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TMC Radio SRP9170 Service Manual

Fm vhf/uhf portable radio transceiver
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SRP9170/80 Series
FM VHF/UHF Portable
Radio Transceiver
SERVICE MANUAL
TNM-M-E-0023
ISSUE 1.00
Mar 2009

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  • Page 1 SRP9170/80 Series FM VHF/UHF Portable Radio Transceiver SERVICE MANUAL TNM-M-E-0023 ISSUE 1.00 Mar 2009...

  • Page 3: Table Of Contents

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Table of Contents INTRODUCTION ..........................1.1 ............................. 1.1 ENERAL ............................1.1 COPE ..........................1.1 ESCRIPTION ..................... 1.2 RODUCT ARIANTS ACILITIES ................1.5 OFTWARE ERSIONS AND AMING ONVENTION 1.5.1 Filename Structure......................1.5 1.5.2 Application Code ........................ 1.5 1.5.3...
  • Page 4 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 4.3.6 Reference Oscillator ......................4.7 ........................4.7 YSTEM ONTROLLER 4.4.1 DSP and PLA........................4.7 4.4.2 DSP Clock Oscillator ......................4.8 4.4.3 PLA PWM ...........................4.8 4.4.4 Digital I/O ..........................4.9 4.4.5 System Memory........................4.9 4.4.6 Serial Data Interface......................4.10 ........................4.11 OWER UPPLIES 4.5.1...
  • Page 5 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 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...

  • Page 6: Document History

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Document History Issue Date Comments Draft 1.00 2009-03-31 Initial issue. List of Associated Publications Document No. Description Issue TNM-U-E-0088 SRP9180 PMR Brief User Guide. TNM-U-E-0089 SRP9180 PMR Operating Instructions. TNM-U-E-0090 SRP9180 TMR Operating Instructions.

  • Page 7: Warnings And Cautions

    Servicing and upgrades of IECEx approved Intrinsically Safe radios and accessories must only be carried out by TMC Radio Pty Ltd IECEx Intrinsically Safe trained staff, at locations that have been IECEx approved. Please contact TMC Radio Pty Ltd for your nearest Service Department.
  • Page 8 TMC Radio Pty Ltd published User Guides and Service Manuals, may compromise the safety and integrity of the radio or accessories;...

  • Page 9: Glossary Of Terms

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 GLOSSARY OF TERMS A summary of common radio terms and some other terms used in this document, and their meanings, are given below. Trunking Signalling Specification relating to trunked networks for shared use. Used primarily for networks in France.
  • Page 10 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Channel Spacing The distance (in Hz) between the defined frequency channels. CHEKKER System Interface Specification for Trunked Networks in Germany. CLIM Call Limit Time; time limit on calls made. Normally this is defined by the Call Time Limit parameter but can by overridden by the TSC depending upon the setting of TSCLIM.
  • Page 11 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Disabled The 'False' state of a parameter. That indicates this parameter is not active. Typically this state is represented by an unmarked check box. Compare with Enabled. Digital Signal Processor. DTMF Abbreviation of Dual Tone Multi-Frequency signalling. Used to dial into Telephone networks using tone dialling.
  • Page 12 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Intrinsically Safe. Liquid Crystal Display. Link Establish Time A delay incorporated into the start of every selective call or DTMF transmission that allows for the finite delay of the radio equipment in responding to any radio signal.
  • Page 13 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 PSTN Public Switched Telephone Network. 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.
  • Page 14 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Selcall Mute A state of the audio gate whereby the loudspeaker is muted (closed) until a valid Selcall is received. 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.
  • Page 15 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 The forward channel from the TSC to the radio is divided into timeslots. Each site using the channel is allocated one timeslot in which to transmit and send signalling. Therefore, when on a timeshared channel, the radio may be able to receive bursts of signalling from different sites at different signal strengths and may receive periods when no signalling is received.

  • Page 17: Introduction

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 INTRODUCTION ENERAL The SRP9170/80 series of FM portable radio transceivers are designed for conventional PMR and Trunked operation in VHF and UHF radio systems. The transceiver is available in four functional variants. The variants are as follows:...

  • Page 18: Product Variants And Facilities

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 RODUCT ARIANTS ACILITIES Product variants and facilities are detailed in Table 1-1, Table 1-2 and Table 1-3. Table 1-1 Common Features for All Variants Model Feature 9170 / 9170is 9180 / 9180is Keys 7 Function keys. All keys 7 Function keys.
  • Page 19 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Table 1-2 Conventional-PMR Variants Model Feature 9170 / 9170is 9180 / 9180is Channels 200 (nominal). 1000. CTCSS / DCS Selcall / FFSK / DTMF. CTCSS / DCS / Selcall / FFSK / DTMF. Signalling FFSK text messaging display.
  • Page 20 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Table 1-3 Analogue Trunked Variants Feature 9170 / 9170is 9180 / 9180is Channels 1024 channels in 50 sub-bands. 136 to 174 MHz, 400 to 480 MHz. Frequency Bands Yes. Yes. Background Hunt and Vote-Now Yes.

  • Page 21: Software Versions And Naming Convention

    AMING ONVENTION There are various associated items of software (SW) required for the SRP9170/80 radio and programmer to operate. This section simply defines the naming rules of the SW files to allow identification and conformity. This allows different versions of SW to be distributed and co-exist without confusion.

  • Page 22: Version Number

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Version Number 1.5.4 This is a 3-digit number allocated by Engineering to identify the SW version: 182 = Version 1.82. Exclusions 1.5.5 The Programmer SW does not follow the above rules, as it is a PC based Program and its version number can be easily identified by starting the SW.

  • Page 23: Automatic Version Upgrade Prompting

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Options: Radio_Information The portable software version can be read from the portable display if required by accessing the Set-up menu and then choosing Radio Info and selecting the software version on the radio. Automatic Version Upgrade Prompting 1.5.7...

  • Page 24: Wailing Siren (Boot-Up Software Corrupted)

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 1.5.7.1 Transceiver SW Description, Start-up and Backup-Software The SRP9170/80 Transceiver software is split into the following separate modules: Bootloader and Backup Software; • • Start-Up Software; PLA and PLA-Backup Software; • Mainline PMR Software;...

  • Page 25: Djustment And Lignment

    DJUSTMENT AND LIGNMENT There are no internal adjustments in the SRP9170/80. Re-programming and alignment are performed using software tools. For testing, a special test jig is required so to provide power and control lines. As the radio has no internal adjustments, there is no need to have the radio PCBs powered while out of the chassis.

  • Page 26: Transmitter

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Dimensions (radio excluding antenna): Height Width Depth 150 mm 63 mm 37 mm Excluding Including 2200 mAh volume and battery. channel/zone control. Weight: Radio only 210 g Battery Li-ion 2200 mAh 250 g Antenna E0...

  • Page 27: Receiver

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Receiver 1.7.3 ETSI AS/NZS4295 ≤ 0.5 µV PD (- 113 dBm) for 20 dB ≤ 0.3 µV PD (- 117.5 dBm) for 12dB Sensitivity: SINAD SINAD 25 kHz Channel Spacing: > 73 dB 25 kHz Channel Spacing: > 73 dB...

  • Page 28: Signalling

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Signalling 1.7.4 1.7.4.1 CTCSS All 38 standard CTCSS Tones are supported as per the table below. Identifier Frequency (Hz) Identifier Frequency (Hz) Identifier Frequency (Hz) 67.0 107.2 167.9 71.9 110.9 173.8 74.4 114.8 179.9 77.0...
  • Page 29 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Decoder Bandwidth: Not greater than ± 3.0 % Deviation Sensitivity: Less than 6.0 % of system deviation (for decode with full RF quieting). Noise Immunity: Less than 500 ms dropout per minute at 10 dB SINAD.
  • Page 30 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Selcall Tone Frequency Table (Frequency in Hz). Tone ST500 SIGTEC SIGTEC SEPAC ST500 SIGTEC CCIR CCIR CCIR CCIRH CCIR 1981 1981 1981 1981 1981 1981 1981 1981 1124 1124 1124 1124 1124 1124 1124...
  • Page 31 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Tone SEPAC ST500/CML ST500 SIGTEC SIGTEC SEPAC ST500 ZVEI-3 ZVEI-3 DZVEI DZVEI NATEL 2200 2400 2200 2200 1633 1060 1060 1160 1060 1060 1160 1270 1160 1160 1023 1023 1023 1270 1400 1270 1270...

  • Page 32: Environmental

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 1.7.4.5 Data rate: 134 bits per second, frequency modulated. 7.46 ms/bit 171.6 ms per codeword continuously repeating. Deviation: 0.5 kHz for 12.5 kHz systems. 1 kHz for 25 kHz systems. Codeword size: 23 bits comprising: 8 bits - DCS code (3 octal digits 000-777);...
  • Page 33 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Storage Temperature - 40 °C to + 80 °C Product Sealing Main Radio Unit: IEC60529 rating IP67 Accessories: IEC60529 rating IP65 MIL-STD-810F Low Pressure Storage: 500.4 Procedure I Low Pressure Operational: 500.4 Procedure II High Temperature Storage: 501.4 Procedure I...

  • Page 35: Service Philosophy

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 SERVICE PHILOSOPHY ERVICE ONCEPT The SRP9170/80 series has been designed to operate in PMR, analogue trunked, and P25 digital modes using common core electronics, software and interfacing. There are three levels of service available: Level...
  • Page 36 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 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.

  • Page 37: Disassembly

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 DISASSEMBLY Remove the Battery Refer Figure 3-1. (1) Slide the battery release button towards the bottom of the transceiver to release the battery. (2) Lift the battery away from the radio. Figure 3-1 Battery Removal Remove the Antenna, On / Off / Volume Control Knob, Channel Control Knob, and Zone Control Lever Refer Figure 3-2.
  • Page 38 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Figure 3-2 Antenna and Knob Removal Remove the Side RF Connector Refer Figure 3-3. Unscrew the RF connector (or dummy insert if fitted) from the side accessory connector with the removal tool (6102 790 0016) using a counter-clockwise motion.
  • Page 39 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Remove the Frame Assembly Refer Figure 3-4. (1) Use a small, flat-blade screwdriver to carefully release the cast metal frame assembly from the bottom of the front casing. This action releases the radio PCB from the MMI PCB.
  • Page 40 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Remove the Metal Screen from the Radio PCB and Frame Assembly Refer Figure 3-5. (1) Use a small, flat-blade screwdriver to release the nine spring tabs on the metal screen. Note: releasing three spring tabs on one side and the one at the top of the metal screen should be sufficient to remove the metal screen.
  • Page 41 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Figure 3-6 Removal of MMI Assembly RE-ASSEMBLY Re-assembly is the reverse of disassembly. However: (1) examine the various seals before re-assembly and replace with new items if necessary; (2) slight outward deflection of the case walls will ease re-assembly of the MMI PCB behind the retaining lugs;...
  • Page 42 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 This page intentionally left blank 3 - DISASSEMBLY Page 3.6...

  • Page 43: Technical Description

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 TECHNICAL DESCRIPTION ECEIVER Refer to Figure 4-1. Description based on TU-band radios. Rx VCO Frequency: UHF: Low-side injection (RF - 45)MHz VHF: High-side injection 45)MHz Rx VCO Synthesiser Control Volts SYNTH Buffer Buffer to U701...

  • Page 44: First Mixer And If Section

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 control voltages vary from 0 to 3.3 V after integration of each PWM signal. The value of each of the four control voltages is dependent on channel frequency and tuning. Each control voltage is applied to level shifting transistors, Q404 to Q411, where they are converted to negative voltages in the range - 0.5 V to - 11.5 V.

  • Page 45: Transmitter

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 RANSMITTER Refer Figure 4-2. RX_ENABLE1 From DSP Tx VCO TX_ENABLE Tx_PSU = ON Enable From DSP (Tx_PON = ON) Switch Rx_PSU = OFF Q603 INT_MIC (Rx_PON = OFF) Rx/Tx Tx Audio Audio Switch Switch...

  • Page 46: Power Control

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Comparator U520B monitors the Tx PA current through L571.The output of U520B is temperature compensated by R535/536/537, and then passed to analogue switch U800B. Comparator U301C is used to compare the output of U800B with a 13 ms ramp signal. The output of U301C is passed to the PLA and then processed by the DSP.

  • Page 47: Phase -Locked Loop (Pll) Frequency Synthesiser

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 (PLL) F HASE OCKED LOOP REQUENCY YNTHESISER General 4.3.1 Refer to Figure 4-3. The PLL frequency synthesiser consists of one transmitter VCO, two receiver VCOs, loop filters, varactor negative- voltage bias generator, reference oscillator, and an integrated, fractional-N and integer-N synthesiser device U701.

  • Page 48: Vcos

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 frequency, an error signal is generated by the phase comparator. This error signal forces the VCO to change frequency in a direction to minimise the error signal. A valid lock detect output is derived from pin 12 and is sampled by the PLA. During transmit, if an unlocked signal is detected the radio will switch back to receive mode.

  • Page 49: Reference Oscillator

    DSP and PLA 4.4.1 The SRP9170/80 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: •...

  • Page 50: Dsp Clock Oscillator

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 • 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; • DSP crystal oscillator control;...

  • Page 51: Digital I

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 The monitored analogue voltages are: Tx/Rx frequency synthesiser loop volts (LOOP_VOLTS); • MMI key detection (KEY_DET); • Tx PA current (TX_CURRENT); • Transceiver audio volume (VOLUME); • type of external device detection (EXT_SENSE); •...

  • Page 52: Serial Data Interface

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Serial Data Interface 4.4.6 A serial data port is provided on the side accessories connector, S4. The serial data interface supports the following signals: 4.4.6.1 Receive Data (RxD1_In) Transistors Q90 and 91 form an inverting buffer that translates the incoming data stream to 0 to 3 V logic. The...

  • Page 53: Power Supplies

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 OWER UPPLIES Refer to Figure 4-5. BAT_FS RF PA (U500) F902 BAT_SW F900 Audio PA (U850), Accessories (S4) Battery Switch 7.2V Q900 STBY BAT_FS from PLA (U300) F903 90MHz VCO (Q402), Ref Osc (U700), Phase Mod...

  • Page 54: Power Supply Detail

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Power Supply Detail 4.5.2 The following is a list of the SRP91X0 power supplies and some of the devices and circuits they supply. 4.5.2.1 5V Regulator U900 This regulator can be powered down by a STBY signal from the PLA. The RX_PSU supply is switched via Q903.

  • Page 55: Keyboard And Graphic Display Mmi

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 3P3 to Rx BPF tune bias (R469); and, • 3P3 to synthesiser (U701). • 4.5.2.4 Un-Switched Fused Battery • BAT_FS supplies the RF PA (U500). • BAT_FS supplies the transceiver On / Off switch.

  • Page 56: Mmi Interface Signals

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 MMI Interface Signals 4.6.3 S5 Signal Name J1 Signal Name Function Signal Type 0VA (1) LCDRW (1) Not used D3 (2) D3 (2) Data bit 3 0 V or 5 V D5 (3) D5 (3)

  • Page 57: Function Keys

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Function Keys 4.6.4 Four function keys are located below the display: Legend Function Activate menu. Scroll down through channels (or menu, if active). Scroll up through channels (or menu, if active). Confirm choice or action (i.e. Enter).
  • Page 58 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 This Page Intentionally Left Blank 4 - TECHNICAL DESCRIPTION Page 4.16...

  • Page 59: Alignment (Level 3 Service Only)

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 ALIGNMENT (LEVEL 3 SERVICE ONLY) This procedure is applicable to all versions of SRP9170/80 portable transceivers. Caution Preparing the radio for alignment will erase from the radio all customer PMR and Trunking configuration data (channel, signalling information etc). The only data retained by the Alignment Tool is the factory alignment data for the radio (DAC settings for Tx power, front-end tuning etc).

  • Page 60: Est Et

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Refer Figure 5-1. Notes for test setup: 1. The PTT switch on the Radio Test Interface Unit (refer Figure 5-2) activates transmit on the transceiver. 2. Interface data levels are TTL with RS232 polarity (i.e. 0 V = MARK, + 5 V = SPACE), and will work with most personal computers.

  • Page 61: Comms Set Up

    SRP9170/80 Radio Test Interface Unit COMMS Set up 5.2.1 Copy the SRP9170/80 Alignment Tool Computer Software file to the PC hard drive and run the program. The Alignment Tool Opening Menu is displayed. Go to the Options menu and choose Comms Setup.
  • Page 62 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 The Comms Setup dialogue box is displayed. Select the Comms Port setting appropriate to the configuration of your PC and choose (Usually COM1). 5 - ALIGNMENT Page 5.4...

  • Page 63: Radio Preparation

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Radio Preparation 5.2.2 Radio parameters need to be aligned sequentially as detailed in this procedure. At the Opening Menu, select the Align Menu and choose Prepare/Read Radio. The WARNING is displayed. Choose No if you want to save the configuration and use the FPP software to read and save the data to a file.

  • Page 64: Alignment Procedure

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Alignment Procedure 5.2.3 Radio alignment must be done in the sequence detailed in the following paragraphs. This alignment assumes that the radio is functioning normally. 5.2.3.1 VCO DAC Alignment Select the VCO DAC page.
  • Page 65 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 5.2.3.2 TCXO Frequency Adjust Select the Mute/TCXO page. Select PTT. Adjust the TCXO slider to ensure that the transmit frequency error is within 50 Hz for the selected channel (to be measured on the RF Test Set frequency counter).
  • Page 66 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 5.2.3.3 Rx Front End 1. Ensure that the TCX0 Alignment has been done before proceeding with this section. 2. Select the RX Front End page. 3. Select Open Mute. 4. Set the Volume slider to 21. Speaker audio should now be visible on the CRO. If required readjust the Volume slider to a suitable level.
  • Page 67 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 5.2.3.4 Mute/Audio Balance Adjustment Note. This adjustment has default setting of 1000 / 2600 and should not need changing except for specific requirements. Squelch Adjustment 1. Select the Mute/TCXO page and select Open Mute.
  • Page 68 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 5.2.3.5 RSSI Select the RSSI Cal page. Set the Signal Generator for a RF output level of – 90 dBm and 2 kHz deviation at the specified frequency. Activate the Store RSSI button. The receiver RSSI threshold setting is calibrated.
  • Page 69 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 5.2.3.6 Tx Power Select Tx Power/Mod page. Select Channel 0. Select the 0.5 Watt power level. Press the PTT button. Adjust the Tx Final Value slider for a power output of 0.5 W. Deselect PTT.
  • Page 70 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Adjust the Tx Final Value slider for a power output of 5 W. Note that the supply current is less than 2.5 A. Deselect PTT. Repeat steps 15 to 18 for the remaining 3 Channels (1, 2, and 3).
  • Page 71 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 Reduce the Tx Audio input level to 10 mV RMS and check that the deviation is within the range ± 1.25 kHz to ± 1.75 kHz for all channels. 5.2.3.8 Programming When all channels have been aligned the radio is programmed with the new alignment data: Select Align and choose Write Alignment.
  • Page 72 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 This Page Intentionally Left Blank 5 - ALIGNMENT Page 5.14...

  • Page 73: Replaceable Parts

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 REPLACEABLE PARTS The parts listed in this section are considered to those most likely to need replacement due to physical damage to the radio. OMMON ARTS Ident Description Quantity per Part Number Assembly SRP9180 PTT Button.
  • Page 74 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 ANTENNA WHIP R1 BAND (335-375 MHz) SRP9100. PA-AWR1 ANTENNA HELICAL TU BAND (400-480 MHz) SRP9100. PA-AHTU ANTENNA HELICAL UW BAND (440-520 MHz) SRP9100. PA-AHUW ANTENNA WHIP TU BAND (400-480 MHz) SRP9100. PA-AWTU ANTENNA WHIP UW BAND (470-520 MHz) SRP9100.

  • Page 75: Appendix A - Accessory Connector

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 APPENDIX A - ACCESSORY CONNECTOR The following table details the pin-out on the accessory connector. Signal Name Signal type Direction Ext_Rx2 Balanced Audio Out (+). 10 Vp-p into 16 ohm To Accessory. Ext_Rx1 Balanced Audio Out (-).
  • Page 76 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 This Page Intentionally Left Blank APPENDIX A – ACCESSORY CONNECTOR Page A-...

  • Page 78: Appendix B - Accessories

    TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 APPENDIX B - ACCESSORIES Lapel Speaker Microphone PAR-9180LMS2 Figure B-1 Lapel Speaker/Microphone Introduction The lapel loudspeaker/microphone is a robust, lightweight, unit with an integral press-to-talk (PTT) switch and a headset socket. The unit connects to the portable radio via a 450 mm curly cable (un-stretched) fitted with a M5 type plug.
  • Page 79 TNM-M-E-0023 SRP9170/80 Service Manual Issue 1.00 DC voltage overshoot during switching periods: Within 2% of nominal voltage. Loudspeaker Impedance: 16 Ω ± 2 Ω Power rating: 0.3 W nominal, 0.5 W maximum. Headset socket: 3.5 mm - loudspeaker disconnected when jack inserted.

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