L592,L593

& L594

Demodulator

U481

TX/RX

Switch

D641/

D642

RX VCO

Q623

VCO

Buffer

Q631/

Q632

Synthesiser

Buffer

Q640

90 MHz

VCO

Q730

RX/TX

Switch

U801C

CODEC

U800

Tx/Disc

Switch

U801B

Speaker

Switch

Q810/

811/Q813

Speaker

Amp

U805

AF Amp

U803B

VCO Control Volts

To TX Mixer FINIF

to U721

From PLA/DSP

TX Mod Out

To TX VCO

SPKR_ON

SPKR_OUT 1

SPKR_OUT 2

From PLA TUNE_1 & 2

To TX PA

Tx Audio

from

PLA

U300

from U721

CPIF

Aux Gain

Switch

U806A

AF Amp

U803A

Rx Audio

Mode 2

U302C

Rx Audio

Mode1

U806C

GAIN

De-

emphasis

Network

Rx Audio

Gate

U302B

Rx Audio

Mode3

U806B

AUDIO_OUT 3

(Option Audio)

AUDIO_OUT 1

(Option Audio)

AUDIO_OUT 2

( H/S Audio)

EN 1

EN 2

EN 3

Synthesiser

U721

RX_PSU

EN 4

AF Amp

U802A

CPP

TX_MOD

AGC

TX_MODEfrom

PLA

U300

DATA_EN

Differential

Amp

U491

Figure 3-1 Receiver Block Diagram

SRM9000X8 800MHz SERVICE MANUAL

3.1.4 Receiver Audio Processing

The baseband audio from the IQ Demodulator is applied to a differential amplifier (U941A/ U941B) that converts

the balanced demodulator I and Q output signals to unbalanced inputs for the CODEC (U800).

All receiver audio processing and filtering functions are performed by the CODEC 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 that provide the final stages of adjacent channel filtering, high pass and low pass

audio filtering, mute noise processing, and volume control level for narrow and wideband operation. The fully

processed signal is then converted to an analog audio signal by the CODEC DAC and then applied to conventional

audio amplifiers (U803A/B) and the loudspeaker amplifier (U805).

In addition, Discriminator Audio is derived from the second CODEC output channel and then amplified by U802A

after which it is applied to one of the radio I/O connectors for option purposes. Discriminator Audio is a preset level

set by the FPP and is independent of squelch operation.

There are two speaker options available, a half-bridged configuration using a speaker across balanced output

SPKR OUT1 and 2, which provides an audio output level of up to 4 watts into 4 ohms. The other option is a full

bridge configuration using a high power speaker across SPKR OUT1 and 2 and providing an audio output level of

up to 10 watts into 8 ohms; this high power option is enabled by adding 0 ohm resistor, R859. The carrier and

signalling mute functions are performed by Q810/Q811/Q813 under DSP control. De-emphasis to the audio PA

(U805) is performed by R861 and capacitor C872. Flat audio is provided to connector S1-6 via amplifier U803A.

3.2 TRANSMITTER

Refer to Figure 3-2.

3.2.1 Drivers and PA Stages

The carrier frequency for the transmitter is generated by combining the receiver first LO with the receiver second

LO in TX mixer (U650).

The output of the mixer (U650) is fed into a broadband amplifier (U670) via a tuned filter comprising of varactors

D660 and D661, to reduce the unwanted mixer products. The tuning voltage for the filter varactors, TUNE 1N, is

derived from level translators Q451 and Q452. U670 amplifies signals from 806MHz to 825MHz for two frequency

simplex applications and 851MHz to 870MHz for turnaround operation. The output of U670 connects to a diode

switch arrangement consisting of D681 to D684; this switch is used to select pairs of SAW filters on either the 806

to 825MHz band with Z681 and Z683, or the 851 to 870MHz band with Z682 and Z684. The diode switch is

controlled by transistors Q681 and Q682.

The carrier signal level at the output of the SAW filters is approximately –7dBm. This signal is then further

amplified in subsequent broadband stages Q691 to approximately +2dBm, Q501 to +15dBm, Q521 to +17dBm

and Q531a to +20dBm. Each of these stages has a resistive attenuator network to provide isolation from the

affects of transient load impedance changes. The output of final driver (Q531a) is fed through a resistive network

consisting of R536, R537 and R538, to the input of the broadband power amplifier module (U561) at a level of

approximately +16dBm.

The PA module (U561) contains three MOSFET stages to achieve the required maximum RF output power level of

+44.4dBm (27.5 watts).

Note: Care should be taken during servicing, since if for any reason the drive power is lost while the power control

voltage is high, the current into the PA may exceed its specification. Therefore the power supply current limit

should be monitored at all times and preset to as low as required. The radio has some additional inbuilt

safeguards, but these should not be relied on.

Final power output settings are derived from alignment data stored in flash memory during the initial factory

alignment. The DSP processes these data to optimise the power output level relative to the selected programmed

channel frequencies.

PA current is monitored via comparator U551B, the output of which is passed via a temperature compensation

network R552, R553 and NTC R554, to the ADC, U301C. U301C samples the applied voltage and then passes it

to the PLA, after which it is processed by the DSP. The PA current limit value is calibrated as part of the alignment

procedure.

SRM9000X8 800MHz SERVICE MANUAL

3.2.2 Power Control

The final output power is stabilised by a power control feedback loop. A printed circuit transmission line, L561,

resistor R560, diodes D561A and D561B, and other associated components, form the power detector. Comparator

U551A and associated components provide the power setting and power control functions. Forward and reverse

power is sampled by the power detector and applied as a DC voltage to the inverting input of the comparator. The

TX_PWR set voltage is a DC voltage proportional to the programmed Tx power setting and is applied to the non-

inverting input of the comparator.

The TX_PWR calibration voltage originates from the PLA as a PWM signal and is integrated for application to the

comparator.

The PA module output level variation due to variations of supply voltage, output load or temperature, is detected

and applied to the comparator. The comparator proportionally adjusts the PA module bias supply and the bias

supply for the PA driver (Q531A) and thus the PA drive level. High temperature protection is provided by thermistor

R557, that progressively reduces the power level if the PA module temperature becomes excessive.

3.2.3 Antenna Changeover and Harmonic Filter

The antenna changeover circuit consisting of pin diodes D581, D582 and D583, is switched by transistors Q571,

Q572 and Q573 and associated circuitry, allowing the transmitter output to be coupled to the antenna while

providing isolation for the receiver input. With the transmitter switched on, the diodes are forward biased allowing

power to be coupled through to the antenna and isolating the receiver by grounding its input at C585. The short

circuit at the receiver input is transformed to an effective open circuit at D581, by a lumped transmission line

(L591), which minimises transmitter loading. With the transmitter switched off, the diodes are reverse biased

allowing the receiver input signal to reach the receiver front end with minimal loss. The harmonic reject, low pass

filter comprises L592, L593, L594 and associated capacitors.

3.2.4 Transmitter Audio Processing

The microphone audio input signal is applied to the radio microphone input (AUDIO_IN1) and is derived from an

external microphone and pre-amplifier that provides a typical speech signal level of 40mV RMS. U801A is a control

gate that switches between AUDIO_IN1 and OPTION_AUDIO1 to provide external audio options and data input.

U801C provides CODEC input switching which selects either the receiver “I” signal or transmitter audio/data

signals depending on the Tx/Rx mode. All pre-emphasis, filtering, compression and limiting processes for narrow

and wideband operation, are carried out in the DSP after A-D conversion by CODEC (U800). The processed

transmitter audio/data from the CODEC output at VOUTR, is applied to the VCO as a modulation signal with a

level of approximately 200mV P/P via AF Switch (U801B).

SRM9000X8 800MHz SERVICE MANUAL

Directional

Coupler

RX VCO

Q623

VCO

Buffer

Q631/

Q632

TX/RX

Switch

D641/

Q642

Driver

Q531a TX PA U561

Antenna

Switch

D581/

D582/

D583

Power

Control

Comparator

U551A

Antenna

Filter

L592/

L593/L594

To RX

Mixer

LO1_RX

ADC/DAC/

CODEC U800

TX_MOD

From PLA/DSP

RX/TX

Switch

U801C

Switch

U801A

Standard

Microphone

External Accessory

Audio

Current

Sense

U551B

TX Current Sense to

PLA

13V8_UNSW

Audio

Gate

U801B

DATA_EN

Buffer

Amp

Q521

TX/RX AF Control

From PLA

TX_MODE

Internal MIC/ External

Audio Control From

PLA

MOD_SW

CURRENT_SENSE

Antenna

Switch

Control

Q571/572

Power

Control

Detector

D561

Integrator

R308/

C307

PWM TX

Power Set

from PLA

PA_ON from

PLA

Thermal

Shut Back

R557

TX_PWR

Switch

D683/

D684

Switch

D681/

D682

Buffer

Amp

Q670

TX Mixer

806 - 825 MHz

851 - 870 MHz

TX_LO2

RX_LO

Figure 3-2 Transmitter Block Diagram

SRM9000X8 800MHz SERVICE MANUAL

3.3 FREQUENCY SYNTHESISER

3.3.1 General

Refer to Figure 3-3.

The frequency synthesiser consists of the RX VCO, the second local oscillator VCO (90MHz), loop filters, varactor

positive bias generator, reference oscillator, external divider and an integrated fractional N phase locked loop IC

(U721).

3.3.2 PLL

The PLL is a high performance delta-sigma fractional-N device with an auxiliary integer-N PLL (U721).

The PLL contains two prescalers, programmable dividers and phase comparators, to provide a main and an

auxiliary PLL. The main PLL of U721 controls the frequency of the RX VCO via CPRF at pin 1 and VCO feedback

to FINRF at pin 4. The auxiliary PLL is used to control the receiver 90MHz second LO VCO via CPIF at pin 16 and

VCO feedback to FINIF at pin 13. The PLL operation involves the external frequency divider (U760) dividing the

15.36MHz reference oscillator by 32 to produce a PLL input reference of 480kHz; this reference is used directly by

the RF PLL phase detector. The RX VCO frequency is sampled and divided down and compared to the reference

frequency. Any error produces an offset to the control voltage output that is used to correct the VCO frequency. A

valid lock detect output is derived from LD pin 12 and is sampled by the PLA. During transmit, if an unlocked signal

is detected, the radio will switch back to receive mode. An unlocked signal in receive mode will cause the radio to

beep.

For the IF PLL, the input reference is divided by 4 to produce a 120kHz phase comparator reference, which is a

sub-multiple of the 90MHz second LO VCO.

3.3.3 VCOs

The main RX VCO uses a low noise bipolar transistor (Q623) and associated parts to generate signal frequencies

from 896MHz to 960MHz. Electronic tuning is provided by varactor diode (D610) with its control voltage derived

from the Loop Filter, PLL and +16 volt Bias Generator. VCO buffer (Q631 and Q632) isolates the VCO from any

load variations from its following circuits. The active power supply filter (Q622) minimises any supply related noise.

A PLL feedback signal is returned from the VCO buffer output via amplifier Q640.

The 90MHz receiver second LO VCO comprises Q730 and associated parts. Automatic tuning is achieved by

applying a control voltage to D730 and D731, via Loop Filter R718, R719, R720, C732, C733 and C734.

3.3.4 Positive Bias Generator and Loop Filter

A positive bias voltage for varactor D610, has been used to achieve the required broadband tuning range of the

VCO. PLL device, U721, is programmed to deliver a nominal +1.65V output from phase detector/charge pump

CPRF, for any channel frequency selected. The CPRF voltage is filtered by the Loop Filter comprising C605,

C607, C607a, C609a, R609 and R612; the loop filter removes any synthesiser noise or reference products. The

resulting low noise control voltage is applied to the anode side of VCO varactor. The cathode voltage of D610 is

controlled by the output of voltage level translator Q780, Q781, Q782 and Q783. The level translator supply

voltage is +16V, which is provided by U904E/F. The level translator output voltage is accurately controlled by the

PLA/DSP from values stored during VCO alignment. This voltage is varied versus frequency to maintain a typical

CPRF value of +1.65V.

3.3.5 Phase Modulator

The modulation path for audio, data and higher frequency CTCSS signals is via varactor D610 and associated

components. The reference input to the PLL (REFIN) provides the low frequency modulation path via a phase

modulator.

The phase modulator comprises the following sections:

- Integrator U761A is a low pass filter providing 6dB per octave attenuation to frequencies above approximately

10Hz.

- Divider U760 divides the 15.36MHz reference frequency down to 480kHz.

- Ramp generator Q771 and Q772 provides a sawtooth output, the slope of which is adjustable

via the MOD_BAL line. This adjustment is set via a DAC output controlled from the Alignment Tool.

Adjustment of the ramp slope effectively changes the Phase Modulator gain by modification of the

Schmitt Trigger switching points after modulation from the Integrator is combined to the sawtooth ramp.

SRM9000X8 800MHz SERVICE MANUAL

The divided reference signal is differentiated and discharges C778 via Q771, after which Q771 is turned off

allowing C778 to recharge via constant current source Q772.

The Schmitt Trigger comprising Q774, Q775 and Q776, converts the modulation combined with the sawtooth

ramp, to a square wave output, the duty cycle of which is controlled by the ramp slope and modulation.

The Modulation Balance adjustment is carried out using a CODEC-generated 100Hz square wave applied to

the TX_MOD input and set to give an optimum demodulated square wave output.

3.3.6 Reference Oscillators

Two TCXOs are used as optional reference frequencies for carrier frequency generation and also to provide the

DSP clock. U711 is the principal TCXO and operates at 15.36MHz and U712 is the alternate TCXO and operates at

approximately 15.359767MHz. The alternate TCXO (U712) is frequency shifted to avoid specific receiver

interference products. U711 and U712 are selected by the REF_SHIFT line, which controls the complementary

switch (Q711 and Q712). The outputs of U711 and U712 are connected to the PLL reference divider (U760) and to

the input of U701, a high frequency PLL, the output of which provides the DSP clock signal.

The carrier frequency adjustments for U711 and U712 are achieved by setting the ADJ voltage by using 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. The TCXOs are specified at ±1.5ppm frequency stability over the temperature range -30° to

+75°C.

SRM9000X8 800MHz SERVICE MANUAL

90MHz

VCO

Q730

Synthesiser

U721 RX VCO

Q623

TX/RX

Switch

D641/

D642

VCO

Buffer

Q631/

Q632

Data From

DSP

Phase

Modulator

Q774-

Q776

Ramp

Generator

Q771-

Q773

Integrator

U761A

TX_MOD 2

MOD_BAL Prog.

Divider

U710

Buffer

Q751

TCXO

U711

To TX Mixer

REF

PLL Loop

Filter

VCO Bias

Supply

Q780-

Q783

CPRF

VCAP_BIAS

FINIF

CPIF

Divide 32

Synth

Buffer

Q640

SYNTH

RX_LO1

TX_MOD 2

RX LO To

IQ Demodulator

U400

LO2

Reference

Select

To RX Mixer

5V_RX

5V_RFF

90MHz

Buffer

Q734

To TX Mixer

U650

Mod Amp

U761B

TX_MOD 1

TCXO

U712

Switch

REF_SHIFT

AFC_SW From PLA

PLL

U701

DSP_CLK

From PLA

AFC

Figure 3-3 Synthesiser, Block Diagram

SRM9000X8 800MHz SERVICE MANUAL

3.4 CONTROL

Refer to Figure 3-4.

3.4.1 DSP and PLA

The SRM9000 transceiver operates under the control of a DSP (U201) and PLA (U300) combination that, together

with a number of other dedicated devices, perform all the operational and processing functions required by the

radio. The PLA is configured by the DSP under software control to provide the following functions:

• Channel set-up of all operating frequencies

• Modulation processing and filtering

• De-modulation processing and filtering

• Tx power output reference

• Modulation Balance adjustment

• Receiver front-end tuning

• Serial communications with alignment tool, microphone and control head

• Modem functionality for data modulation

• All signalling / CTCSS generation and decoding

• Receiver muting control

• TCXO/ Alternate TCXO select

• RSSI / AGC control

• AFC

• Tx / Rx switching and PTT control

• PLL lock detect

• Audio switching

• Power On/Off control

• Interface functionality with Option Boards and External Devices

• Battery voltage and Tx current monitor

3.4.2 PLA PWM

The PLA must supply several analog signals to control radio tuning. It does this with several Pulse Width

Modulated (PWM) outputs.

The front-end tune signals (TUNE1 and TUNE2) originate from the PLA in the form of PWM signals. The values

for these signals are stored in flash memory from radio alignment and are selected depending on the channel that

the radio is currently tuned to. The PWM signals are integrated by RC networks to provide the analog tuning

voltages for the varicap tuning diodes.

Other analog PWM derived signals used are transmitter power (TX_PWR), PLL varicap bias (VCAP_ADJ),

receiver IF gain (IF_GAIN), Automatic Frequency Control (AFC), AFC Switched (AFC_SW), VCO automatic level

control (VCO_ALC) and modulation balance (MOD_BAL).

Analog inputs are monitored by four comparators comprising U301A-D and a ramp generator, the ramp being

derived from a PWM signal from the PLA.

SRM9000X8 800MHz SERVICE MANUAL

Analog voltages to be monitored such as PLL Loop Voltage (LOOP_VOLTS), battery voltage (BAT_SENSE),

transmitter current (CURRENT_SENSE) and external sense (EXT_SENSE) are connected to the inverting inputs.

The analog voltages are compared with the ramp voltage as they increase, and the comparator switches at the

point where the input voltage exceeds the ramp. The PLA compares the time at which this occurs with the PWM

signal and converts it to a binary value.

3.5 MEMORY

Memory consists of the internal DSP memory and an external 8MB non-volatile Flash Memory (U202). When

power is off, all program SW and data are retained in Flash Memory. At power-on, a boot program downloads the

DSP and PLA SW from Flash Memory to their internal RAMs for faster program execution and access to data. PLA

SW is loaded by the factory into the Flash Memory and can be updated via the Alignment Tool. DSP SW

comprises Start-up code that is also loaded by the factory. High-level software comprising Operational Code and

Customer Configuration are loaded at distribution centres and are loaded via the FPP Programmer.

SRM9000X8 800MHz SERVICE MANUAL

DSP

U201

Synthesiser

U721

PLA

U300

Reset

U200

Flash

Memory

U202

CODEC

U800

Serial port

TX_DATA

RX_DATA

IF_GAIN

TX_Power

1. SPKR_ON

2. PA_ON

3. TX_MODE

4. OPTION ON/OFF

5. PWR_OFF

6. ANALOG GATE CONTROLS

7. SYNTH_FAST

Tune 2

BAT_SENSE

Audio

AFC

AFC_SW

LOOP_VOLTS

EXT_SENSE

1. PTT_IN1

2. PTT_IN2

3. GAIN

4. DC PWR_STATUS

5. PWR_SENSE

Bit

Outputs

CURRENT_SENSE

BAT_SENSE

POWER_SENSE

MOD BAL

Bit

Inputs

LOCK

PWM

Outputs

Sampled Analog Inputs

DSP_CLK

Tune 1

VCAP_ADJ

ALC_SET

Figure 3-4 Controller Block Diagram

SRM9000X8 800MHz SERVICE MANUAL

3.6 POWER SUPPLIES

3.6.1 Power On Function

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 three low

dropout series regulators and switched battery voltage. These regulated supplies power auxiliary supplies as well

as the negative and positive voltage generators. The radio ON/OFF function is achieved through Q902, Q908 and

Q909. A low voltage pulse from the control unit or microphone handset PWR ON or PWR OFF momentarily turns

on Q900/Q908 for approximately 1 sec. In this time, the radio DSP samples the PWR_SENSE line and determines

the state of the on-off switch. If the on-off switch is on, the DSP raises the PWR_OFF line and latches the main

FET (Q900) on, which then maintains power to the radio circuitry.

The Power-off operation requires the On-Off switch to be turned off for more than 2 seconds. If the On-Off switch

is sensed going low by the DSP via the PWR_SENSE line, the DSP will save radio settings and then lower the

PWR_OFF line, thereby turning Q900 off.

3.6.2 Power Supplies

The following is a list of the SRM9000 power supplies and some of the devices and circuits they supply.

3.6.2.1 8V Regulator U900

Regulated 8.0V supply (8V RF)

• Tx buffers Q521, Q531a

• VCOs and VCO buffers via active filter Q622

Regulated 8.0V switched supply (5V RX)

• Rx front end

• IF Amplifier

• Various switching functions

3.6.2.2 5V Regulator U901

Regulated 5.0V supply (5V A, 5V D, 5V RF and 5V RFF)

• Synthesizer buffer Q640

• VCO varactor positive supply Q780 to Q783

• TCXOs U711 and U712

• TCXO divider U760

• Rx audio amplifiers U802/U803

• Rx mute switch Q810 to Q813

Regulated 5.0V switched supply (5V TX and Tx PSU+)

• Tx power control U551

• Tx buffers Q501 to Q531a

• Various switching functions

3.6.2.3 3.3V Regulator U912

Regulated 3.3V supply (3V3)

• Reset U200

SRM9000X8 800MHz SERVICE MANUAL

• PLA U300

• DSP U201

• Flash U202

• Digital supply for CODEC U800

Regulated 3.3V supply (3C3)

• Analog supply for CODEC U800

Regulated 3.3V supply (3Q3)

• I/Q demodulator U481

Regulated 3.3V supply (3P3)

• Digital supply for PLL U701

Unregulated 13.8V (13V8_UNSW)

• Tx PA module U500

• Antenna changeover switch Q571/572/573

3.6.2.4 2.5V Regulator U903

Regulated 2.5V supply (2V5)

• DSP core U201

• PLA core U300

3.6.2.5 Negative and Positive High Voltage Power Supply U904E/F

• +16V output (+16V) for VCO Varicap tuning drivers

• -12V Output (-12V) for Front end Varicap tuning drivers

3.6.2.6 Unswitched Battery (13V8_UNSW_F)

• Rx audio power amplifier U805

• Rx mute switch Q811

SRM9000X8 800MHz SERVICE MANUAL

4. ALIGNMENT (LEVEL 3 SERVICE ONLY)

4.1 GENERAL

If the radio contains customer configuration data that must be retained, you must first use the SRM/SRP

Personality Programmer (FPP) software to read all radio configuration files and save them on to alternative media

before commencing the alignment procedure.

When the Alignment is completed, use the FPP software to retrieve the stored data and write it back to the radio.

It is preferred that the radio remain installed in its aluminium extruded case throughout this alignment procedure. If

the radio is to be aligned when removed from the case, a temporary heat sink must be fitted under the Transmitter

PA module and the receiver output must be kept below 100mW.

Note. Final Tx power adjustments must be performed with the radio board installed in the chassis.

Each transceiver will need to be individually tested and to have the resultant calibration data stored within it. This

data cannot be modified by the user or by the normal customisation (eg. channel frequency, selcall ID etc.)

process. It is set during the manufacturing process and may be modified for maintenance purposes by use of the

Alignment Tool.

For customer channels between each pair of test frequencies, an interpolation is automatically carried out to

determine the correct DAC values at the relevant frequency for the above calibration parameters.

For all of the following alignment procedures it is assumed that the radio is connected to a Comms. Analyser or

equivalent collection of test equipment. The alignment is performed at room temperature, with a 50Ω termination

on the antenna connector and with a power supply set to give 13.2V at the radio connector.

Warning

The RF power output from the transmitter during these tests can cause burns and can be dangerous to

some discrete items of test equipment, hence power attenuators may be needed. Also the heat generated

inside the radio after a long period of transmission can be hazardous.

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).

Using the Alignment Tool will allow changes to the original factory alignment and will invalidate

all warranties and guarantees unless performed by an authorised level 3 service centre.

SRM9000X8 800MHz SERVICE MANUAL

Calibration sequence

On a set that has not previously been calibrated or in which the calibration has been corrupted, preset parameters

should be initially loaded into the radio for optimum alignment, after which the calibration steps must be carried out

in the following order. These preset parameters may be obtained by reading a previously aligned radio or by

loading predetermined default values.

A number of aspects of the radio need to have calibration data determined and stored during manufacture and

subsequently used by the S/W during normal operation. These must be aligned in the following order:

• Tx and Rx VCO

• TCXO’s

• Tx power

• VCO ALC

• Tx modulation (deviation and then mod balance)

• Rx and Tx filter tuning

• Rx mute

• RSSI

• Tx Current Limit

4.1.1 Test Equipment

1 Radio transceiver test set CMS-50 Comms. Analyser or similar.

Note. For alternative equipment, the Mod

Balance test requires internal DC coupling

between the demodulated signal and

demodulation output connector.

2 Variable DC power supply 10.8V to 16.3V current limited to 7.5 amps.

3 Oscilloscope 20 MHz bandwidth minimum

4 SRM9000 Programming & Alignment Lead P/N MAR-PROGLEAD

5 SRM9000 Radio Test Interface Unit P/N TBD

6 Personal Computer 486 DX 66 or better.

Operating system Windows 95 or later.

Minimum RAM - 16MB.

5MB free hard disk space.

Floppy drive - 1.44MB.

Mouse and serial port required

7 SRM/SRP Alignment Tool Computer Software file

8 SRM/SRP Field Personality Programmer (FPP) Computer Software file

9 SRM9000 Battery Cable

10 RF coax double shielded – N Type male to TNC male.

4.1.2 Alignment Frequencies

Channel 0 1 2 3

Low_RP

High_RP Low_TA High_TA

Rx 851.075 869.975 N/A N/A

Tx 806.025 824.925 851.025 869.925

SRM9000X8 800MHz SERVICE MANUAL

4.1.3 Preset Parameters

The table below defines the preset alignment settings for the radio DAC’s. These will be programmed into the radio

prior to performing an initial alignment. The Fixed values are not altered by the alignment adjustments whereas the

Adjustable values are used as starting points for alignment where the radio has not been calibrated previously, or

where the calibration has been corrupted.

Variable Name DAC Value

Alignment Adjustable Alignment Fixed

Synth_DAC_TX_Low_RP 193

Synth_DAC_TX_High RP 158

Synth_DAC_TX_Low_TA 106

Synth_DAC_TX_High_TA 66

Synth_DAC_RX_Low 193 (note 1)

Synth_DAC_RX_High 158 (note 1)

Front_End_Tune1_Low 110

Front_End_Tune2_Low 110

Front_End_Tune1_High 185

Front_End_Tune2_High 185

Tx_Filter_Low_RP 60

Tx_Filter_High_RP 90

Tx_Filter_Low_TA 130

Tx_Filter_High_TA 170

Tx_Low_Power_Low_RP 55

Tx_Mid_Power_Low_RP 95

Tx_High_Power_Low_RP 210

Tx_Low_Power_High_RP 55

Tx_Mid_Power_High_RP 95

Tx_High_Power_High_RP 210

Tx_Low_Power_Low_TA 55

Tx_Mid_Power_Low_TA 95

Tx_High_Power_Low_TA 210

Tx_Low_Power_High_TA 55

Tx_Mid_Power_High_TA 95

Tx_High_Power_High_TA 210

SRM9000X8 800MHz SERVICE MANUAL

Variable Name DAC Value

Alignment Adjustable Alignment Fixed

VCO_Mod_Limit_Low_RP 14000

VCO_Mod_Limit_High_RP 16500

VCO_Mod_Limit_Low_TA 18300

VCO_Mod_Limit_High_TA 19000

Modulation_Bal_Low_RP 40

Modulation_Bal_High_RP 80

Modulation_Bal_Low_TA 105

Modulation_Bal_High_TA 125

VCO_ALC_Low_RP 75

VCO_ALC_High_RP 80

VCO_ALC_Low_TA 95

VCO_ALC_High_TA 100

Sq_Upper_Threshold 2600

Sq_Lower_Threshold 1000

TCXO 14800

Alternate TCXO 6000

CGF_Current 15

CPG_Current 5

CPT_Timer 6.666

PA_On_Timer 8

CPT2_Timer 255

CPG2_Current 0

Tx_Current_Limit 44 (typ)

Power_Ramp_High_Power_Up_0 0

Power_Ramp_High_Power_Up_1 67

Power_Ramp_High_Power_Up_2 67

Power_Ramp_High_Power_Up_3 215

Power_Ramp_High_Power_Up_4 215

Power_Ramp_High_Power_Up_5 215

Power_Ramp_High_Power_Up_6 215

Power_Ramp_High_Power_Up_7 215

SRM9000X8 800MHz SERVICE MANUAL

Variable Name DAC Value

Alignment Adjustable Alignment Fixed

Power_Ramp_High_Power_Up_8 215

Power_Ramp_High_Power_Up_9 215

Power_Ramp_High_Power_Down_0 215

Power_Ramp_High_Power_Down_1 158

Power_Ramp_High_Power_Down_2 96

Power_Ramp_High_Power_Down_3 46(abs)

Power_Ramp_High_Power_Down_4 0

Power_Ramp_High_Power_Down_5 0

Power_Ramp_High_Power_Down_6 0

Power_Ramp_High_Power_Down_7 0

Power_Ramp_High_Power_Down_8 0

Power_Ramp_High_Power_Down_9 0

Power_Ramp_Low_Power_Up_0 10(abs)

Power_Ramp_Low_Power_Up_1 56

Power_Ramp_Low_Power_Up_2 56

Power_Ramp_Low_Power_Up_3 56

Power_Ramp_Low_Power_Up_4 56

Power_Ramp_Low_Power_Up_5 56

Power_Ramp_Low_Power_Up_6 56

Power_Ramp_Low_Power_Up_7 56

Power_Ramp_Low_Power_Up_8 56

Power_Ramp_Low_Power_Up_9 56

Power_Ramp_Low_Power_Down_0 56

Power_Ramp_Low_Power_Down_1 26(abs)

Power_Ramp_Low_Power_Down_2 0

Power_Ramp_Low_Power_Down_3 0

Power_Ramp_Low_Power_Down_4 0

Power_Ramp_Low_Power_Down_5 0

Power_Ramp_Low_Power_Down_6 0

Power_Ramp_Low_Power_Down_7 0

Power_Ramp_Low_Power_Down_8 0

Power_Ramp_Low_Power_Down_9 0

Note 1. These values are automatically set and should equal Synth_DAC_TX_Low_RP and

Synth_DAC_TX_High_RP values respectively.

SRM9000X8 800MHz SERVICE MANUAL

4.1.4 Alignment Limits

TEST NAME HIGH LIMIT LOW LIMIT UNIT

TCXO Alignment +50 -50 Hz

TX POWER 1.0W 1.06 0.94 W

TX POWER 5W 5.20 4.80 W

TX POWER 27.5W 28.0 27.0 W

VCO MOD LIMIT (Max peak) 2300 2250 Hz

MOD BALANCE +5% -5% Flatness

RX FILTER 1,2 Auto aligned Auto aligned

TX FILTER 1,2,3,4 Preset Preset

RSSI CAL @ -90dBm 2000 500

SQUELCH OPEN 11.5 8.5 dBS

SQUELCH CLOSED 7.0 3.0 dBS

4.1.5 Band specific frequency limits

TEST NAME HIGH LIMIT LOW LIMIT UNIT

VCO - Rx 915.000 896.000 MHz

VCO - Tx 960.000 896.000 MHz

4.1.6 SRM9000 Radio Test Interface Unit

Black

Red

Yellow

Blue

Brown

Orange

Green(4)

White (8)

(Not Used)

+470E White

Green

Mic Audio in

Mic Ground

Ground

Handset AF Output

13.8V Switched

On/Off

Rx Data

Tx Data

RJ45

PRM80

Programming Cable

P/N 9525-001-00016

BNC (F)

Connector

22uF to 47uF

Tant. or Elect

DB25

Access and modify

cable as shown

9000_49/2

25-9 Way

Adaptor

PC To

SRM9000

F Generator

SRM9000X8 800MHz SERVICE MANUAL

SRM9000 P2

Pins 6 & 13

R = Audio power Load (set as appropriate)

Resistor 4R 4W for ½ Bridge Speaker option

Resistor 8R 12W for full Bridge Speaker option

600R 1:1

Line Matching

Transformer

Noise & Distortion Meter

Oscilloscope

9000_49/3b

4.1.7 Test Setup

1. Connect the radio to the test equipment as shown above.

2. Switch on the DC Power Supply.

SRM9000

(DB15M)

SRM9000

Programming

and

Alignment

Breakout

Box

Antenna Skt

RJ45

Generator

13.8V DC

Power Supply

CRO

9000_49

Radio

Transceiver

Test

Set

Noise &

Distortion

Meter

SRM9000

Speaker O/P

Breakout

Box

Coax

(<200 mm)

SRM9000X8 800MHz SERVICE MANUAL

4.1.8 COMMS Setup

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.

2 Go to the Options menu and choose Comms Setup.

3 The Comms Setup dialogue box is displayed.

Select the Comms Port setting appropriate to the

configuration of your PC and choose 9OK.

(Usually COM1)

SRM9000X8 800MHz SERVICE MANUAL

4.1.9 Band Preparation

1 Go to the Options menu and choose Band. Select

appropriate band and choose 9OK.

4.1.10 Hardware Options Select

1 Options menu choose Hardware Mods.

Press Read Radio.

Tick 9 the box according to the revision as desired as in

the table below.

Press Write Radio.

(Press Read Radio again make sure the selected options

are still ticked ).

4.1.11 Radio Preparation

Radio parameters are to be aligned sequentially as detailed in this procedure.

1 At the Opening Menu, select the Align Menu

and choose Prepare/Read Radio.

SRM9000X8 800MHz SERVICE MANUAL

2 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.

Choose Yes if you want to proceed and go to

step 3.

3 The radio alignment data is read (indicated

by percentage bar) and stored.

The test alignment data is downloaded into

the radio.

Note: In test alignment mode the radio is configured only for 12.5 kHz channel spacing. Therefore all alignment

is carried out at 12.5 kHz levels. When the radio is configured with the FPP for other channel spacings,

the deviation related levels are calculated on a per channel basis by the radio software.

4.1.12 ALIGNMENT PROCEDURE

Radio alignment must be done in the sequence detailed in the following paragraphs. This alignment assumes that

the radio is functioning normally.

4.1.13 VCO DAC Alignment

The frequencies generated by the Tx and Rx VCO’s are determined by the synthesiser loop output for fine control

and by a DAC setting for coarse control. The DAC needs calibrating at each of four test frequencies. No calibration

is necessary for the receiver 2nd LO.

During this procedure, the alignment program puts the radio into a special mode in which it ignores the ‘out of

lock’ signal from the synthesiser.

SRM9000X8 800MHz SERVICE MANUAL

Calibration procedure

1 Select the VCO DAC page.

2 Select PTT with no modulation.

3 Select Auto Align. The Synth DAC Tx slider will automatically adjust its value for each transmitter

alignment frequency to set the VCO loop filter value between 87 and 93.

4 The Synth DAC Rx slider must be set to the same Tx value for Channels 0 and 1 only.

This is automatically set when Auto Align is selected.

SRM9000X8 800MHz SERVICE MANUAL

4.1.14 TCXO DAC Alignment

General

The optimum radio case temperature for TCXO alignment is around 25°C although a temperature between 20°C

and 30°C is permissible. If the radio has been allowed to exceed this range during previous transmit

cycles, it should be allowed to cool until it is within the permissible range.

Calibration procedure

1 Select the Mute/TCXO page.

2 Select PTT.

3 Adjust the TCXO slider to ensure that the transmit frequency error is within 50Hz of 824.925000MHz.

4 Select “Set Alternate TCXO”.

5 Adjust the TCXO slider to ensure that the transmit frequency error is within 50Hz of 824.912500MHz.

6 Deselect “Set Alternate TCXO”.

7 Deselect PTT.

SRM9000X8 800MHz SERVICE MANUAL

4.1.15 Rx Front End DAC Alignment

Calibration procedure

1 Ensure that the TCX0 Alignment has been done before proceeding with this section.

2 Select the Rx/Tx Filter page.

3 Select Open Mute.

4 Set the Volume slider to 15.

Speaker audio should now be visible on the Scope. If required readjust the Volume slider to a suitable

level.

5 Select Channel 0

6 Set the Signal Generator to the Channel 0 carrier frequency, with a 1000Hz modulation signal, a

deviation of ±3 kHz and a RF level of -90dBm.

The RSSI bar-chart display should now be (typically) well above a reading of 20.

7 Select Auto Align.

The front end will be tuned automatically and finish with an RSSI reading of typically around 150..

8 Change deviation to 1.5kHz.

9 Verify that the receiver sensitivity is better than -117.5dBm for 12dB SINAD. (Sensitivity is typically -

120dBm).

10 Repeat Steps 7 to 9 for Channel 1.

SRM9000X8 800MHz SERVICE MANUAL

4.1.16 Tx Filter DAC Alignment

General

This filter should be set so that the Tx spurious emission at 180MHz above the carrier frequency is adequately

notched.

Calibration procedure

Note. This step is only required if Tx Filter DAC values have been corrupted.

1 Select the Rx/Tx Filter Page

2 Select Channel 0

3 Set DAC to preset value as per Section 2.13.

4 Repeat for the next three channels 1, 2 and 3.

SRM9000X8 800MHz SERVICE MANUAL

4.1.17 RSSI Calibration

Calibration procedure

1 Select the RSSI Cal page.

2 Set the Signal Generator for a RF output level of -90dBm and 3kHz deviation at the specified

frequency.

3 Activate the Store RSSI button.

The receiver RSSI threshold setting is calibrated.

SRM9000X8 800MHz SERVICE MANUAL

4.1.18 Mute DAC Adjustment

Note. This adjustment has default setting of 1000/2600 and should not need changing except for specific

requirements.

Calibration procedure

1 Select the Mute/TCXO page and select Open Mute.

2 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.

3 Select Close Mute and remove the RF input from the radio.

4 Set the Squelch Open and Squelch Close sliders to the fully left position. This ensures the receiver

will be muted.

5 Set the Squelch Close slider to the fully right position.

6 Reconnect the RF input to the radio.

7 Adjust the Squelch Open slider to the right until the mute opens.

8 Reduce the Signal Generator output level by approximately 2dB (or by an amount equal to the

desired mute hysteresis level).

9 Adjust the Squelch Close slider to the left until the mute closes.

10 The mute should now open and close at the desired RF levels.

SRM9000X8 800MHz SERVICE MANUAL

4.1.19 Tx Power DAC Alignment

General

The transmitter output power can be programmed to three power ranges: 1W, 5W and 27.5W by the

appropriate setting.

Note 1: Care should be taken not to set the output power and hence supply current to excessive levels, ie.

above 30W or 7.5A, since the higher heat dissipation involved may effect component reliability.

Note 2: Also, the antenna connector should be terminated directly into the Comms. Analyser for this test to

minimise VSWR effects that could affect settings.

Note 2: Repeat the following steps as quickly as possible to avoid excessive heating the radio, which may

affect calibration.

Note 3: The Tx Current Limit setting provides a maximum current limit into the RF PA module to protect it in

the event of high dissipation as a result of inadequate drive power being applied relative to the Power DAC

setting or high VSWR’s

Calibration procedure

1 Select Tx Power/Mod page.

2 Select Channel 0.

3 Select the 1W power level.

4 Press the PTT button.

5 Adjust the Tx Final Value slider for a power output of 1W.

6 Repeat step 5 for the remaining 3 Channels (1, 2, & 3).

SRM9000X8 800MHz SERVICE MANUAL

7 Select the 5W power level.

8 Adjust the Tx Final Value slider for a power output of 5W.

9 Repeat step 8 for the remaining 3 Channels (2, 1& 0).

10 Select the 27.5W power level.

11 Adjust the Tx Final Value slider for a power output of 27.5W.

Note that the supply current is less than 7.5A.

12 Repeat step 11 for the remaining 3 Channels (1, 2, & 3).

13 Press Calibrate TX PA Current button and follow the prompt to automatically set the maximum

current limit.

14 The PTT will automatically dekey after this procedure.

4.1.18 Tx Modulation DAC Alignment

All microphone levels are referenced to the audio level output displayed on the Comms. Analyser and based on <10Ω

source impedance.

NOTE: This audio signal is fed to the radio input via a series 470Ω resistor and 47uF capacitor in the Audio/ Serial

Interface Adaptor.

General

Dual point modulation is used and there are two settings that need adjusting to meet deviation requirements. The

modulation alignment is set up for 12.5kHz channel spacing. For customer configurations of other channel

spacings, the modulation alignment is automatically adjusted for those settings.

Note that when measuring deviation at 60% MSD the average of the + and − readings should be used. When

measuring maximum deviation, the higher of the + and – readings should be used.

SRM9000X8 800MHz SERVICE MANUAL

Calibration procedure

1 Select Tx Power/Mod page.

2 Select Channel 0.

3 Select the 1W power level.

4 Set the microphone input signal from the Audio Generator to 1000Hz at 400 mV RMS.

5 Select PTT and adjust the VCO Modulation Limit DAC to give a maximum peak deviation of 2.30kHz.

6 Reduce the microphone input level to 40mV RMS and check that the deviation is within the range ±1.25

kHz to ±1.75 kHz.

7 Repeat steps 5 to 6 inclusive for the remaining three Channels (1, 2, & 3).

8 Remove the microphone audio input signal

9 Select the Generate Square Wave function.

10 While viewing the de-modulated signal on the transceiver test set oscilloscope, set to DC coupling,

adjust the Modulation Balance slider for the best square wave symmetry.

Refer to Note below

11 Repeat steps 9 to 10 inclusive for the remaining three Channels (2, 1 & 0).

12 Release the PTT button.

Note: The FM demodulator on the measuring equipment also requires DC coupling for this test to provide

correct results. If an HP8920A is used, the top and bottom of the square wave must be set with a 16.6%

negative slope.

ie. For a waveform of 4 divisions p-p (neglecting overshoot) the slope should be adjusted to 0.3 divisions.

SRM9000X8 800MHz SERVICE MANUAL

4.1.20 PROGRAMMING ALIGNMENT DATA

When all channels have been aligned the radio is programmed with the new alignment data:

1 Select Align and choose Write Alignment.

2 A warning message is displayed.

3 Choose Yes.

New alignment data is written to the radio.

4.1.21 CUSTOMER RADIO PERSONALITY DATA

If the Customer Radio Personality Data was saved as a separate file, use the FPP Programmer to write this data to

the radio.

SRM9000X8 800MHz SERVICE MANUAL

5. REPLACEABLE PARTS

Figure 5-1 Replaceable Parts

5.1 REPLACEABLE PARTS

Ident Description Quantity per

Assembly Part Number

1 Radio Board Assembly X8 Band 1 6102 359 6232

2 Extrusion Main Body Macom 1 6102 310 01452

3 End Cap, Rear, P25 Option 1 6102 310 00532

4 Screw End Cap 12 3513 993 85009

5 Screw Tray Retention M3 x 16 Zinc 3 3513 993 57117

6 Screw Tray Retention M3 x 12 Black 2 6102 700 00081

7 Label Transceiver Top Macom 1 6102 303 00242

8 End Cap, Front 1 3513 903 91072

9 Label End Cap, Front Macom 1 6102 303 00251

10 Inner Tray 1 3513 901 70083

11 Washer Fibre 20 3513 907 30241

12 Washer Seal Antenna Connector 1 3513 907 3255A

SRM9000X8 800MHz SERVICE MANUAL

Ident Description Quantity per

Assembly Part Number

13 Gasket D Connector 1 3513 902 1082A

14 Gasket Antenna Connector 1 3513 902 10651

15 MAB-2 Option Board- Programmed 1 6102 359 6213

16 Screw Option Board M3 x 6 3 6102 700 00071

17 Dust Cap P25 Option Connector 1 6102 310 01222

18 Gasket P25 1 6102 310 00812

19 Tx PA Shield cover 1 6102 310 01201

DC Power Cable Macom 1 6102 350 13591

RJ45 Connector, S1 1 6102 621 00121

DB15 Connector, P2 1 3513 993 02063

Antenna TNC connector, S501 1 6102 310 01431

Audio PA Module U805 1 3513 999 52036

Voltage Regulator U900, U901, U912 1 6102 822 00121

Voltage Regulator U903 1 6102 822 00161

Temperature Controlled Crystal Oscillator, U711 & U712 1 6102 922 00011

Transient Suppressor Diode, D900 1 6102 012 00031

Transmit Receive Switch, Q541 1 3513 999 00006

ON/OFF FET Q7, Q900 1 6102 062 00051

Tx PA Module RA45H8087M-101, U561 1 6102 861 00153

6. SCHEMATICS

6.1 SRM9000 800MHZ RADIO BOARD SCHEMATICS:

Sheet

No. Description

1 Transceiver Block Diagram

2 DSP/Flash

3 PLA

4 Receiver

5 Transmitter

6 VCO

7 Synthesizer

8 Tx/Rx Audio

9 Power Supply

10 I/O Connections

Top Overlay of PCB

Bottom Overlay of PCB

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 1: Transceiver Block Diagram

ORDER DRAWN REMARKS EXAM APPD DATE REV

6102 349 6232

ll Rights Reserved

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

SAW

FILTER

851MHz ~

870MHz

(40dB)

VCO BUFFER

SAW

FILTER 806

~ 825MHz

(40dB)

CRYSTAL

FILTER

45MHz

T/A: 941MHz ~ 960MHz

REPEATER: 896 ~ 915MHz

T/A: 851MHz ~ 870MHz

REPEATER: 806 ~ 825MHz

LNA

SAW

FILTER

851MHz ~

870MHz

TUNED FILTER

851MHz ~ 870MHz

30W PA

HARMONIC

FILTER

870MHz

DRIVER

BUFFER

BP FILTER

896MHz ~

915MHz

BP FILTER

90MHz

I/Q DEMODULATOR

AMP 10dB

-9dBm

1dBm

0dBm

DUAL PLL

LMX2485E

Frif=120kH

Frrf=480kH

LOOP VOLTS

FIN_RF

FIN_IF

PRI

CPP_IF

15.360MHz

PRIMARY TCXOMHz

FIRST MIXER

5V_TX

RX/TX

TUNE_1N

6dBm

FB BUFFER

100mV

200mV

IF AMP

PA_ON

44dBm

45dBm

16dBm

-11dBm 10dBm

0dBm

-9dBm

TA_/REP

6102_349_6232X8052.Sch

6102_349_6232X8042.Sch

6102_349_6232X8062.Sch

6102_349_6232X8072.Sch

5dBm

6102_349_6232X8082.Sch

CODEC

TX_MOD

AUDIO

POWER

AMPLIFIE

I_CH

Q_CH

MIC_AUDIO

AUXILARY

AUDIO

AMPLIFIE

DISC_AUDIO

H'SET_AUDIO

SPKR_AUDIO

6102_349_6232X8032.Sch

PLA

DSP

FLASH

REF_SHIFT

DSP_CLOCK

806MHz~870MHz

(40dB notch)

BUFFER

-6dBm

-5dBm-2dBm

PLL_DATA

6102_349_6232X8022.Sch

6102_349_6232X8092.Sch

POWER

SUPPLIES

6102_349_6232X80102.Sch

EXTERNAL

INTERFACE

AUDIO PROCESSING

RECEIVER SECTION

90MHz VCO

PRIMARY VCO

TX_MIXER

TUNED_FILTER

SWITCHED_FILTERS

ANTENNA SWITCH

6102_349_6232X80112.Sch

HARDWARE

800 MHz BLOCK DIAGRAM

1 of 12

TX_PWR

CURRENT

LIMIT

CURRENT_SENSECURRENT_CAL

PLL_CLK

PLL_STB

TUNE_1

TUNE_2

RX_GAIN

IF_GAIN

POWER

CONTROL

TA_/REP

TUNE_1

TUNE_2

TUNE_3

RX/TX

CURRENT_SENSE

PLL_DATA

PLL_CLK

PLL_STB

8V_RF 13V8_UNSW5V_TX

5V_A3D3 16V

5V_RF

5V_A

3D3

3C3

13V8_SW

3P3

5V_D3V3

5V_A

3Q3

5V_D 3D3

5V_D

3A3

13V8_SW

3C3

3P3

3Q3

5V_A

8V_RF

8V_RX

13V8_UNSW 13V8_UNSWF

5V_TX

5V_RX

2V5

-12V

16V

-12V

1V65

3D3

5V_RX

5V_TX

VCAP BIAS

SUPPLY

ADAPTIVE LOOP FILTER

150/600Hz

FAST

LOOP

FILTER

625Hz

INJECTION BUFFER

REFERENCE

BUFFER

4/5 CH A/D

CONVERTER

LOOP_VOLTS

EXT_SENSE

RF_DETECT

ANALOG OUTPUTS 14 CH D/A

CONVERTER

ANALOG INPUTS

DIGITAL OUTPUTS

IF_GAIN

ACCESS_SW

OUTPUT0

RF_GAIN

AUDIO_EN2

AUDIO_EN3

AUDIO_EN4

DATA_EN

MOD_SW

AUDIO_EN1

TX_MODE

SPKR_ON

IGN_SENSE

PWR_SENSE

PTT_IN2

PTT_IN1

LOCK

CURRENT_CAL

PA_ON

MOD_BAL

VCAP_ADJ

REF_SHIFT

TXD1

RXD1

TX_DATA

RX_DATA

SCLK1

CSC_0

MF8??

CCLK

L3C

L3M_A

CLRC

/RESET DIGITAL OUTPUTS

L3D

BUFFER -1dBm

15.359767MHz

SECONDARY TCXOMHz

16V

CPP_RF

VCAP_ADJ

VCAP_BIAS

16V

TX_PWR RX_PON

TX_PON

STBY

TX_PON

RX_PON

STBY

5V_TX

PWR_ON

IGN

PWR_OFF

IGN_SENSE

PWR_SENSE

PWR_OFF

DIGITAL INPUTS

SERIAL I/O

DATA/ADDRESS BUS

ACCESS_ON/OFF

AUDIO_OUT1

AUDIO_OUT2

AUDIO_OUT3

DISC_AUDIO

H'SET_AUDIO

SPKR_AUDIO

13V8_ACCESS_SW

TX_DATA

RX_DATA TXDATA

RXDATA

AUDIO_I/P

OUT#0

IN#0

OUTPUT0

PTT_IN1

MF1~MF24

RX_LO2

RX_LO1

RX_IN

TX_LO2

AF_GAIN

MF1~MF24

DIFF AMP

5V_RX

1V65

3P3

VOLTAGE

TRANSLATOR

TUNE_1N

TUNE_2N

PWR_STATUS

BATT_IN

ON/OFF

IGN_SW

13V8_UNSW

PWR_ON

IGN

13V8_UNSWF

EXTERNAL INPUTS

EXTERNAL OUTPUTS

EXTERNAL SERIAL DATA

OUTPUTS

SPKR_AUDIO

INPUTS

I/O

SERIAL DATA

AUDIO_O/P

LOCK

EXT_REF

AFC

TX_RF

SPKR_ON

5V_RF

.A09.10.06

..CM .. .INITIAL REALEASEU057

SRM9000 RADIO BOARD

BUFFER 5dBm

.B06.02.07

..CM .. .UPDATED TO REV BU089

AFC_SW

VCO ALC

ALC_SET

VCO_BIAS

6102_349_6232X8062.Sch 6102_349_6232X8062.Sch

D/COUPLE

R45dBm

D/COUPLE

8V_RF

.C21.06.07

..CM .. .UPDATED TO REV 1U128 .D07.12.07

..CM .. .UPDATED TO REV 2U167

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 2: DSP/ Flash

ORDER DRAWN REMARKS EXAM APPD DATE REV

6102 349 6232

2 of 12

DSP MODULE

SRM9000 RADIO BOARD

TITLE:

3V3

0VA

D19

RESET

A12

D20

A10

D16

R209

10k

R208

10k

R207

10k

C202

100n

R219

N.F.

Q200

N.F.

C206

N.F.

C203

N.F.

R217

100R

0VA0VA

R230

10k

R206

10k

R235

10k

R203

10k

D10

D11

D12

D13

D14

D15

DONE

3V3

0VA

D16

D17

D18

D19

D20

D21

IRQ8

D10

D11

D12

D13

D14

D15

GCLK

/RD

/WR

0VA

SINT

C204

100n

0VA

C205

N.F.

2V5

R212

N.F.

0VA

R218

680K

Vcc

PFI

RESET

3Gnd

PFO

RESET

U200

ADM708SARZ

C200

100n

R225

10k

R222

270R

R223

270R

R221

270R

PLL_STB

C215

33p 0VA

PLL_CLK

PLL_DATA

C216

33p 0VA

C212

N.F.

0VA

R216

N.F.

LB_RESET

3V3

0VA

C211

100n

3V3

0VA

C214

100n

3V3

0VA

C213

100n

0VA

2V5

0VA

C210

100n

3V3

0VA

C209

100n

2V5

0VA

C201

100n

0VA

PSEL

3V33V3

3V3

GDAT

STB

TX_ENABLE

RX_ENABLE

R220

4k7

R224

4k7

3V3

CLK_SHIFT

SOFS

EBR

ERES

TFS

GSEL

/RESET

ELIN

ELOUT

EINT

EMS

ECLK

RXD

TXD

EBG

RFS

SCLK0

CLKOUT

SOFS

SCLK1

/BR

/BG

R201

1k0

/RESET

DR0

DT0

NCONFIG

RY/BY#

WE#

RESET#

A18

A10

A14

A11

A15

A0 E1

DQ0 E2

DQ2 E3

DQ5 E4

DQ7 E5

16 E6

CE# F1

DQ8 F2

DQ10 F3

DQ12 F4

DQ14 F5

BYTE# F6

Vss H1

DQ1 H2

DQ3 H3

DQ4 H4

DQ6 H5

Vss H6

OE# G1

DQ9 G2

DQ11 G3

Vcc G4

DQ13 G5

DQ15/A-1 G6

U202

M29DL800BB120WBD

D18

/RD

3V3

D17

3V3

GDAT

STB

D10

D11

D12

D13

D14

D15

GSEL

/WR

/RD

DONE

SINT

NCONFIG

IRQ8

GCLK

SOFS

CLKOUT

SCLK0

ERES

EMS

EBG

EBR

ECLK

ELOUT

/BG

ELIN

EINT

D21

GCLK

LB_RESET

/RESET

3V3

0VA

BAT_SENSE

R228

1k0

R229

1k0

TX_PON

RX_PON

TX_ENABLE

RX_ENABLE

C217

100n

TP201

TP212

TP202

RESETS AT 9.0V BATTERY VOLTAGE

0VA

TP219

R231

100R

R232

100R

R233

100R

C219

33p

0VA

C220

33p

C221

33p

0VA 0VA

DT1

DR1

DT1

DR1

DT0

DR0

CDI

CDO

R205

10k

0VA

TP203

TP204

TP208

TP221

TP222

TP225

TP224

TP228

TP229

TP240

TP242

TP241

TP243

TP250

TP207

TP205

TP211

TP210

TP215

TP213

TP214

TP209

R234

100R

10 IRESET

0VA

E201

SHIELD

N.F.

/RESET

XTAL_SHIFT

RFS

TFS

GDAT

R210

10k

R227

10k

R204

N.F.

R202

N.F.

0VA

TFS

D22

3V3

D22

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

FC0

3V3 3V3

R237

100K

R236

100K PF4

PF6

FC0

PF6

PF4

SCLK1

.A09.10.06

..CM .. .INITIAL REALEASEU057

A2/IAD1 A1

A1/IAD0 A2

GND A3

A0 A4

NC A5

GND A6

NC A7

NC A8

NC A9

D22

GND

A4/IAD3 B1

A3/IAD2 B2

GND B3

NC B4

NC B5

GND B6

Vddext B7

D23 B8

D20 B9

D18 B10

D17 B11

D16 B12

PWDACK C1

A6/IAD5 C2

RD C3

A5/IAD4 C4

A7/IAD6 C5

PWD C6

Vddext C7

D21 C8

D19 C9

D15 C10

NC C11

D14 C12

D1 WR

D2 NC

D3 BGH

D4 A9/IAD8

PF1 (MODE B)

D6 PF2 (MODE C)

D7 NC

D8 D13

D9 D12

D10 NC

D11 GND

D12

Vddext

E1 Vddext

E2 A8/IAD7

E3 FLO

E4 PFO (MODE A)

E5 FL2

E6 PF3 ( MODE D)

GND

E8 GND

E9 Vddext

E10 GND

E11 D10

E12 A13/IAD12

F1 NC

F2 A12/IAD11

F3 A11/IAD10

F4 FL1

F5 NC

F6 NC

F7 D7/IWR

D11

F9 D8

F10 NC

F11 D9

F12

XTAL

G1 NC

G2 GND

G3 A10/IAD9

G4 NC

G6 NC

G7 D6/IRD

G8 D5/IAL

G9 NC

G10 NC

G11 D4/IS

G12 CLKIN

H1 GND

H2 GND

H3 GND

H4 Vddint

H5 DT0

H6 TFS0

H7 D2/IAD15

H8 D3/IACK

H9 GND

H10 NC

H11 GND

H12 CLKOUT

J1 Vddint

J2 NC

J3 Vddext

J4 Vddext

J5 SCLK0

J6 D0/IAD13

J7 RFS1/IRQ0

J8 BG

J9 D1/IAD14

J10 Vddint

J11 Vddint

J12

NC K1

NC K2

NC K3

BMS K4

DMS K5

RFS0 K6

TFS1/IRQ1 K7

SCLK1 K8

ERESET K9

EBR K10

BR K11

EBG K12

PF4 + IRQE L1

NC L2

PF6 + IRQL1 L3

IOMS L4

GND L5

PMS L6

DR0 L7

GND L8

RESET L9

ELIN L10

ELOUT L11

EINT L12

PF5 + IRQL0 M1

PF7 + IRQ2 M2

NC M3

CMS M4

GND M5

DT1/FO M6

DR1/FI M7

GND M8

NC M9

EMS M10

EE M11

ECLK M12

U201

DSP-2185MKCAZ-300

R214

680K

R215

N.F.

C218

N.F.

R211

N.F.

C208

N.F.

C207

N.F.

7DSP_CLK

C223

N.F.

0VA

R238

100R

7REF_SHIFT

X200

N.F.

C222

10n 0VA

.B06.02.07

..CM .. .UPDATED TO REV BU089 .C21.06.07

..CM .. .UPDATED TO REV CU128

2.4V P-P

3V P-P

15.36MHz

30.72MHz

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 3: PLA

Error : SIMOCO-1.WMF file not found.

ORDER DRAWN REMARKS EXAM APPD DATE REV

SRM9000 RADIO BOARD

6102 349 6232

3 of 12

ORDER DRAWN REMARKS

PROG LOGIC ARRAY

R326

1k0

U301C

LM239DR2G

0VA

0VA 0VA

U301B

LM239DR2G

0VA

3V3

R334

100K

3V3

0VA

BAT_SW

0VA

5V_D

BATTERY VOLTAGE

LOOP_VOLTS

EXT_SENSE1

C327

10n

R327

100K

R335

100K

R333

100K

R330

220K

3V3

R331

1k0

C326

N.F.

PA_ON 9

R336

10k

PWR_SENSE

C332

10n

0VA

R318

10k

TX_PWR

PWR_OFF

0VA

C333

10n

R329

4k7

3V3

R325

47k

R313

10k

C312

100n

R310

10k

C309

100n

0VA

R307

N.F.

C306

N.F.

MF25

0VA

MF2

MF3

MF4

R305

10k

MF5

C304

100n

MF6

0VA

MF7

MF24

RF_GAIN

0VA

DA_1

R311

10k

TUNE_2

C310

100n

TUNE_1

0VA

R304

N.F.

C305

100n

0VA

IF_GAIN

R312

10k

C311

100n 0VA

R306

10k

0VA

AFC

STBY

MOD_SW

5V_D

DONE

TX_MODE 8

3V3

2V5

0VA

2V5

3V3

0VA

2V5

3V3

0VA

2V5

3V3

RX_DATA2

GSEL

LB_RESET

0VA

R316

10k

C318

10n

0VA

/RD

R317

10k

C320

10n

0VA

3V3

2V5 0VA

3V3

0VA

2V5

0VA

C337

100n 0VA

C336

100n

0VA

C338

100n

0VA

C339

100n

0VA

C329

100n

0VA

C331

100n

0VA

C330

100n

0VA

C316

100n

0VA

C314

100n

0VA

C315

100n

0VA

C302

100n

0VA

/WR

CLKOUT

CLK_SHIFT

TA_/REP 6

LOCK 7

CSC_0

SCLK0

IRQ8

SINT

SOFS

/RESET

GCLK

GDAT

NCONFIG 2

L3D

L3C

C0FL

CLRC

CCLK

MF17

3V32V5

0VA

3V3

0VA

C340

100n

0VA

C341

100n0VA

C342

100n

0VA

2V5

C300

10n

0VA

3V3

C301

10n 0VA

0VA

3V3

L300

R339

220K

R340

10k

5V_D

C328

1n0

MF25

MF2

MF3

MF4

MF5

MF6

MF7

MF24

0VA

C324

10n

C343

10n

0VA

R300

1k0

3V3

R301

10k

3V3

PTT_IN1

C323

10n

0VA

SPKR_ON 8

0VA

5V_D

R344

N.F.

0VA

ANALOG_IN

5V_A

R345

100K

0VA

5V_D

DATA_EN

C344

100n

R332

1k5

0VA

Y1b

Y0b

Zb 15

10 Vdd 16

Vee 7

Vss 8

U302A

MAX4053ACSE

BAT_SENSE

MF10

IGN_SENSE

R350

10k

0VA

C317

10n

0VA

D15

D14

D13

D12

D11

D10

D11

D12

D13

D14

D15

MF10

0VA

TX_DATA2

0VA

R320

10k

C322

1n0

R349

10k

C347

1n0

0VA

TCK

TDI

TDO

TMS

TRST

MOD_BAL

0VA

C349

10n

R351

10k

PTT_IN2

TP302 TP305

5V_D

R354

100K

R355

100K

5V_D

R356

100K

CCLK

L3C

CLRC

L3D

CSC_0

CCLK

L3D

CLRC

TRST

MF9

TMS

MF17

L3C

0VA

3V3

R363

N.F.

L3M_A 8

R324

N.F.

ALIGN_SEL

C308

100n

TP310

TP352

TP354

TP355

TP356

TP358

TP373

TP348

TP346

TP345

TP316

TP311

TP313

TP331

TP349

TP371

TP372

TP367

TP347

TP344

TP320

TP304

TP303

TP370

C325

10n

TP306 TP307

TP330

TP360

TP359

TP351

TP350

TP328

TP366

TP327

TP301

TP364

TP308

TP342

TP341

312

U301A

LM239DR2G

U301D

LM239DR2G

VCO_BIAS

R343

10k

L3M_B

OPTION ON/OFF

MF9

MF11

MF12

MF13

MF14

MF15

MF16

MF18

MF19

MF20

MF21

MF23

TP368

RX_DATA1

TX_DATA1

R341

47k

3V3

0VA

R346

220K

/RESET

OUTPUT0

VCAP_ADJ

R328

8K2

C321

N.F.

C319

N.F.

0VA

R353

100R

0VA

C313

10n

TP309

TP314

R358

100K

5V_D

R359

100K

5V_D

R323

2k2

C346

100n

R303

220R

R315

N.F.

R352

1k0

R360

680K

5V_TX

MF8

L301

SCLK1

TFS

10 TFS

C352

10n

R321

1k0

0VA

C353

10n

CURRENT_SENSE

R308

2k2

C307

100n

R309

3k3

C348

10n

0VA

C303

100n

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

AUDIO_EN2 8

AUDIO_EN4 8

RAMP

MF13

10 PF6

CURRENT_CAL

0VA

C334

100n

L3M_B

0VA

R319

1k0

R302

1k0

R364

1k5

R342

100K

R314

10k

R357

680K

AUDIO_EN3

R347

100K

5V_D

TP362

TP361 TP363

AUDIO_EN1

AF_GAIN

R361

100K

5V_D

R362

100K

5V_D

R322

1k0

0VA

13V8_UNSW_F

R365

680K

R366

470K

D301

BZX84-C5V6

0VA

R367

10k

PWR_STATUS

A10

A11

A12

A13

A14

A15

A16

B10

B11

B12

B13

B14

B15

B16

C10

C11

C12

C13

C14

C15

C16

D10

D11

D12

D13

D14

D15

D16

E10

E11

E12

E13

E14

E15

E16

F10

F11

F12

F13

F14

F15

F16

G10

G11

G12

G13

G14

G15

G16

H10

H11

H12

H13

H14

H15

H16

J10

J11

J12

J13

J14

J15

J16

K10

K11

K12

K13

K14

K15

K16

L10

L11

L12

L13

L14

L15

L16

M10

M11

M12

M13

M14

M15

M16

N10

N11

N12

N13

N14

N15

N16

P10

P11

P12

P13

P14

P15

P16

R10

R11

R12

R13

R14

R15

R16

T10

T11

T12

T13

T14

T15

T16

U300

SRMSRP10

C351

10u

.A09.10.06

..CM .. .INITIAL REALEASEU057

R348

10k

R370

10k

C335

100n 0VA

AFC_SW

5V_D

R369

N.F.

.B06.02.07

..CM .. .UPDATED TO REV BU089

ALC_SET

0VA

C345

100n

R337

10k

TP343

TP300

.C21.06.07

..CM .. .UPDATED TO REV CU128

30.72MHz

0VA

C350

N.F.

0VA

C354

N.F.

.D07.12.07

..CM .. .UPDATED TO REV 2U167

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 4: Receiver

ORDER DRAWN REMARKS EXAM APPD DATE REV

1270 Ferntree Gully Rd Scoresby Australia 3179

6102 349 6232

RECEIVER

4 of 12

R465

47R

Q461

BFR93AW

R469

4k7

R467

10k

C465

10n

C467

10n

L463

820n

R468

3k3

C464

10p

L462

820n

C461

27p

C462

10p

RX_LO1

R473

1k2

C469

10n

0VA

C474

12p

5V_RX

1st I.F. FILTER

IQ DEMODULATOR

E401

SHIELD

E402

SHIELD

0VA 0VA

C476

1n0

L491

1u0

C482

1n0

0VA

C483

1n0

0VA

C496

10p

L492

1u0

C497

10p

3Q3

C498

10n

0VA

C480

1n0

0VA

3Q3

0VA

3Q3

C484

10n

0VA

C485

10n

0VA

R466

47R

0VA

R483

33K

0VA

I_CH

Q_CH

C486

10n

R477

1k0

R498

470R

R499

470R

C473

1p5

IF_GAIN

R484

10R

0VA

RX_IN

C463

10p

C471

1p5

C472

1p5

R472

100R

R471

33R

C468

N.F.

R474

470R

TP460

Vcc1 1

Vcc2 2

Vcc3 3

CDMA IN+

CDMA IN-

GND 6

GND 7

FM IN+

FM IN-

BG OUT

DEC

LO-

LO+

IN SEL

Q OUT- 15

Q OUT+ 16

GND 17

FL- 18

FL+ 19

GND 20

I OUT+ 21

I OUT- 22

U481

RF9957A

Z471A

45T122CF

Z471B

45T122CF

U491A

LMV358M/NOPB

U491B

LMV358M/NOPB

0VA

5V_A

0VA

1V65

C489

100n

R485

1k0

0VA

R486

220K

R487

220K

R488

220K

R494

220K

R495

220K

R496

220K

R493

220K

R490

220K

C470

N.F.

C475

N.F.

R475

R476

3k3

C460

82p

C495

4n7

C491

4n7

C490

47p

C494

47p

L461

180n

R489

N.F.

R497

N.F.

R492

N.F.

R491

N.F.

C492

47p

C493

47p

Z430

970MHz

L431

8n2

L432

8n2

C431

5p6

C436

12p

C430

22p

C432

4p7

C441

3p9

C440

3p3

C443

22p

0VA 0VA 0VA

0VA 0VA

0VA

C435

0p6

0VA

C437

N.F.

0VA

R422

4k7

C433

1n0

0VA

R412

220R

R409

1k0

R407

47R

5V_RX

R421

C406

47p

0VA

C404

N.F.

C417

100n

L406

3n3

0VA

C403

3p3

0VA

C424

10p

C401

100p

L405

3n3

0VA

0VA 0VA

R406

2k2

R405

12k

C418

100n

0VA

R404

N.F.

5V_RX

C426

N.F.

L407

N.F.

L408

N.F.

Gnd

Out 2

Gnd

U401

N.F.

0VA

C411

N.F.

0VA

C414

N.F.

0VA

C408

N.F.

0VA

0VA0VA

C439

4p7

0VA

R423

4k7

C438

1n0

0VA

R454

220K

R453

47k

R450

680K

-12V

R459

220K

R458

47k

R455

680K

-12V

3TUNE_2

TUNE_1

TP410

TP414

R451

10k

R456

1k0

0VA 0VA

3P3

R452

4k7

R457

4k7

TP412

TP411 TP415

TP416

Q452

BC859CW

Q451

BC859CW

Q454

BC859CW

Q453

BC859CW

C450

N.F.

0VA

C452

N.F.

0VA

Q401

N.F.

0VA

R403

N.F.

0VA

C415

N.F.

RF_GAIN

0VA

R427

10R

R426

470R

R428

470R

0VA 0VA

L449

10n

C447

10p

0VA

R408

N.F.

0VA

RX_LO2

0VA

Q404

BFR380F

D401

N.F.

R480

N.F.

R482

N.F.

0VA 0VA

RF AMP (WITH BYPASS)

RF AMP (FIXED GAIN)

TUNED FILTER

MIXER

IF AMPLIFIER

SAW FILTER

R462

N.F.

R461

N.F.

R463

N.F.

0VA 0VA

D431

1SV229

D432

1SV229

GND GND

U441

MAMXSS0012

Q403

BC859CW

Q402

BC859CW

0VA

R402

N.F.

0VA0VA0VA0VA

0VA

C479

1u0

C445

3p9

L448

22n

C 2006 TMC Radio Pty Ltd ACN 099 952 977

C481

N.F.

R414

N.F.

L402

3n3

C400

N.F.

0VA

C410

1u0

0VA

C451

10u

C499

12p

0VA

C487

10n

0VA

Z431

970MHz

C434

4p7

0VA

C488

N.F.

.A09.10.06

..CM .. .INITIAL REALEASEU057

SRM9000 RADIO BOARD

C412

N.F.

C413

N.F.

C422

100p

C409

N.F.

C421

100p

C419

10n

C405

N.F.

R424

820R

SHIELD E401

SHIELD E402

(-7.5dBm)(-8dBm)

L409

N.F.

0VA

C466

1n0

.B06.02.07

..CM .. .UPDATED TO REV BU089

0VA 0VA

0VA

L401

6n8

0VA

C402 deleted

C407

3p3

D402

MBD330DWT1G

Z400

860.5MHz

FILTER SAW

TP441

TP408

6TUNE_1N

.C21.06.07

..CM .. .UPDATED TO REV CU128

C459

150p

.D07.12.07

..CM .. .UPDATED TO REV 2U167

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 5: Transmitter

ORDER DRAWN REMARKS EXAM APPD DATE REV

E502

SHIELD

E501

SHIELD

0VA 0VA

E506

SHIELD COVER

E505

SHIELD TRAY

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

0VA

6102 349 6232

TRANSMITTER

5 of 12

D581

MA4P1250

0VA

L573

47n

0VA

L592

L593

L594

R591

47k

L591

7n 0VA

0VA 0VA 0VA 0VA 0VA

R573

15R

Q571

BCX51

Q572

BC849CW

R575

150R

R579

4k7

C589

2p7

C592

1p0

C595

2p7

C598

2p7

C590

1p0

Q573

PMMT491A

0VA

13V8_UNSW

R577

2k2 0VA 0VA

C593

1p0

RX_IN

C581

1n0

0VA

C596

1p0

50_8

C599

47p

0VA

S501

0VA

50_2

PA_ON

R574

22R

R578

4k7

C582

N.F. 0VA

D582

BAR88-02V

D583

BAR88-02V

C587

10n

R567

0VA

C563

N.F.

0VA

L571

C566

22n

0VA

C574

1n0

0VA0VA

13V8_UNSW

U551A

LMV358M/NOPB

0VA

5V_TX

C555

10n

R562

39k

0VA

TX_PWR

L561

15n

R568

N.F.

C569

1p8

R569

470R

C568

1n0

D561A

BAS70-04W

D561B

BAS70-04W

C557

1n0

0VA

0VA 0VA

0VA

R559

2k2

0VA

U551B

LMV358M/NOPB

C571c

100n

C552

1n0

0VA

(16dBm) (45dBm)

0VA0VA

0VA0VA0VA 0VA0VA0VA 0VA

C579b

1n0

C579a

100p

C578c

10n

C571b

1n0

C571a

100p

C579c

10n

C578b

1n0

C578a

100p

C577

10n

0VA

C573

10u

0VA

C567

N.F.

0VA

D551A

BAV99W

R556

100K

R558

100K

Q551

BC849CW

0VA

5V_TX

R563

10R

R572

N.F.

R571

N.F.

R565

C554

100n

C553

100n

C551

100n

C550

N.F.

0VA

C541

1n0

0VA

-t

R554

100k

C556

10n

0VA

R561

10k

R544

100K

R546

100K

0VA

R564

10R

L572

C562

10n

C565

N.F.

R547

33K

R548

680K

BATT_IN

16mohms

R566

39k

4k7 @ t = 85°C

R549

680K

0VA

R542

180K

R540

68K

R541

47k

5V_TX

R557

470R

R545

180K

0VA

R543

33K

CURRENT_CAL

CURRENT_SENSE 3

0VA

C542

N.F.

POWER AMPLIFIER MODULE

HARMONIC FILTER

R551

68k

R552

220K

R553

39k

0VA

C560

1u0

C584

10p

C583

12p

0VA

C588

2p7

C585

3p9

0VA

C586

N.F.

R576

100K

L581

47n

0VA

C572

N.F.

C575

1u0

C576

1u0

0VA

C543

N.F.

0VA

Q531

N.F.

0VA

C532

10n

0VA

C539

4p7

R536

270R

R538

270R

R537

22R

Q532

BC849CW

8V_RF

0VA

R534

10R

0VA

C531

100p

0VA

C538

100p

0VA

R532

10k

C533

N.F.

L531

10n

R530

1k8

R533

10k

0VA

C534

10n

R531

22K

C536

10u

6TX_RF

5V_TX

R501

1k0

R503

N.F.

C504

N.F.

C503

100p

C511

4p7

0VA 0VA 0VA 0VA0VA

0VA

TX BUFFER

C506

10n

0VA

5V_TX

R504

10R

R511

120R

R513

120R

R512

68R

0VA 0VA

(5dBm)

L501

8n2

0VA

0VA 0VA

C523

4p7

R525

150R

R527

150R

R526

47R

Q522

BC849CW

0VA

0VA 0VA

R523

2k2

L502

10n

C514

4p7

C512

47p

C517

N.F.

R524

10k

0VA

C524

10n

R522

82R

C518

10u

8V_RF

R521

10R

0VA

C522

100p

C516

10n

0VA0VA

C515

100p

0VA

R515

1k2

5V_TX

Q521

BFR380F

Q501

BFR380F

5V_TX

TX DRIVER AMPLIFIER

TX PRE-DRIVER AMPLIFIER

C526

47p

R505

68R

R514

10R

R528

10R

C513

1u0

C530

1u0

(1dBm)

(10dBm)

(10dB)

(7dB)

(4dB)

(20dBm)

(17dBm)

R502

1k0

C501

47p

POWER CONTROL

THERMAL SHUT-BACK

MAX CURRENT LIMITER

RF DETECTOR

ANTENNA SWITCH

U561

RA45H8087M-101

0VA

C598a

N.F.

0VA

C595a

N.F.

0VA

C592a

N.F.

0VA

C592b

N.F.

R539

N.F.

0VA

C595b

N.F.

R520

N.F.

C527

4p7

L522

10n

0VA

C592c

N.F.

Q531a

BFR380F

C502

4p7

L511

8n2

L521

10n

R529

1k2

R516

1k5

R535

68R

.A09.10.06

..CM .. .INITIAL REALEASEU057

SRM9000 RADIO BOARD

C507

N.F.

R592

R593

R594

C535

100p

C537

10n

C521

10n

C508

10n

C509

100p

C525

100p

MAY NEED TO CHANGE TO TANTALUM!

SHIELD E503

SHIELD E502

SHIELD E501

TRAY E505

COVER E506

P/O SHIELD E603

E503

SHIELD

(8dBm)(15dBm)

(-1dBm)

(CH0: 0.8dBm)

(CH1: 0.6dBm)

(CH2: 1.9dBm)

(CH3: 1.6dBm)

(CH0: 15.9dBm)

(CH1: 15.8dBm)

(CH2: 15.4dBm)

(CH3: 14.5dBm)

R560

100R

0VA

.B06.02.07

..CM .. .UPDATED TO REV BU089

0VA

D580

N.F.

C580

N.F.

TP561

TP531

TP521

TP501

.C21.06.07

..CM .. .UPDATED TO REV CU128

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 6: VCO

ORDER DRAWN REMARKS EXAM APPD DATE REV

C611

N.F.

L601

100n

C624

10p

C625

2p2

L624

18n

R632

100R

C640

2p7

C639

5p6

R643

2k2

R639

3k3

R645

2k2

C647

27p

C646

10p

C645

10n

C632

100n

C628

10n

R638

1k0

0VA

0VA 0VA

0VA 0VA 0VA

0VA

R627

N.F.

C633

10u

C644

10u

Q622

BC849CW

R624

1k0

R625

10R

R626

N.F.

5V_RFF

PRIMARY VCO

R629a

N.F.

0VA 0VA 0VA

R635

220R

R636

4k7

R644

100R

0VA

D641

BAR88-02V

D642

BAR88-02V

C653

10n

5V_RX

C654

100p

0VA

C657

10p

R650

N.F.

R649

100K

0VA

L642

12n

R642

680R

C659

1n0

R648

270R

R647

1k2

C656

1n0

0VA

5V_RFF

Z620

1250MHz

0VA

C629

47p 0VA

D610

1SV229

C614

N.F.

C641

2p2

0VA

R628

10k

R640

560R

R641

82R

0VA

C649

100p

L623

100n

R618

N.F.

R620

N.F.

R619

N.F.

0VA

C620

N.F.

C619

N.F.

R617

N.F.

C618

N.F.

0VA

5V_RFF

D624

N.F.

0VA

0VA0VA

R652

N.F.

R654

N.F.

0VA 0VA

Q623

BFR380F

Q631

BFR380F

Q632

BFR380F

Q640

BFR380F

L621

100n

L652

27n

D660

1SV229

L661

8n2

C661

100p

C667a

N.F.

R666

100K

C662

2p2

C667

2p2

0VA

0VA 0VA

0VA

R665

10k

C694

10u

R678

TX MIXER

R659

820R 0VA

R676

4k7

0VA

D684

BAR88-02V

D682

BAR88-02V

C688

10n

0VA

GND GND

U650

MAMXSS0012

Z681

815.5MHz

L662

8n2

D661

1SV229

C670

3p3

C672

2p2

0VA

R664

100K

L663

3n3

D683

BAR88-02V

D681

BAR88-02V

Z683

815.5MHz

Z684

860.5MHz

R680

R679

2k2

R681

2k2

860.50MHz

815.50MHz

BUFFER

C668

N.F.

C673

N.F.

C683

100p

C684

15p

C686

100p

C687

15p

C697

3p3

L692

12n

R696

56R

C691

100p

0VA 0VA

R690

1k0

R692

2k2

R691

4k7

R695

0VA

C692

10n

0VA

C698

N.F.

R694

N.F.

R693

N.F.

0VA

C696

10n

0VA

C680

100p

L672

N.F.

R674

56R

C675

100p

0VA 0VA

R668

1k0

R670

2k2

R669

4k7

R673

10R

0VA

C676

10n

0VA

C681

N.F.

R672

100R

R671

N.F.

0VA

C679

10n

0VA

5V_RF

R698

22R

R697

270R

R699

270R

0VA 0VA

R657

33R

R658

150R

0VA 0VA

Q670

BFR380F

Q691

BFR380F

L650

N.F.

C660

N.F.

0VA

L653

N.F.

C663

N.F.

0VA

L651

N.F.

L664

8n2

L665

8n2

4TUNE_1N

TX_LO2

0VA

FIN_RF 7

RX_LO1 4

0VA

TX_MOD2

TX_RF 5

0VA

6102 349 6232

PRIMARY VCO

6 of 12

TUNED FILTER SWITCHED SAW FILTERS

BUFFER

Z682

860.5MHz

VCAP_BIAS

LOOP_VOLTS

C601

100p

C615

100p

0VA

R601

680K

7FAST

LOOP FILTER

0VA

R612

6k8

CPP_RF

C602

N.F.

C606

N.F.

Y1a 13

Y0a 12

Sa 11

U601C

MAX4053ACSE

Y1c

Y0c

Zc 4

U601B

MAX4053ACSE

0VA

R615

N.F.

0VA

R614

Y1b 1

Y0b 2

Sb 10

Vdd

16 Vee

7Vss

U601A

MAX4053ACSE

16V

0VA

C610

N.F.

C608

N.F.

C634

100p

0VA

Q621

BC859CW

C626

47u

C623

470p 0VA

R621

100K

C638

10n

R605

680K

R604

100R

C604a

1n0

C603

1n0

C685

10n

0VA

C689

10n

0VA

5V_RF

Q601

BC849CW

R616

100K

C600

1n0

C616

100p

0VA

C617

100p

0VA

TA_/REP

C665

10n 0VA

R600

2k2

C664

100p

R610

100R

5V_TX

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

0VA

C613

8p2

E600

SHIELD

0VA

E601

SHIELD

0VA

C666

3p3 0VA

0VA

TP682

TP681

TP661

TP653

TP652

TP651

TP601

TP692

R675

12k

R686

12k

R677

12k

R685

12k

R687

4k7

R653

33R

R688

100R

R684

100R

.A09.10.06

..CM .. .INITIAL REALEASEU057

SRM9000 RADIO BOARD

C606a

N.F.

C605

470n

C607a

22n

C607

22n

C609

N.F.

C609a

8n2

C608a

N.F.

C610a

N.F.

R602

1k0

R603

N.F.

R609

3k3

R611

N.F.

R613

N.F.

R606

N.F.

R607

N.F.

C612

33p

C678

100p

C682

27p

C682a

N.F.

C674

100p

C669

100p

C671

10n

C699

47p

C699a

N.F.

C695

100p

C690

100p

C627

100p

C631

100p

C630

10n

C644a

100p

-0.4V

Q682

BC859CW

R682

10k

R683b

4k7

0VA

C650

100p

0VA

2.25V

1.5V

NOTE: These values give approx 5ms/15ms lock-time for ±500Hz.

FracN Settings = 5.0ms/1500uA/85uA

(-12dBm)

(-7dBm)

(-9dBm)

(0dBm)

SHIELD E602

SHIELD E601

SHIELD E600

(3dBm)

(0dBm)

(-6dBm)(-1dBm)

(-2dBm)

(-9dBm)

(1.4dBm)

(3.7dBm)(2.5dBm)

(3dBm) (3.5dBm)

(8dBm)

Q681

BC859CW

0VA

5V_RF

R683

100K

(CH0: 5.7dBm)

(CH1: 4.8dBm)

(CH2: 3.9dBm)

(CH3: 3.8dBm)

C651

100p

0VA

C648

100p

0VA

R637

100R

C647a

27p

0VA

L641

12n

R683a

4k7

8V_RF

R626a

330R

R625a

N.F.

/REP

/TA_REP

0VA

E603

SHIELD

E602

SHIELD

0VA

SHIELD E603

0VA

L670

8n2

0VA

L691

10n

C693

3p3

5V_TX 5V_TX

R671a

22R

R693a

22R

0VA

Q602

BC849CW

R616a

100K

R605a

680K

0VA

C604

1n0

PLL_STB

R689

220R

0VA

(2dB)

C642a

N.F. 0VA

.B06.02.07

..CM .. .UPDATED TO REV BU089

0VA

C642

N.F. 0VA

C677

3p3

U620A

LMV358M/NOPB

U620B

LMV358M/NOPB

D621

N.F.

D623

BAT62-02W

D622

BAT62-02W

R623

100R

R634

10k

R630

82K

R631

15k

R629

18k

4V_VCO

0VA

C636

330p

C638a

N.F.

0VA

C636a

100n

R646

680K

0VA ALC_SET 3

R655

N.F.

0VA

VCO_BIAS 3

R633

10k

C637

100n

0VA

R651

10k

C655

100n

0VA

PA timing = 7.0ms

TP691

TP680

TP631

TP650

0VA

C635

10n

C651a

N.F.

R608

680R

R622

82K

C621

100p

0VA

C622

1p5

R621a

47k

C658

100p

0VA

C658a

100p

.C21.06.07

..CM .. .UPDATED TO REV CU128

5V_RF

R667

L622

100n

C621a

10n

R662

10R

R661

470R

R663

470R

C643

1p5

C619a

N.F.

0VA

R656

150R

.D07.12.07

..CM .. .UPDATED TO REV 2U167

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 7: Synthesiser

ORDER DRAWN REMARKS EXAM APPD DATE REV

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

6102 349 6232

SYNTHESIZER

7 of 12

5V_RFF

0VA

R712

10k

REFERENCE OSCILLATORS

R715

10R

R703

47k

C701

10n

R702

1k0

0VA

R730

10R

3P3

FIN_RF

CPP_RF

PLL_CLK

PLL_DATA

PLL_STB

LOCK

0VA

C764

N.F.

3AFC

R701

10k

0VA

R700

10k

0VA

C717

47p

0VA

R707

47R

C729

N.F.

C747

10n

C728

10n

VCAP_ADJ

R714

N.F.

MOD_BAL

TX_MOD1

VCAP_BIAS 6

TP711

TP712

R716

2k2

R717

5K6

C732

100n

0VA

C718

100n

C733

1u0

TP743

TP744

0VA

EXT_REF

R745

100R

R713

N.F.

C715

22p 0VA

0VA

5V_RFF

2DSP_CLK

0VA

2REF_SHIFT

0VA

FINIF 13

FINRF-

CPRF

GND 15

VDDIF2 17

VDDIF1 14

CPIF 16

REFOUT 18

REFEN 19

FINRF+

REFIN 20

CLK

GND

VDDRF2

DATA

VDDRF1

FLRF 23

VDDRF4 24

VDDRF5

VDDRF3 22

NC 21

GND

U721

LMX2485E* NOPB

0VA

C722

10n

FAST

3P3

C726

100n

0VA

C723

100n

0VA

R785

N.F.

SYNTHESIZER

C724

100n

0VA

C725

100n

0VA

C720

100n

0VA

R799

R784

ADJ

OUT 3

VCC

GND 2

U711

15.36MHZ

C740

1n0

Q730

BFR93AW

R721

18k

C742

10n

R725

1k5

0VA 0VA

C739

18p

C735

47p

C734

10n

D730

1SV229

L730

100n

0VA

C737

10n

0VA

R732

10k

0VA

R722

27k

Q731

BC849CW

90MHz LOCAL OSCILLATOR

R720

2k2

R724

220R

0VA

0VA0VA

D731

1SV229

5V_RFF

C744

100n

0VA

C738

N.F.

C741

N.F.

0VA

C754

1n0

0VA

R739

N.F.

0VA

R738

15R

C757

18p

R743

470R

L734

100n

C751

10n

0VA

L732

220n

0VA

R728

18R

R727

270R

0VA 0VA

5V_RFF

RX_LO2 4

0VA

TX_LO2 6

0VA

R742

N.F.

0VA

L751

10u

R753

N.F.

0VA 0VA

5V_RFF

0VA

13 8

VCC

GND

U760

74HC40103PW

0VA

R759f

N.F.

R758b

N.F.

R758a

N.F.

R758c

N.F.

0VA 0VA 0VA

0VA

REFERENCE OSC. MODULATOR

R759e

N.F.

R759d

N.F.

0VA 0VA 0VA

5V_A

0VA

U761A

LMV358M/NOPB

0VA

5V_RFF

0VA

DIVIDER (/32)

Q751

BC849CW

R758d

10k

R759c

10k

R759a

10k

R759b

10k

R758f

10k

R758e

10k

C766

10n

R754

3k3

R751

47k

R750

47k

R752

270R

R746

10R

R760

33R

C762

1u0

R748

680k

R762

47k

R767

47k

R768

2k2

C771

1u0

R770

100k

C770

27p

Q771

BC859CW

Q773

BC849CW

Q772

BC849CW

C778

150p

Q775

BFR93AW

Q774

BFR93AW

Q776

BFR93AW

C774

10n

R765

10R

C775

10u

U761B

LMV358M/NOPB

R778

8K2

R777

10k

0VA

5V_RFF

C779

N.F.

R769

470R

C777

N.F.

R764

2k2

R763

4k7

R766

100k

R771

820R

C776

4p7

TP745

TP746

TP747

TP748

C763

100n

C761

100n

C760

100n

R773

3k9

R775

8K2

R774

820R

0VA

R772

10k

R747

22K

C772

33p

R776

1k0

R798

N.F.

R795

10R

R796

10R

R792

100k

R791

100k

R788

100k

C780

1n0

Q782

BC859CW

Q783

BC849CW

C783

N.F.

5V_RFF

0VA

V.C.O. VARICAP POSITIVE SUPPLY

C781

10n

0VA 0VA

R797

47k

16V

C787

10n

0VA

D782A

BAT54SW

D782B

BAT54SW

0VA

L780

10u

0VA

1V65

C773

N.F.

R729

270R

C755

10n

R734

R733

N.F.

R735

3k3

R740

47R

R736

3k3

R737

100R

C750

6p8

Q734

BFR380F

0VA

C758

10n

0VA

C745

22p

C746

100p

Q780

BC849CW

Q781

BC849CW

0VA

C784

10n

ADJ

OUT 3

VCC

GND 2

U712

15.36MHZ

Q700

BFR380F

C704

1n0

C705

100p

L703

1u0

R705

100K

R704

1k2

C706

10n

R709

10k

0VA

C748

N.F.

90MHz BUFFER

C713

10n

C788

1u0

C786

10u

C721

100n

R787

15k

R786

22K

R790

8K2

D780B

BAV99W

D780A

BAV99W

R789

N.F.

C714

47p

0VA

Q712

BC859CW

Q711

BC859CW

C712

N.F.

R708

10k

R711

47k

R710

4k7

0VA

C716

10n

TP713

TP714

C743

1u0

L733

470n

0VA

C769

100p

C782

N.F.

.A09.10.06

..CM .. .INITIAL REALEASEU057

SRM9000 RADIO BOARD

C765

N.F.

R793

N.F.

R783

0R 0VA

R794

10k

R719

2k2

R718

220R

(-8dBm)

(-18dBm)

(0.5dBm)

SHIELD E700

E700

SHIELD

0VA

(-7.5dBm)

(6.6dBm)

(-8dBm)

R731

10k

3P3

3V P-P

AFC_SW

0VA

R712a

10k

C719

100n

TP715

.B06.02.07

..CM .. .UPDATED TO REV BU089

0VA

.C21.06.07

..CM .. .UPDATED TO REV CU128

SHIELD E701

E701

SHIELD

0VA

C711

1u0

TX_MOD2

1V65

C767

1n0

R1 11

INH

PC1out

2PC3out 15

SIGin 14

VCC 16

C1a

DEMout 10

VCOout

GND

R2 12

PC2out 13

PCPout

COMPin

VCOin 9

C1b

U701

74HC4046APW

C702

6p8

L701

10u

R706c

22K

R706a

10k

R706b

470R

R706d

22K

R706

100R

R706e

N.F.

0VA

C707

22p

0VA

C708

1u0

0VA

C709

100n

0VA

5V_D

5V P-P

C709b

N.F.

0VA

C768

1u0

0VA

TP720

1.4~2.5VDC

3.6VDC

3.8V P-P

15.36MHz

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 8: TX/ RX Audio

ORDER DRAWN REMARKS EXAM APPD DATE REV

UDIO PRCCESSING

6102 349 6232

8 of 12

0VA

TX_MOD1

0VA

VssADC 1

VddADC 2

VINL

VrefADC 4

VINR

ADCref- 6

ADCref+ 7

TEST1

OVERFL

VddD

VssD

L3MODE

L3CLK

L3DAT

SCLK

LRC

17 TXD

18 RXD

TEST3

TEST2

VssDAC 22

VddDAC 23

VOUTR 24

VddAMP 25

VOUTL 26

VssAMP 27

VrefDAC 28

MCLK

U800

UDA1344TS

C813

100n

R825

10k

C814

100n

0VA

C816

100n

0VA

3C3

0VA

C807

100n

0VA

3V3

R816

10k

R815

10k

R814

10k

R819

10k

R818

10k

R817

10k

0VA

0VA0VA0VA

CCLK

CSC_0

CDI

CDO

CLRC

L3C

L3D

L3M_A

C0FL

C812

N.F.

C815

10u

0VA 0VA 0VA

Y1c 3

Y0c 5

Sc 9

U801B

74HC4053D

0VA

0VA0VA

I_CH

Q_CH

R824

1k8

5V_D

0VA

U802A

LMV358M/NOPB

0VA

AUDIO_OUT2

C825

100n

0VA

R861

10k

C866

47n

R863

22K

C873

1n0

R864

22K 0VA

13V8_UNSW_F

0VA 0VA

0VA

0VA0VA

RR 3

Vp 7

M/SS

Gnd1 2

Gnd2 5

U805

TDA1519B

Q810

BC849CW 13V8_UNSW_F

C831

100p

0VA

C832

100p

0VA

SPKR_OUT1

SPKR_OUT2

0VA

C829

N.F.

0VA

C842

10n

0VA

Y1a

Y0a

Za 14

U801C

74HC4053D

Y1b

Y0b

Zb 15

10 Vdd 16

Vee 7

Vss 8

U801A

74HC4053D

0VA

5V_A

0VA

U803A

LMV358M/NOPB

C854

100n

0VA

C852

1n0

0VA

U803B

LMV358M/NOPB

C849

100p

C848

1n0

0VA

C844

100n

5V_D

0VA

Q811

BC859CW

R854

100K

R852

22K

AUDIO_OUT1

TX_MODE

SPKR_ON

0VA

C855

10u

C863

100n

R865

6k8

0VA

R853

10k

Q813

BC849CW

R868

100K

R867

100K

5V_D

0VA

R866

100K

5V_D

C860

N.F.

0VA

C853

100p

C833

1n0

C856

1n0

AUDIO_IN1

OPTION_AUDIO1

5V_D

C867

N.F.

C868

N.F.

C869

N.F.

C871

N.F.

R874

1k2

0VA

C864

10u

0VA

C865

N.F.

0VA

CCLK

CSC_0

CDI

CDO

CLRC

L3C

L3D

L3M_A

C0FL

R805

1k0

0VA

R806

8K2

C801

100n

R801

N.F.

R803

10k

R802

100R

5V_A

0VA

C803

10u

EXT_SENSE1

0VA

R800

100K

TP805

3 2

D801B

BAV99W

1 3

D801A

BAV99W

3C3

TP802

TP801 C800

10n

C804

N.F.

TP807

MOD_SW

C802

10u

R834

100K

R823

10k

CCLK

CLRC

L3C

L3D

DATA_EN 3

TP852

TP840

TP841

TP849

TP833

TP831

TP854

TP850

TP856

TP855

U802B

LMV358M/NOPB

R809

680K

R808

680K

R807

10R

R811

10R

R821

N.F.

R820

N.F.

R822

N.F.

3V3

C819

100n 0VA

R810

10R

C839

10u

C818

100n

R832

12k

0VA

C872

100n

R850

100K

3A3

0VA

R843

5K6

R846

12k

R847

56k

R851

100K

TP851

0VA

C862

100n

R855

33K

TP853

TP803

TP804

TP842

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

Y1a 13

Y0a 12

Sa 11

U302C

MAX4053ACSE

Y1c 3

Y0c 5

Sc 9

U302B

MAX4053ACSE

AUDIO_EN2

AUDIO_EN4

R860

N.F.

R862

N.F.

AUDIO_OUT310

C857

10u

R858

N.F.

TP820

DEEMPH_AUDIO

1V65

0VA

C805

100n

R804

100R

R833

56k

R831

5K6

C809

N.F.

C811

N.F.

R835

680K

TP808

TP809

R840

10k

R841

10k

C817

10u

C820

N.F.

TP810

TP811

R827

680K

0VA

R826

18k

C840

4n7

C841

4n7

R812

680K

R813

N.F.

R869

N.F.

R870

C870

10n

C824

22p

R856

68k

R871

N.F.

R875

N.F.

TP858

TP857

AUDIO_EN1 3

Y1a

Y0a

Za 14

U806C

74HC4053D

Y1c

Y0c

Zc 4

U806B

74HC4053D

Y1b 1

Y0b 2

Sb 10

Vdd

Vee

Vss

U806A

74HC4053D

R857

27k

C858

100n

R849

6k8

AUDIO_EN3

AF_GAIN

5V_A

0VA

C859

100n

0VA

R872

R876

0VA

C806

1u0

C830

1u0

R859

N.F.

.A09.10.06

..CM .. .INITIAL REALEASEU057

SRM9000 RADIO BOARD

.B06.02.07

..CM .. .UPDATED TO REV BU089 .C21.06.07

..CM .. .UPDATED TO REV CU128

C861

47n

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 9: Power Supply

ORDER DRAWN REMARKS EXAM APPD DATE REV

POWER SUPPLIES

SRM9000 RADIO BOARD

6102 349 6232

9 of 12

D900

1.5SMC16AT3G

0VA

13V8_UNSW

C915

100n

0VA

13V8_UNSW_F

L900

FUSABLE LINK

C905

N.F. 0VA

10 13V8_UNSW

Q900

NTF5PO3T3G

(160mA Note 1)

C900

100n

Q902

BC859CW

R907

100K

R913

220K

0VA

PWR_ON

PWR_OFF

R908

10k

R922

4k7

0VA

C903

10n

PWR_SENSE

0VA

R903

10k

0VA

R906

10k

R924

680K

Q908

BC849CW

Q909

BC849CW

R902

15k

R905

22K

0VA

C916

1n0

0VA

1 3

D901A

BAT54SW

3V3

3 2

D901B

BAT54SW

0VA

Q907

BC849CW

2 AMP

IGN

R909

4k7

0VA

C937

100n

R911

15k

R910

4k7

0VA

1 3

D902A

BAT54SW

3V3

3 2

D902B

BAT54SW

0VA

3IGN_SENSE

C902

100n

C920

100n

C919

100n

C901

100n

0VA

5V_TX

5V_A

0VA

Q911

BC849CW

R931

4k7

R918

22K

0VA

TX_PON

R919

22K

C904

100p

D903B

BAT54SW

1 3

D903A

BAT54SW

C909

100n

C910

100n

C911

100n

D904B

BAT54SW

1 3

D904A

BAT54SW

C913

100n

D905B

BAT54SW

C912

100n

3 4

U904B

74HC04D

5 6

U904C

74HC04D

-12V

9 8

U904D

74HC04D

1 2

714

U904A

74HC04D

5V_D

0VA

Q904

BC859CW

R904

10k

0VA

5V_RX

0VA

Q906

BC849CW

R917

22K

0VA

RX_PON

C926

10n

0VA

C925

10n

0VA

Q916

BSN20

0VA

11 10

U904E

74HC04D

0VA 13 12

U904F

74HC04D

0VA

C939

N.F.

L910

1 3

D905A

BAT54SW

C914

N.F.

D906B

N.F.

D906A

N.F.

16V

4OUT 5

ADJ 1

ON/OFF

GND

3GND 6

UREG

U901

LM2931ACD2TR4G

Q917

BSN20

0VA

C923

22u

0VA 0VA

0VA0VA

4OUT 5

ADJ 1

ON/OFF

GND

3GND 6

UREG

U912

LM2931ACD2TR4G

C938

22u

0VA 0VA

0VA0VA

8V_RF

R932

15k

R915

47R

R936

47R

L901

L902

L903

L905

5V_D

TP913 TP924

TP925

C918

100n

0VA

C941

10u

0VA

C931

10u

TX_PSU+

0VA

R934

220R

C949

N.F.

C932

N.F.

0VA 0VA

R946

10R

R925

22R

R916

22R

(16mA - Rx/72mA - Tx Note 1)

(60mA Note 1)

(10mA - Rx/19mA - Tx)

(22mA - Rx Note 1)

(17mA Note 1)

Note 1. Currents indicated are typical for radio only in Rx squelched mode

0VA

3Q3

0VA

Q910

BC849CW

3V3

L904

R930

2k2

3C3

3P3

(14mA Note 1)

15.5mA

5.8mA

C907

100n

0VA

ON/OFF

OUT 5

GND

N/C 4

U903

LP2981 IM5X-2.5/NOPB

0VA

2V5

L909

C924

10u

R929

2k2

R948

150R

R947

150R

0VA

R952

2R2

TP964

TP965

TP966

TP967

TP968

TP962

3A3

0VA

R957

2R2

R958

2R2

R959

2R2

Q912

BC849CW

R901

1K8

TP963

TP960

TP961

TP969

C929

1n0

10 BAT_SW

4OUT 5

ADJ 1

ON/OFF

GND

3GND 6

UREG

U900

LM2931ACD2TR4G

0VA0VA

STBY

0VA

R938

15k

R937

8K2

R933

N.F.

0VA

R912

100K

0VA

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

F900

N.F.

0VA

L906

C947

4n7

0VA

C921

47u

C950

47u

C943

47u

0VA

R914

N.F.

0VA0VA

C906

1u0

C908

1u0

C917

1u0

C930

1u0

C945

1u0

C951

1u0

C934

1u0

C933

1u0

C922

1u0

C936

1u0

C935

1u0

D960B

BAT54SW

D960A

BAT54SW

C960

100n

C961

100n

C962

100n

D961B

BAT54SW

1 3

D961A

BAT54SW

C964

100n

3 2

D962B

BAT54SW

C963

100n

1 3

D962A

BAT54SW

C965

N.F.

R960

1k0

5V_D

C940

N.F.

C927

N.F.

C942

N.F.

C928

N.F.

0VA

R935

1k0

R926

1k2

R927

6k8

Q905

BC849CW

R921

22R

Q903

BC849CW

R941

22R

D907B

BAV70W

D907A

BAV70W

C944

N.F.

0VA

5V_RF

L908

0VA

C948

N.F.

.A09.10.06

..CM .. .INITIAL REALEASEU057

R940

1k0

R942

100R

R920

1k0

R923

100R

(40mA Note 1)

R900

220K

21.3mA

C946

100n

0VA

.B06.02.07

..CM .. .UPDATED TO REV BU089 .C21.06.07

..CM .. .UPDATED TO REV CU128

(53mA - Tx Note 1)

SRM9000X8 800MHz SERVICE MANUAL

TNM-M-E-0001

Sheet 10: I/O Connections

ORDER DRAWN REMARKS EXAM APPD DATE REV

I/O CONNECTIONS

SRM9000 RADIO BOARD

6102 349 6232

10 of 12

0VA0VA

C59

N.F.

TEST PORT

13V8_UNSW_F

0VA

TXD

RXD

TFS

RFS

MF8

18 FC0

OPTIONS CONNECTOR

100p

0VA

C20

100p

0VA

100p

0VA

100p

0VA

100p

0VA

100p

0VA

C74

100p

0VA

C17

100p

0VA

100p

0VA

100p

0VA

C10

100p

0VA

R88

100R

R24

100R

R69

18k

3V3

R86

100R

TX_DATA2

BC849CW

R89

4k7

0VA

PF6

PF4

100p

0VA

100p

0VA

C22

100p

0VA

C23

100p

0VA

R23

3k3

5V_D

R90

22K

0VA

STX

SRX

C77

100p

0VA

R84

680R

C76

100p

0VA

R85

100R

RX_DATA2

0VA

R83

1k0

0VA

L50

L51

C78

10n

13V8_UNSW_F

OPTION ON/OFF

GROUND

MIC AUDIO

MIC GND

H/S AUDIO

ON/OFF

TxDATA

RxDATA

13V8

AUDIO/PWR ON

IRESET

SIN

SOUT

AUDIO OUT

L3D

SCLK

RFS

TFS

PF4

PF6

RXD

TXD

CONF2

OPTIONS PTT

SWITCHED

AUDIO_OUT3

AUDIO_IN1

OPTION

AUDIO OPTION_AUDIO1

13V8

SWITCHED

IRESET

C19

10n

0VA

R21

C51

1n0 0VA

BATT_IN

C55

100p

0VA

C54

100p

0VA

SPKR_OUT1

SPKR_OUT2

N.F.

PTT_IN1

0VA

L56

L58

L57

L59

R95

1k0

0VA

R94

N.F.

0VA

Q50

BCX54-16

R63

1k0

0VA

OUTPUT0

C58

1n0

R93

220R

PTT_IN2

RJ CONNECTOR

DB15 CONNECTOR

PWR_ON

D17A

BAV99W

D17B

BAV99W

N.F.

0VA

D23A

BAV99W

R60

1k0

5V_D

D23B

BAV99W

C75

N.F.

EXTERNAL INTERFACE

13.8V UNSWITCHED

GROUND

CONTROL HEAD/MIC

MF19 (AUDIO I/P)

MF20 (AUDIO O/P)

BATTERY IN

GROUND

SPEAKER (+)

SPEAKER (-)

MF21 (IN#0)

IGN

MF23 (OUT#0)

R91

220R

R54

330R

R57

N.F.

0VA

R20

N.F.

L3D

L3M_B

L3C

220R

CLRC

CCLK

IRESET

R18

N.F.

C13

100p

0VA

C12

100p

0VA

C14

100p

0VA 0VA 0VA

R16

330R

R15

220R

R14

220R

R13

220R

R12

220R

CCLK

L3D

L3M_B

L3C

SPKR_OUT1

SPKR_OUT2

AUDIO_IN1

AUDIO_OUT1

OPTION_AUDIO1

L3M

L3C

CLRC

AUDIO IN/CCLK

100R

PF4

PTT_IN1

PF6

OUTPUT0

TFS

RFS

MF8

OPTION ON/OFF

RX_DATA2

TX_DATA2

FC0

D25A

BAV99W

D25B

BAV99W

R64

N.F.

R67

R68

N.F.

0VA

BC849CW

0VA

R55

270R

0VA

NTF5PO3T3G

D50

BZX84-C18

R59

6R8

0VA

C18

10u

MINISMDM110F/16

C52

4n7

R58

1k0

R98

100R

AUDIO_OUT2

0VA

OPTIONS PORT 1

0VA

3V3

/BG

/BR

EBG

EINT

EBR

ELIN

ECLK

ELOUT

EMS

ERES

0VA

TCK

TRST 3

TMS

TDO

TDI

0VA

MF20

MF9

MF11

MF12

MF13

MF14

MF15

MF17

MF18

MF19

MF21

ANALOG_IN

MF23

MF16

MF10

0VA

RXD

MF8

TXD

OptionsPort 2

MF5

MF6

RX_DATA1

TX_DATA1

PTT_IN2

MF2

MF25

MF4

MF7

MF3

/RESET

MF24

BAT_SW 9

0VA

5V_D

0VA0VA

R46

N.F.

0VA

R47

N.F.

0VA 0VA

TP030

TP033

TP032

TP026 TP025

TP023

TP027

TP028

TP022

TP024

IGN

PWR_ON

AUDIO_OUT2

0VA

D19

BZX84-C18

0VA

R96

10k

D11B

BAV99W

D11A

BAV99W

5V_D

AUX 2

/RESET

CCLK

L3C

L3D

(BOTTOM SIDE)

D24

BZX84-C5V6

D22A

N.F.

5V_D

D22B

N.F.

0VA

D15

BZX84-C18

D16

BZX84-C5V6

MF23A

EXT_SENSE2

MF21A

MF20A

MF19A

MF23A

EXT_SENSE2

MF20A

MF19A

MF20A

PTT_IN2

TXD

RXD

D20

BZX84-C5V6

MF21A

C56

1n0

C57

1n0

R44

N.F.

R45

N.F.

C37

1n0

C36

1n0

C35

1n0

C53

1n0

C34

N.F.

R48

N.F.

R49

N.F.

R52

N.F.

R53

N.F.

R51

N.F.

R50

N.F.

R61

N.F.

R19

N.F.

C71

100n

0VA

D12

N.F.

0VA

D18

N.F.

D21

BZX84-C5V6

C50

100p

TP029

TP021

CLRC

R10

100R

R11

100R

L3M_B

TFS

R29

N.F.

EXT_REF 7

N.F.

R27

N.F.

R26

N.F.

AUX 1

0VA

AUDIO_OUT1

MF17A

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

AUDIO_OUT3

AUDIO_OUT1

R22

D28

BZX84-C5V6

D26

BZX84-C5V6

D27

BZX84-C5V6

D13

BZX84-C5V6

R43

N.F.

0VA

R42

N.F.

C33

1n0

R39

N.F.

0VA

R38

N.F.

C32

1n0

MF17A

R30

MF10A

0VA

C25

N.F.

R41

N.F.

R40

N.F.

MF10A

R56

N.F.

R99

N.F.

R66

N.F.

TP34

DEEMPH_AUDIO

R92

N.F.

DEEMPH_AUDIO

13V8_UNSW_F

13V8_UNSW

FC0

OUTPUT0

TX_DATA3

R65

N.F.

TX_DATA3

R35

N.F.

R34

N.F.

3V3

5V_D

R36

N.F.

R37

N.F.

AUDIO_OUT1

R17

N.F.

(TXD1)

(MCK1)

(RXD0)

(TXD0)

(SCLK0)

(SW_BAT)

(RXD1)

(PTT)

(GND)

(nRESET)

(MAB2 INTERFACE)

C15

N.F.

R79

4k7

0VA

R32

N.F.

R33

N.F.

0VA 0VA

R80

15k

R81

100K

BC849CW

R76

15k

R77

4k7

R75

4k7

R74

22K

BC859CW

R72

3k3

R73

3k3

C70

100p

C72

1n0

C69

N.F.

0VA

C16

33p

R71

1k0

C79

100n

AUDIO_OUT_4

0VA

R70

R62

2k2

R78

100K

D10

BZX84-C4V7

R82

N.F.

R97

270R

R87

330R

Max 145mA

R28

N.F.

C73

1u0

.A09.10.06

..CM .. .INITIAL REALEASEU057

.B06.02.07

..CM .. .UPDATED TO REV BU089

R25

10k

0VA

.C21.06.07

..CM .. .UPDATED TO REV CU128

SRM9000X8 800MHz SERVICE MANUAL

Top Overlay

R48

C35

C908

C34

C37

R44

TP024

C204

R218

R832

C803

R935

C925

R917

R921

TOP COMPONENT OVERLAY

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

R38

R39

TP351

All Ri

hts Reserved

U167

800MHz RADIO BOARD

Q909

114 - 301

CJM

R17

C859

R922

C916

R905

D901

C903

C902

R902 C901

R907

Q902

R900

C900

D15

C920

C919

R906

R913 Q907

TP028

D25 D27

R24

D16 D13

TP925 R55

TP858

R54

C74

C950

TP966

Q905

D17

C78

R91

TP203

TP307

R327

R333

TP360

TP359

TP306 TP021

TP371

C33

R328

R326

R330

C325

TP026

TP320

TP304

TP201

C328

R339

R42

R43

C318

C319

TP330

R316

R69

R302

R334

TP303

R331

R335

R358

C327

C326

TP302

TP801

C800 TP820

R858

R860

C854

R340

C849

R851

U803

R849

R82

C858

R857

R856

C855

R908

C853

TP842

TP964

R847

R846

C862

R843

R831

R835

TP851

C852

R850

R855

C848

TP849

R359

6102 309 6232

C58

R62

R911

C313

R910 R909

R237

D902

R63 C57

Q50

R61

R353

R58

R51

TP222

R19

R94

C18

C25

R40

R41

TP250

C32

R50

R56

R45

TP033

R52

C53

R49

R53

TP202

R66

MF1

TP804

CF8

R13

R12

R18

C12

C69

R68

C22

R64

C14

R14

R67

C20

C17

C15

R15

R11

TP327

CF9

C307

C788

R797

TP408

C721

C722

R406

C410

C782

C59

R763

C773

C775

C774

C729

R92

TP803

D12

L900

C915

D18

C50

C54

TP34 D22

L57

R861

TP853

C872

C871

C869TP854

C868

C867 TP240

C866

TP210

C220

R233

TP241

R216

R238

R332

TP242

R234

TP243

R201

CF3

C223

TP211

C222

R217

Q200

C207

TP212

C203

C206

C205

R20

R25

C19

D24

C709b

D26

L59

C55

C489

C942

R485

C481

TP809

R369

C221

R706b

R370

L909

C924

R706

C709

R706a

TP808

R706e

R706c

R706d

C707

U701

R236

U201

U202

U903

R228

R231

C218

C708

R792

C702

D780

R232

C219

R354

R351

C349

C937

R322

TP224

L780

R791

C781

TP368

Q783

C786

C787

C705

Q781

C784

R794

R789

Q780

R793

C783

R783

R790 R786

R714

R787

C780

R796

Q782

R795

D782

R788 R717

R716 C728

C725

C724

R494

C494

R493

R492

C493

L58

R490

R491

R496

R497

C492

C490

U491

R488

R486 R489

R487

R495 Q774

R752TP746

C488

TP743

TP744

R750

C765

C766

C495

C491

TP460

R483

C486

R751 R753

L751

R754

Q751

C772

R758f

R760

C771

R758a

U760

R758b

TP747R768

R765

R764

Q776

Q775

R762 TP748

R766

C723

TP711

R769

C726

TP720

U721

C776

C777

R703

R702

R701

R700

C701

R767

C770

R758e

R770

R759e

R759f

R759a

R758c

R758d

R759b

Q771

R772

R771

C778

Q772

Q773

R774

R776

R759c

R759d

TP745

C779 R773

C768

F900

C51 C52 R93 R87

L56

C571a

D900

C571b

C571c

Q601

R616

Q452

Q453

R323

U300

C347

R349

C334

L301

R807

R312

C346

R363

C332

R314

C309

CF4

R37

R36

R214

TP968

R215

TP027

R212

R823

R34

R820

C819

R822

U800

R308

R804

C805

C348

R336

R348

R798 R 784

R799

R615

R731

R785

C635

R310

C343

TP343

C608a

C841

R342

R841

TP811

C655

C608

C604

U601

R603

R651

TP309

C604a

R810

TP840

R815

C870 C861

R869 R324

TP852

R809

C844

R808

C801 R805

R806

TP301

TP850

U302

R862 R802

R870

R874

TP802

R801

R800

R803

TP841

C344

U801

R840

C317

C804

C802

C811

R350

R811

C813

R824

TP805 TP810

R616a

Q602

C842 D801

C809

R357

R365

C324 TP411

D301

R366

R367

C450

C353

R321

TP300

Q451

TP410

TP412

Q908 R924

C926

R918

Q900

C922

C906

C930

C931

Q911 C940

R904

Q917

C921

C933

Q904

R936

Q916

R915

C354 R16

R450

R914

TP415

C452 R453

R454 R455

R459

TP414

R458

Q454

TP416

TP965

R452

R457

L905 L902

R456

C451

R451

TP367

R79

Q906

R920

Q903

R941

C928

R912

R940

R923

D907

R942

TP913

L908

C917

D10

C948

C23

C13

R4 C8

R70

R71

R77

C73

R81

C79

C72

R74

R75

R10

C10

C16

R78 R80 C7 0

R76

R72

R73

TP680

TP681

TP692

TP501

TP521

TP531

TP682

TP691

C720

R715

C603

R604

C601

R601 C600

C607a

C607

R609

R611

R606

R613

R607

R612 R614

C606a

C602 C605

C606

C609a

C609

R654 R653

R652

C656

L642

R648

C659

Q640

R647 R649 R650

TP601

C617

C657 C649

TP652

R656

C642

L641

R642

R644

E601

R645

C653

C611

R602

C615

R605

C610a

R657

C610

L651

C642a

TP651

R643

L650

R658

C660

R605a

TP650

C661

U650

R659 TP661

C663

L652

L653

R663

C662

R661

D641 D642

R662

TP653

C664

R600

R610

C654

TP441

C574

C665

C576 C575

R556

D551

Q551

R360

C551

R558

C578a

R571 R572

C578b

C578c

C572

R407

C568

L561

C569

R569

C550

R557

C556

D561

R565

L571

L572

C557

R566

TP561

R405

C579c

C579b

C579a

R409

Q402

C417

Q403

C418

R408

6102 309 62322

SRM9000X8 800MHz SERVICE MANUAL

Bottom Overlay

TP362R833 TP30 8

C941

C949

C932

1270 Ferntree Gully Rd Scoresby Australia 3179

C 2006 TMC Radio Pty Ltd ACN 099 952 977

TP366

All Ri

hts Reserve

BOTTOM COMPONENT OVERLAY

6102 309 6232 2

TP349

L904

TP969

R871

R89

R90

TP961

R933

R930

TP960 TP962

C929

Q910

C945

R361

R958

R959

R901

R957

Q912

R23

R88

C76

R85

R86

C77

R84

R929

R83

C75

R903

C320

R317

U301

TP350 TP029

TP361

C824

R834

C857

R872

TP857

R875

C839

C825

R876

TP856

U806

800MHz RADIO BOARD

CJM

U167

114 - 302

C865

C864

TP204

TP030

C200

TP342

R47 TP032

C36

R46

Q810 R863

R868

R853

R865

Q813

CF7

R864

R867

CF6

R224

R329

R301

TP348

C323

C464

C409

R28

R576

R578

D402

C336

C337

R817

TP967

R303

R466

TP373

L406

R402

C426

R412

C422

C538

D19

C829

D20

D23

C56

R725

C833

R852

R866

Q811

C873

R854

C863

C831

D21

C832

C830

C856

C860R859

U805

R99

U200

X200

C209

R219

C208

X200a

C951

C335

R208

C907

C216

TP963

D28

D730

C734

R719 D731

R720

L730

C738C745

C739

C735

R721

R724

C737

C706

R718

C732

L703

R705Q700

C733

C743

R722

C742

R704

C714

TP208

C217

R206

R209

R203

TP219

TP205

C210R205

R223

TP221

TP228

R202

R225

R230

R207

C202

TP225

R227

TP215

TP207

TP341

TP209

TP346

TP213

R204

R211

C201

C213

R210

TP214

R325

TP345

TP229

C211

C215

R222

R229

R220

C214

R952

L701

C704

U711

TP713

C718R712

TP714

C712

R235

C212

C310

R311

C303

R304

TP344

R344

R221

R364

R352 R813

R708

R707

TP347

C746

R730

C747

C741

C748

Q730

R727

R729

C740

R728

C755

R737

R733

R738

C757

C750

L732 R734

C751

R740R735

Q731

R732

C744

Q734

R736

C754

E700

L734

R742

L733

R739

C758

R743

R499

C498

L492

C497

R480

C466

R482

R60

L491

D50

C496

R498

U481

C487

Q571

C485

C482

R477

C483

C484

R475

C476

R476

R484

C480

C581

R575

C479

R574

C577

C715

C717

C716

U712

C719

R712a

TP715

R713

C769

R747

R748

E701

C762

R746

C761

R775

C713

R710

TP712

C711

Q712

R711

R709

Q711

R777

C767

C760

U761

R778

R745

C763

C475

Z471B

C474

C473

C472

C471

Z471A

C582

L409

D401

Z400

L407

R414

C470

R474

C468

C411

C412

R473

C413

U401

L402

R404C405

L408

C414

Q404

Q401

R97

R57

R95

C905

R29

C764

R98

R96

D11

R59

R671 U620

C674 C638

R552

C682

C679

L661

CF1

Q670

L665

C682a

D682

C689R686

C338

TP363

C340

C339

C341

C330

C943

C314

C329

C331

C342

TP354

R816

TP372

TP358

TP364

C316

TP355

TP352

C315

R341

TP314

C322

R320

C300

R319

C321

TP328

TP305

TP022

R346

C302

R345

R356

TP310

C301

R35

R315

TP023 TP025

TP370

TP356

R337

C345

C333

R355

R309

C305

C308

C312

TP331

R318

TP313

R623

R306

TP316

R629

C638a

L300

R300

R821

C311

R313

C304

R305

R814

C306

C807

R307

C636a

R630

R631

R634

R812

R655

R65

TP833

C816

C352

U802

TP855

C818

C820

U904

C934

C939 C817

R946

L910

C904R919

R826

R827

R347

R30

R21

L906

R362

R22

C961

D960

C912

C960

D961

C962

C963

TP831

C350

R818

C815

TP807

C909

C840

C911

TP311

C806

Z620

R819

R825C814

C935

C812

R343

D903D904

C913

C914

C910

C964

D962

D905

C965

D906

R934

C351

R960

C936

R668

C938

R925

R937

R938

R947

C923

R916

R948

C918

R932 R931

U912

R677

R671a

R676

L672

C684

L903

U901

R681

R680 Z682

Z684

R33L50

C71

L51

C946

C944 R32

C947

R926TP924

R927

C927L901

C687

D684

U900

R672

C678

C680

R673

C681

D681

C683R675

R684

R674

R683a

C658a

R683

Q681

R682

C688

Z681

Q682

R678

R688

R683b

R697

C502

C504

R502

C509

C508

L501

R699

C501

Q501

R553

R554

R559

C553

C555

R562

C552

R561

R564

C560

C563

R524

Q522

R523

R532

R528

R505

C513

C518

C516

C515

E603

C511

R512

R522

C525

R514

C524

C530

R525

R527

R531

C532

C523

R526

C531

R529

C685

R679

C699a

Z683

R685

C699

R696

C698

C697

R501

R503

R698

C503

R695

L692

C686

D683

Q691

R687

C691

C693

R692

R689

L691

R691

C690

R694

C695

R690

C692

C696

R693a

R693

C507

R513

R515

C512

R504

C506

R511

L502

L511

Q521

C526

L522

C533

C527

R530

C694

C514

C517

R516

R520

L521

C522

C521

R521

R26

R534

R27

R646

C636

D622

C637

R633

TP631

C647a

L623

D623

R632

R639

C647

R641

Q632

Q631

L624

C651a

R636

R638

C645

C651

C648

R637

D621

C641

R628

C639

R629a

C640

C643

C625

Q623

C631

R627

C624

C630

C646

R635

C629

C633

R626

Q622

R624

Q621

L622

C627

C632

R625

R472

C465L463

R469

Q461

C463

R640

C644

C467R 471

R468

C462

C408

C400

C415

R403

C424

R467 C469

L462

R421

C644a

C650

C461

R626a

C460

R462

C628

E600

R463

C459

R461

C447

C431

C430

L461

C434

D431

C433

R422

C435

R465

C432L431

Z430

C622

L601

C612

C613

D610

C614

C620

C634

C616

R619

C619a

C621a

R620

R622 L621

R608

R621

D624

R618

C619

C623

C618

C658

R617

L670

C675

L664

C670

C672

C676

C677

R669

R670

D661

C673

L663

L662

C667a

C666

R664

R666

R665

C671

C668

C669

R625a

C621

C626

R428

L449

R424

R621a

R427

R426 L448

U441

C445

L432

C437

C443

C436

C499

Z431

C441

C440

D432

R423

C438

C667

R541

R540

R543

R544

R545

D660

R667

E602

C543

R547

R551

R546

R542

C573

C439

C542

C541

R548

R549

U551

R563 C554

R560

R568

E401

C567

C566

R533

Q532

R535

Q531

Q531a C535

C539

C536

U561

C562

C534

R536

E503

L531

R539

C537

R537R538

R567

C565

S501

MF4

Q572

R579

R573

C595b

C596

C595

R577

Q573

C586

C580

C585

R591

C599

R594

L594

C598

C595a

C598a

E502

R593

C593

C592

L593

C592a

C592c

C401

L401

C421

C419

C403

C404

C406

C407

L405

C587

E402

D580D582

C583

C584

D583

C588

L592

L581

L591

L573

D581

C589

C592b

E501

R592

C590

SRM9000X8 800MHz SERVICE MANUAL

APPENDIX A - GLOSSARY OF TERMS

A summary of common radio terms and some other terms used in this document, and their meanings, are given

below.

ADC Analog to Digital Converter.

AFC Automatic Frequency Control.

AGC Automatic Gain Control.

Alarm A Selcall sequence sent from subscriber equipment to indicate an Emergency situation.

When activated the radio will enter a repeating sequence consisting of an Alarm Live

Transmit Time and an Alarm Dead Receive Time.

Certain special conditions for the radio may also occur during the alarm.

A dedicated SFM (trunked system) that is sent by pressing the Alarm Key.

ANI Automatic Number Identification.

Auto Interrogate An Acknowledge identity sent as a response to an individual reset call.

Automatic Power Feature whereby the transmit power is automatically set to a level determined by the

level of the received signal. This is used to extend the battery life and/or reduce radiated

emissions.

Automatic Volume Feature whereby the background audio level is monitored and if this is found to be noisy

then the volume level is increased to compensate, allowing the user to hear better.

Busy The state of a channel such that:

• For a non-signalling channel - if Busy this means that the carrier is above squelch.

• For a channel with CTCSS/DCS - if Busy this means a signal is being received with

either no CTCSS tone / DCS code or the correct CTCSS tone /DCS code.

• For a channel with Selcall - if Busy this means a closed channel where the signal is

above squelch.

A feature that equates to 'Do Not Disturb' such that the radio will reject all non-

emergency calls. This feature can be activated using the Busy key (if assigned) or from a

menu; it is reset to disabled at switch on.

C4FM Compatible 4-Level Frequency Modulation.

Call Back A request, sent by the dispatcher, to a unit requesting that the unit calls the dispatcher

back.

Channel Spacing The distance (in kHz) between the defined frequency channels.

Clipboard A temporary storage area in Windows used to store data in cut, copy and paste

operations.

Closed A state where transmit and receive are not allowed until a Selcall message to open the

channel has been received. A Closed Channel is one which defaults (when selected or

after timed reset) to its closed state. Contrast with Open. Normally a Closed channel

would have Selcall Mute and PTT Inhibit would be enabled.

CODEC COde (Analog to Digital Converter) / DECode (Digital to Analog Converter).

SRM9000X8 800MHz SERVICE MANUAL

Community Repeater A communications set-up whereby different groups of radios can operate by using only

one base station. This is achieved by the use of CTCSS tone signalling such that each

group has a different CTCSS tone (encode and decode) and radios can only

communicate with other radios in their group. Only one group of radios can use the base

station at any one time.

CRU Central Repair Unit

CTCSS CTCSS stands for Continuous Tone Controlled Signalling System. A continuous tone

(lower than the audio range of the receiver) is modulated onto the carrier as well as other

signalling or voice traffic. Compare with DCS. Only receivers that have been instructed to

recognise the same CTCSS tone are able to receive the transmissions, since the squelch

of receivers looking for different CTCSS tones prevents the audio from being heard. This

provides a simple method of sending messages to selected receivers only and allows

several different networks to use the same frequencies. CTCSS is also known as Tone

Lock or Tone Squelch.

DAC Digital to Analog Converter.

Dash (-) digits Digits known as 'No Tone' digits used in Selcall Identities.

DCS Digital Coded Squelch system is based on sending a continuous stream of binary code

words using, low deviation, direct frequency shift keying. Only receivers that have been

instructed to recognise the same DCS sequence are able to open their squelch and

receive the associated speech transmissions. This provides a simple method of sending

messages to selected receivers only and allows several different networks to use the

same frequencies.

Decode Reception of signalling. Either Selcall where encoded tone frequencies are decoded and

identified as specific tones digits or CTCSS/DCS where tones are analysed to see if the

channel should be opened.

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.

DSP Digital Signal Processor.

DTMF Abbreviation of Dual Tone Multi-Frequency signalling. Used to dial into Telephone

networks using tone dialling.

Dual Watch A facility that enables the Radio to periodically monitor another channel for a signal

above squelch. Typically applications are checking an emergency channel whilst on

another channel.

Economiser A process by which the Receiver is powered down whilst there is no received signal.

Periodically the receiver is powered up to check for such a signal. This is used to extend

the battery life.

Enabled The 'True' state of a parameter. That indicates this parameter is active. Typically this

state is represented by a mark (either a tick or a cross) in a check box. Compare with

Disabled.

Encode Transmission of signalling. Either Selcall where Selcall tone digits are encoded into tone

frequencies or CTCSS/DCS where tones modulated onto the channel's carrier.

External Alert A facility for switching on various ancillary devices to meet customer's individual

requirements (e.g. car horn, flashing lamp etc.) when 'called'.

Only available on a mobile radio. To make available: go to Hardware Components,

Terminal Settings and set Product Type to a Mobile type.

Fallback A mode of operation that may be entered when the Network is suffering a malfunction.

During this mode certain facilities (e.g. PSTN) may not be available.

SRM9000X8 800MHz SERVICE MANUAL

FFSK Fast Frequency Shift Keying. This is a signalling system for the transfer of digital

information. It works by using one of two audio tones to represent transmit data..

Fleet A group of units formed such that only a shortened form of dialling (2 or 3 digits) is

required between them. These groups are normally assigned contiguous ident's.

PLA Programmable Logic Array.

FPP Field Personality Programmer.

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)

• Use in DTMF dialled strings - their use is network dependent to access special services.

Identity Name given to a sequence of tones which is used in sequential tone signalling. See Valid

Selcall Digits.

Idle State The state of the radio when it is not in a call.

Inaccessible A state of a channel such that it is unavailable to the user through normal methods of

channel selection. Therefore inaccessible channels will not appear on the channel menu.

Link Establishment A delay incorporated into the start of every selective call or DTMF transmission

Time which allows for the finite delay of the radio equipment in responding to any radio signal.

This includes both the commencement time of the originating transmitter and the

response time of the receiver.

Locked A state of a channel whereby it is not possible to change channels using the normal

up/down keys on the channel menu until the OK key is pressed. See Auto Channel

Selection Lock.

Null Id A Selcall identity that is not defined and whose tones' field is displayed as a blank.

Open A state where transmit and receive are allowed. The channel is no longer open when

reset. Contrast with Closed.

Normally an Open channel would not have Selcall Mute and PTT Inhibit would be

disabled.

PABX Private Automatic Branch Exchange.

Password An optional password system available on the radio. This feature is only available if the

radio 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.

PLL Phased Locked Loop.

PMR Private Mobile Radio (not normally trunked).

Priority Channel A channel in a search group that is scanned between every other channel.

PSD Peak System Deviation.

PSTN Public Switched Telephone Network.

PTT Press To Talk. This is the term given to the operator’s key normally used to commence

transmitting a message.

PTT Inhibit A state whereby transmission using the PTT is not allowed. Also know as Tx Lockout.

PWM Pulse Width Modulation.

SRM9000X8 800MHz SERVICE MANUAL

Reference Frequency Normally this is generated from a high stability crystal oscillator reference and is divided

digitally in a frequency synthesiser for comparison with other frequency sources, e.g. a

VCO.

Repeat Tone A selcall tone that is used to replace repeated tones. Fixed at tone E.

Example: An identity entered as '12333' would be sent by the radio as '123E3'.

Reset Resetting is caused by Three Tone Reset, a Remote Reset, an Individual reset or a

Group reset (Call Types in Decode Identity). When a radio is reset the effect on the radio

will be as follows:

• Any Call Alerts will be stopped

• The Call LED flashing will stop

• If the channel is in Open mode then the channel is closed

• The PTT is optionally inhibited see PTT Inhibit After Reset Sequence.

• In searching - if paused on a selcall channel then searching resumes

• If the Acknowledge property of a Decode Identity is set to 'Auto Interrogate' or

'Transpond & Auto Interrogate' then the Auto Interrogate encode identity is transmitted.

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.

Search Group A group of channels that are either scanned for a signal above the search threshold or

are compared and voted for the strongest signal

Selcall Selective Calling - a system of signalling which allows 'dialling up' of specific mobiles,

portables and controllers. Such a system may be used to pass messages as a data

message to a specific user or group of users. It can be used to provide remote switching

facilities and to provide access control into community repeaters or similar devices.

Selcall Mute A state of the audio gate whereby the loudspeaker is muted (closed).

Selcall System Selective Calling, uses a tone sequence at the start, and end, of a call to control which

members of a fleet react to the transmission.

Sidetone Sidetone is the audio which can be (optionally) heard when Selcall, DTMF and toneburst

transmissions are made.

Simplex Mode of operation whereby the radio operates as a conventional fixed channel radio

outside the Trunking network.

Squelch System used to prevent weak, unintelligible signals and random noise from being heard

by a radio operator while still allowing intelligible signals to be received normally. This is

accomplished by the use of a threshold below which any received signals are ignored.

Only signals whose signal-to-noise ratio is above the squelch level cause the audio

circuits of the radio to be enabled, with the result that only satisfactory signals are

received. The squelch level is specified in SINAD.

Star (*) digits Digits known as Status or Message digits. These digits are used for three purposes:

• Status Digits for Selcall Identities

• Wildcard digits in Status strings

• Use in DTMF dialled strings - their use is network dependent to access special services.

Status A feature whereby a radio's status (or usually the status of the radio's user) can be

transmitted and a status message from other radios can be displayed. This operates

SRM9000X8 800MHz SERVICE MANUAL

through status digits in Selcall identities. Either in Encode Identities or Decode Identities

as follows:

Encode Identities: Status digits within the identity are used to transmit the current

situation of the radio's user (e.g. "Out To Lunch").

Decode Identities: Status digits are looked up in a table (Status Menu) for possible

messages to display.

SW Software.

TCXO Temperature Compensated Crystal Oscillator.

Three Tone Reset This is a system whereby a call to a user automatically reset all other users in a group.

Example: a call to user '12345' would call 12345 and reset all other users on this channel

with an identity 123nn where n can be any digit 0-9, A-F.

Tone Burst An audio tone is transmitted at the start of transmission to inform a relay (repeater)

station to switch itself on to relay the transmission.

Transpond An Acknowledge identity sent as a response to an individual call.

Tx Inhibit A facility which prevents the user from transmitting,(other than alarms), while the channel

is Busy.

User Identity This is a sequence of up to four digits entered by the user when the Radio is switched

on, if this option is programmed. These digits are then substituted into any transmitted

Selcall identity which includes # digits.

VCO Voltage Controlled Oscillator.

Vote Method used to compare the signal strength on a current channel with another specified

channel and then to choose the channel having the stronger signal.

Voting Feature used during searching when there is more than one channel that satisfies the

required conditions. It involves examining all the channels that satisfy the required

conditions, and then selecting the channel with the highest signal strength.

VOX

Voice Operated Transmit.

Simoco Wireless Solutions SRM9000X8 800 MHZ ANALOGUE AND DIGITAL TRANSCEIVER User Manual USERS MANUAL

Simoco Australasia Pty Ltd 800 MHZ ANALOGUE AND DIGITAL TRANSCEIVER USERS MANUAL

USERS MANUAL

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